Merge remote-tracking branches 'asoc/topic/fsl-spdif', 'asoc/topic/img' and...

Merge remote-tracking branches 'asoc/topic/fsl-spdif', 'asoc/topic/img' and 'asoc/topic/intel' into asoc-next

Documentation/devicetree/bindings/sound/fsl,spdif.txt

@@ -27,6 +27,11 @@ Required properties:
 			  Transceiver Clock Diagram" of SoC reference manual.
 			  It can also be referred to TxClk_Source bit of
 			  register SPDIF_STC.
+	"spba"		  The spba clock is required when SPDIF is placed as a
+			  bus slave of the Shared Peripheral Bus and when two
+			  or more bus masters (CPU, DMA or DSP) try to access
+			  it. This property is optional depending on the SoC
+			  design.
 
    - big-endian		: If this property is absent, the native endian mode
 			  will be in use as default, or the big endian mode

Documentation/devicetree/bindings/sound/img,i2s-in.txt

+Imagination Technologies I2S Input Controller
+
+Required Properties:
+
+  - compatible : Compatible list, must contain "img,i2s-in"
+
+  - #sound-dai-cells : Must be equal to 0
+
+  - reg : Offset and length of the register set for the device
+
+  - clocks : Contains an entry for each entry in clock-names
+
+  - clock-names : Must include the following entry:
+	"sys"	The system clock
+
+  - dmas: Contains an entry for each entry in dma-names.
+
+  - dma-names: Must include the following entry:
+	"rx"	Single DMA channel used by all active I2S channels
+
+  - img,i2s-channels : Number of I2S channels instantiated in the I2S in block
+
+Optional Properties:
+
+  - interrupts : Contains the I2S in interrupts. Depending on
+	the configuration, there may be no interrupts, one interrupt,
+	or an interrupt per I2S channel. For the case where there is
+	one interrupt per channel, the interrupts should be listed
+	in ascending channel order
+
+  - resets: Contains a phandle to the I2S in reset signal
+
+  - reset-names: Contains the reset signal name "rst"
+
+Example:
+
+i2s_in: i2s-in@18100800 {
+	compatible = "img,i2s-in";
+	reg = <0x18100800 0x200>;
+	interrupts = <GIC_SHARED 7 IRQ_TYPE_LEVEL_HIGH>;
+	dmas = <&mdc 30 0xffffffff 0>;
+	dma-names = "rx";
+	clocks = <&cr_periph SYS_CLK_I2S_IN>;
+	clock-names = "sys";
+	img,i2s-channels = <6>;
+	#sound-dai-cells = <0>;
+};

Documentation/devicetree/bindings/sound/img,i2s-out.txt

+Imagination Technologies I2S Output Controller
+
+Required Properties:
+
+  - compatible : Compatible list, must contain "img,i2s-out"
+
+  - #sound-dai-cells : Must be equal to 0
+
+  - reg : Offset and length of the register set for the device
+
+  - clocks : Contains an entry for each entry in clock-names
+
+  - clock-names : Must include the following entries:
+	"sys"	The system clock
+	"ref"	The reference clock
+
+  - dmas: Contains an entry for each entry in dma-names.
+
+  - dma-names: Must include the following entry:
+	"tx"	Single DMA channel used by all active I2S channels
+
+  - img,i2s-channels : Number of I2S channels instantiated in the I2S out block
+
+  - resets: Contains a phandle to the I2S out reset signal
+
+  - reset-names: Contains the reset signal name "rst"
+
+Optional Properties:
+
+  - interrupts : Contains the I2S out interrupts. Depending on
+	the configuration, there may be no interrupts, one interrupt,
+	or an interrupt per I2S channel. For the case where there is
+	one interrupt per channel, the interrupts should be listed
+	in ascending channel order
+
+Example:
+
+i2s_out: i2s-out@18100A00 {
+	compatible = "img,i2s-out";
+	reg = <0x18100A00 0x200>;
+	interrupts = <GIC_SHARED 13 IRQ_TYPE_LEVEL_HIGH>;
+	dmas = <&mdc 23 0xffffffff 0>;
+	dma-names = "tx";
+	clocks = <&cr_periph SYS_CLK_I2S_OUT>,
+		 <&clk_core CLK_I2S>;
+	clock-names = "sys", "ref";
+	img,i2s-channels = <6>;
+	resets = <&pistachio_reset PISTACHIO_RESET_I2S_OUT>;
+	reset-names = "rst";
+	#sound-dai-cells = <0>;
+};

Documentation/devicetree/bindings/sound/img,parallel-out.txt

+Imagination Technologies Parallel Output Controller
+
+Required Properties:
+
+  - compatible : Compatible list, must contain "img,parallel-out".
+
+  - #sound-dai-cells : Must be equal to 0
+
+  - reg : Offset and length of the register set for the device.
+
+  - dmas: Contains an entry for each entry in dma-names.
+
+  - dma-names: Must include the following entry:
+	"tx"
+
+  - clocks : Contains an entry for each entry in clock-names.
+
+  - clock-names : Includes the following entries:
+	"sys"	The system clock
+	"ref"	The reference clock
+
+  - resets: Contains a phandle to the parallel out reset signal
+
+  - reset-names: Contains the reset signal name "rst"
+
+Optional Properties:
+
+  - interrupts : Contains the parallel out interrupt, if present
+
+Example:
+
+parallel_out: parallel-out@18100C00 {
+	compatible = "img,parallel-out";
+	reg = <0x18100C00 0x100>;
+	interrupts = <GIC_SHARED 19 IRQ_TYPE_LEVEL_HIGH>;
+	dmas = <&mdc 16 0xffffffff 0>;
+	dma-names = "tx";
+	clocks = <&cr_periph SYS_CLK_PAUD_OUT>,
+		 <&clk_core CLK_AUDIO_DAC>;
+	clock-names = "sys", "ref";
+	resets = <&pistachio_reset PISTACHIO_RESET_PRL_OUT>;
+	reset-names = "rst";
+	#sound-dai-cells = <0>;
+};

Documentation/devicetree/bindings/sound/img,pistachio-internal-dac.txt

+Pistachio internal DAC DT bindings
+
+Required properties:
+
+  - compatible: "img,pistachio-internal-dac"
+
+  - img,cr-top : Must contain a phandle to the top level control syscon
+		 node which contains the internal dac control registers
+
+  - VDD-supply : Digital power supply regulator (+1.8V or +3.3V)
+
+Examples:
+
+internal_dac: internal-dac {
+	compatible = "img,pistachio-internal-dac";
+	img,cr-top = <&cr_top>;
+	VDD-supply = <&supply3v3>;
+};

Documentation/devicetree/bindings/sound/img,spdif-in.txt

+Imagination Technologies SPDIF Input Controller
+
+Required Properties:
+
+  - compatible : Compatible list, must contain "img,spdif-in"
+
+  - #sound-dai-cells : Must be equal to 0
+
+  - reg : Offset and length of the register set for the device
+
+  - dmas: Contains an entry for each entry in dma-names.
+
+  - dma-names: Must include the following entry:
+	"rx"
+
+  - clocks : Contains an entry for each entry in clock-names
+
+  - clock-names : Includes the following entries:
+	"sys"	The system clock
+
+Optional Properties:
+
+  - resets: Should contain a phandle to the spdif in reset signal, if any
+
+  - reset-names: Should contain the reset signal name "rst", if a
+	reset phandle is given
+
+  - interrupts : Contains the spdif in interrupt, if present
+
+Example:
+
+spdif_in: spdif-in@18100E00 {
+	compatible = "img,spdif-in";
+	reg = <0x18100E00 0x100>;
+	interrupts = <GIC_SHARED 20 IRQ_TYPE_LEVEL_HIGH>;
+	dmas = <&mdc 15 0xffffffff 0>;
+	dma-names = "rx";
+	clocks = <&cr_periph SYS_CLK_SPDIF_IN>;
+	clock-names = "sys";
+	#sound-dai-cells = <0>;
+};

Documentation/devicetree/bindings/sound/img,spdif-out.txt

+Imagination Technologies SPDIF Output Controller
+
+Required Properties:
+
+  - compatible : Compatible list, must contain "img,spdif-out"
+
+  - #sound-dai-cells : Must be equal to 0
+
+  - reg : Offset and length of the register set for the device
+
+  - dmas: Contains an entry for each entry in dma-names.
+
+  - dma-names: Must include the following entry:
+	"tx"
+
+  - clocks : Contains an entry for each entry in clock-names.
+
+  - clock-names : Includes the following entries:
+	"sys"	The system clock
+	"ref"	The reference clock
+
+  - resets: Contains a phandle to the spdif out reset signal
+
+  - reset-names: Contains the reset signal name "rst"
+
+Optional Properties:
+
+  - interrupts : Contains the parallel out interrupt, if present
+
+Example:
+
+spdif_out: spdif-out@18100D00 {
+	compatible = "img,spdif-out";
+	reg = <0x18100D00 0x100>;
+	interrupts = <GIC_SHARED 21 IRQ_TYPE_LEVEL_HIGH>;
+	dmas = <&mdc 14 0xffffffff 0>;
+	dma-names = "tx";
+	clocks = <&cr_periph SYS_CLK_SPDIF_OUT>,
+		 <&clk_core CLK_SPDIF>;
+	clock-names = "sys", "ref";
+	resets = <&pistachio_reset PISTACHIO_RESET_SPDIF_OUT>;
+	reset-names = "rst";
+	#sound-dai-cells = <0>;
+};

Documentation/sound/alsa/img,spdif-in.txt

+The Imagination Technologies SPDIF Input controller contains the following
+controls:
+
+name='IEC958 Capture Mask',index=0
+
+This control returns a mask that shows which of the IEC958 status bits
+can be read using the 'IEC958 Capture Default' control.
+
+name='IEC958 Capture Default',index=0
+
+This control returns the status bits contained within the SPDIF stream that
+is being received. The 'IEC958 Capture Mask' shows which bits can be read
+from this control.
+
+name='SPDIF In Multi Frequency Acquire',index=0
+name='SPDIF In Multi Frequency Acquire',index=1
+name='SPDIF In Multi Frequency Acquire',index=2
+name='SPDIF In Multi Frequency Acquire',index=3
+
+This control is used to attempt acquisition of up to four different sample
+rates. The active rate can be obtained by reading the 'SPDIF In Lock Frequency'
+control.
+
+When the value of this control is set to {0,0,0,0}, the rate given to hw_params
+will determine the single rate the block will capture. Else, the rate given to
+hw_params will be ignored, and the block will attempt capture for each of the
+four sample rates set here.
+
+If less than four rates are required, the same rate can be specified more than
+once
+
+name='SPDIF In Lock Frequency',index=0
+
+This control returns the active capture rate, or 0 if a lock has not been
+acquired
+
+name='SPDIF In Lock TRK',index=0
+
+This control is used to modify the locking/jitter rejection characteristics
+of the block. Larger values increase the locking range, but reduce jitter
+rejection.
+
+name='SPDIF In Lock Acquire Threshold',index=0
+
+This control is used to change the threshold at which a lock is acquired.
+
+name='SPDIF In Lock Release Threshold',index=0
+
+This control is used to change the threshold at which a lock is released.

arch/x86/include/asm/platform_sst_audio.h

@@ -55,6 +55,7 @@ enum sst_audio_device_id_mrfld {
 	PIPE_MEDIA0_IN = 0x8F,
 	PIPE_MEDIA1_IN = 0x90,
 	PIPE_MEDIA2_IN = 0x91,
+	PIPE_MEDIA3_IN = 0x9C,
 	PIPE_RSVD = 0xFF,
 };
 

include/sound/hdaudio_ext.h

@@ -186,9 +186,15 @@ struct hdac_ext_device {
 	/* codec ops */
 	struct hdac_ext_codec_ops ops;
 
+	struct snd_card *card;
+	void *scodec;
 	void *private_data;
 };
 
+struct hdac_ext_dma_params {
+	u32 format;
+	u8 stream_tag;
+};
 #define to_ehdac_device(dev) (container_of((dev), \
 				 struct hdac_ext_device, hdac))
 /*

sound/soc/Kconfig

@@ -50,6 +50,7 @@ source "sound/soc/jz4740/Kconfig"
 source "sound/soc/nuc900/Kconfig"
 source "sound/soc/omap/Kconfig"
 source "sound/soc/kirkwood/Kconfig"
+source "sound/soc/img/Kconfig"
 source "sound/soc/intel/Kconfig"
 source "sound/soc/mediatek/Kconfig"
 source "sound/soc/mxs/Kconfig"

sound/soc/Makefile

@@ -27,6 +27,7 @@ obj-$(CONFIG_SND_SOC)	+= davinci/
 obj-$(CONFIG_SND_SOC)	+= dwc/
 obj-$(CONFIG_SND_SOC)	+= fsl/
 obj-$(CONFIG_SND_SOC)	+= jz4740/
+obj-$(CONFIG_SND_SOC)	+= img/
 obj-$(CONFIG_SND_SOC)	+= intel/
 obj-$(CONFIG_SND_SOC)	+= mediatek/
 obj-$(CONFIG_SND_SOC)	+= mxs/

sound/soc/codecs/Kconfig

@@ -68,6 +68,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_ES8328_SPI if SPI_MASTER
 	select SND_SOC_ES8328_I2C if I2C
 	select SND_SOC_GTM601
+	select SND_SOC_HDAC_HDMI
 	select SND_SOC_ICS43432
 	select SND_SOC_ISABELLE if I2C
 	select SND_SOC_JZ4740_CODEC
@@ -483,6 +484,11 @@ config SND_SOC_ES8328_SPI
 config SND_SOC_GTM601
 	tristate 'GTM601 UMTS modem audio codec'
 
+config SND_SOC_HDAC_HDMI
+	tristate
+	select SND_HDA_EXT_CORE
+	select HDMI
+
 config SND_SOC_ICS43432
 	tristate
 

sound/soc/codecs/Makefile

@@ -61,6 +61,7 @@ snd-soc-es8328-objs := es8328.o
 snd-soc-es8328-i2c-objs := es8328-i2c.o
 snd-soc-es8328-spi-objs := es8328-spi.o
 snd-soc-gtm601-objs := gtm601.o
+snd-soc-hdac-hdmi-objs := hdac_hdmi.o
 snd-soc-ics43432-objs := ics43432.o
 snd-soc-isabelle-objs := isabelle.o
 snd-soc-jz4740-codec-objs := jz4740.o
@@ -261,6 +262,7 @@ obj-$(CONFIG_SND_SOC_ES8328)	+= snd-soc-es8328.o
 obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o
 obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o
 obj-$(CONFIG_SND_SOC_GTM601)    += snd-soc-gtm601.o
+obj-$(CONFIG_SND_SOC_HDAC_HDMI) += snd-soc-hdac-hdmi.o
 obj-$(CONFIG_SND_SOC_ICS43432)	+= snd-soc-ics43432.o
 obj-$(CONFIG_SND_SOC_ISABELLE)	+= snd-soc-isabelle.o
 obj-$(CONFIG_SND_SOC_JZ4740_CODEC)	+= snd-soc-jz4740-codec.o

sound/soc/codecs/hdac_hdmi.c

+/*
+ *  hdac_hdmi.c - ASoc HDA-HDMI codec driver for Intel platforms
+ *
+ *  Copyright (C) 2014-2015 Intel Corp
+ *  Author: Samreen Nilofer <samreen.nilofer@intel.com>
+ *	    Subhransu S. Prusty <subhransu.s.prusty@intel.com>
+ *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; version 2 of the License.
+ *
+ *  This program is distributed in the hope that it will be useful, but
+ *  WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  General Public License for more details.
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ */
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/hdmi.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/hdaudio_ext.h>
+#include <sound/hda_i915.h>
+#include "../../hda/local.h"
+
+#define AMP_OUT_MUTE		0xb080
+#define AMP_OUT_UNMUTE		0xb000
+#define PIN_OUT			(AC_PINCTL_OUT_EN)
+
+#define HDA_MAX_CONNECTIONS     32
+
+struct hdac_hdmi_cvt_params {
+	unsigned int channels_min;
+	unsigned int channels_max;
+	u32 rates;
+	u64 formats;
+	unsigned int maxbps;
+};
+
+struct hdac_hdmi_cvt {
+	hda_nid_t nid;
+	struct hdac_hdmi_cvt_params params;
+};
+
+struct hdac_hdmi_pin {
+	hda_nid_t nid;
+	int num_mux_nids;
+	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
+};
+
+struct hdac_hdmi_dai_pin_map {
+	int dai_id;
+	struct hdac_hdmi_pin pin;
+	struct hdac_hdmi_cvt cvt;
+};
+
+struct hdac_hdmi_priv {
+	hda_nid_t pin_nid[3];
+	hda_nid_t cvt_nid[3];
+	struct hdac_hdmi_dai_pin_map dai_map[3];
+};
+
+static inline struct hdac_ext_device *to_hda_ext_device(struct device *dev)
+{
+	struct hdac_device *hdac = container_of(dev, struct hdac_device, dev);
+
+	return container_of(hdac, struct hdac_ext_device, hdac);
+}
+
+static int hdac_hdmi_setup_stream(struct hdac_ext_device *hdac,
+				hda_nid_t cvt_nid, hda_nid_t pin_nid,
+				u32 stream_tag, int format)
+{
+	unsigned int val;
+
+	dev_dbg(&hdac->hdac.dev, "cvt nid %d pnid %d stream %d format 0x%x\n",
+			cvt_nid, pin_nid, stream_tag, format);
+
+	val = (stream_tag << 4);
+
+	snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0,
+				AC_VERB_SET_CHANNEL_STREAMID, val);
+	snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0,
+				AC_VERB_SET_STREAM_FORMAT, format);
+
+	return 0;
+}
+
+static void
+hdac_hdmi_set_dip_index(struct hdac_ext_device *hdac, hda_nid_t pin_nid,
+				int packet_index, int byte_index)
+{
+	int val;
+
+	val = (packet_index << 5) | (byte_index & 0x1f);
+
+	snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+				AC_VERB_SET_HDMI_DIP_INDEX, val);
+}
+
+static int hdac_hdmi_setup_audio_infoframe(struct hdac_ext_device *hdac,
+				hda_nid_t cvt_nid, hda_nid_t pin_nid)
+{
+	uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
+	struct hdmi_audio_infoframe frame;
+	u8 *dip = (u8 *)&frame;
+	int ret;
+	int i;
+
+	hdmi_audio_infoframe_init(&frame);
+
+	/* Default stereo for now */
+	frame.channels = 2;
+
+	/* setup channel count */
+	snd_hdac_codec_write(&hdac->hdac, cvt_nid, 0,
+			    AC_VERB_SET_CVT_CHAN_COUNT, frame.channels - 1);
+
+	ret = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
+	if (ret < 0)
+		return ret;
+
+	/* stop infoframe transmission */
+	hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
+	snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+			AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_DISABLE);
+
+
+	/*  Fill infoframe. Index auto-incremented */
+	hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
+	for (i = 0; i < sizeof(frame); i++)
+		snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+				AC_VERB_SET_HDMI_DIP_DATA, dip[i]);
+
+	/* Start infoframe */
+	hdac_hdmi_set_dip_index(hdac, pin_nid, 0x0, 0x0);
+	snd_hdac_codec_write(&hdac->hdac, pin_nid, 0,
+			AC_VERB_SET_HDMI_DIP_XMIT, AC_DIPXMIT_BEST);
+
+	return 0;
+}
+
+static void hdac_hdmi_set_power_state(struct hdac_ext_device *edev,
+		struct hdac_hdmi_dai_pin_map *dai_map, unsigned int pwr_state)
+{
+	/* Power up pin widget */
+	if (!snd_hdac_check_power_state(&edev->hdac, dai_map->pin.nid, pwr_state))
+		snd_hdac_codec_write(&edev->hdac, dai_map->pin.nid, 0,
+			AC_VERB_SET_POWER_STATE, pwr_state);
+
+	/* Power up converter */
+	if (!snd_hdac_check_power_state(&edev->hdac, dai_map->cvt.nid, pwr_state))
+		snd_hdac_codec_write(&edev->hdac, dai_map->cvt.nid, 0,
+			AC_VERB_SET_POWER_STATE, pwr_state);
+}
+
+static int hdac_hdmi_playback_prepare(struct snd_pcm_substream *substream,
+				struct snd_soc_dai *dai)
+{
+	struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
+	struct hdac_hdmi_priv *hdmi = hdac->private_data;
+	struct hdac_hdmi_dai_pin_map *dai_map;
+	struct hdac_ext_dma_params *dd;
+	int ret;
+
+	if (dai->id > 0) {
+		dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n");
+		return -ENODEV;
+	}
+
+	dai_map = &hdmi->dai_map[dai->id];
+
+	dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream);
+	dev_dbg(&hdac->hdac.dev, "stream tag from cpu dai %d format in cvt 0x%x\n",
+			dd->stream_tag,	dd->format);
+
+	ret = hdac_hdmi_setup_audio_infoframe(hdac, dai_map->cvt.nid,
+						dai_map->pin.nid);
+	if (ret < 0)
+		return ret;
+
+	return hdac_hdmi_setup_stream(hdac, dai_map->cvt.nid, dai_map->pin.nid,
+					dd->stream_tag, dd->format);
+}
+
+static int hdac_hdmi_set_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *hparams, struct snd_soc_dai *dai)
+{
+	struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
+	struct hdac_ext_dma_params *dd;
+
+	if (dai->id > 0) {
+		dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n");
+		return -ENODEV;
+	}
+
+	dd = kzalloc(sizeof(*dd), GFP_KERNEL);
+	if (!dd)
+		return -ENOMEM;
+	dd->format = snd_hdac_calc_stream_format(params_rate(hparams),
+			params_channels(hparams), params_format(hparams),
+			24, 0);
+
+	snd_soc_dai_set_dma_data(dai, substream, (void *)dd);
+
+	return 0;
+}
+
+static int hdac_hdmi_playback_cleanup(struct snd_pcm_substream *substream,
+		struct snd_soc_dai *dai)
+{
+	struct hdac_ext_device *edev = snd_soc_dai_get_drvdata(dai);
+	struct hdac_ext_dma_params *dd;
+	struct hdac_hdmi_priv *hdmi = edev->private_data;
+	struct hdac_hdmi_dai_pin_map *dai_map;
+
+	dai_map = &hdmi->dai_map[dai->id];
+
+	snd_hdac_codec_write(&edev->hdac, dai_map->cvt.nid, 0,
+				AC_VERB_SET_CHANNEL_STREAMID, 0);
+	snd_hdac_codec_write(&edev->hdac, dai_map->cvt.nid, 0,
+				AC_VERB_SET_STREAM_FORMAT, 0);
+
+	dd = (struct hdac_ext_dma_params *)snd_soc_dai_get_dma_data(dai, substream);
+	snd_soc_dai_set_dma_data(dai, substream, NULL);
+
+	kfree(dd);
+
+	return 0;
+}
+
+static int hdac_hdmi_pcm_open(struct snd_pcm_substream *substream,
+			struct snd_soc_dai *dai)
+{
+	struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
+	struct hdac_hdmi_priv *hdmi = hdac->private_data;
+	struct hdac_hdmi_dai_pin_map *dai_map;
+	int val;
+
+	if (dai->id > 0) {
+		dev_err(&hdac->hdac.dev, "Only one dai supported as of now\n");
+		return -ENODEV;
+	}
+
+	dai_map = &hdmi->dai_map[dai->id];
+
+	val = snd_hdac_codec_read(&hdac->hdac, dai_map->pin.nid, 0,
+					AC_VERB_GET_PIN_SENSE, 0);
+	dev_info(&hdac->hdac.dev, "Val for AC_VERB_GET_PIN_SENSE: %x\n", val);
+
+	if ((!(val & AC_PINSENSE_PRESENCE)) || (!(val & AC_PINSENSE_ELDV))) {
+		dev_err(&hdac->hdac.dev, "Monitor presence invalid with val: %x\n", val);
+		return -ENODEV;
+	}
+
+	hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D0);
+
+	snd_hdac_codec_write(&hdac->hdac, dai_map->pin.nid, 0,
+			AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_UNMUTE);
+
+	snd_pcm_hw_constraint_step(substream->runtime, 0,
+				   SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+
+	return 0;
+}
+
+static void hdac_hdmi_pcm_close(struct snd_pcm_substream *substream,
+		struct snd_soc_dai *dai)
+{
+	struct hdac_ext_device *hdac = snd_soc_dai_get_drvdata(dai);
+	struct hdac_hdmi_priv *hdmi = hdac->private_data;
+	struct hdac_hdmi_dai_pin_map *dai_map;
+
+	dai_map = &hdmi->dai_map[dai->id];
+
+	hdac_hdmi_set_power_state(hdac, dai_map, AC_PWRST_D3);
+
+	snd_hdac_codec_write(&hdac->hdac, dai_map->pin.nid, 0,
+			AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
+}
+
+static int
+hdac_hdmi_query_cvt_params(struct hdac_device *hdac, struct hdac_hdmi_cvt *cvt)
+{
+	int err;
+
+	/* Only stereo supported as of now */
+	cvt->params.channels_min = cvt->params.channels_max = 2;
+
+	err = snd_hdac_query_supported_pcm(hdac, cvt->nid,
+			&cvt->params.rates,
+			&cvt->params.formats,
+			&cvt->params.maxbps);
+	if (err < 0)
+		dev_err(&hdac->dev,
+			"Failed to query pcm params for nid %d: %d\n",
+			cvt->nid, err);
+
+	return err;
+}
+
+static int hdac_hdmi_query_pin_connlist(struct hdac_ext_device *hdac,
+					struct hdac_hdmi_pin *pin)
+{
+	if (!(get_wcaps(&hdac->hdac, pin->nid) & AC_WCAP_CONN_LIST)) {
+		dev_warn(&hdac->hdac.dev,
+			"HDMI: pin %d wcaps %#x does not support connection list\n",
+			pin->nid, get_wcaps(&hdac->hdac, pin->nid));
+		return -EINVAL;
+	}
+
+	pin->num_mux_nids = snd_hdac_get_connections(&hdac->hdac, pin->nid,
+			pin->mux_nids, HDA_MAX_CONNECTIONS);
+	if (pin->num_mux_nids == 0) {
+		dev_err(&hdac->hdac.dev, "No connections found\n");
+		return -ENODEV;
+	}
+
+	return pin->num_mux_nids;
+}
+
+static void hdac_hdmi_fill_widget_info(struct snd_soc_dapm_widget *w,
+				enum snd_soc_dapm_type id,
+				const char *wname, const char *stream)
+{
+	w->id = id;
+	w->name = wname;
+	w->sname = stream;
+	w->reg = SND_SOC_NOPM;
+	w->shift = 0;
+	w->kcontrol_news = NULL;
+	w->num_kcontrols = 0;
+	w->priv = NULL;
+}
+
+static void hdac_hdmi_fill_route(struct snd_soc_dapm_route *route,
+		const char *sink, const char *control, const char *src)
+{
+	route->sink = sink;
+	route->source = src;
+	route->control = control;
+	route->connected = NULL;
+}
+
+static void create_fill_widget_route_map(struct snd_soc_dapm_context *dapm,
+					struct hdac_hdmi_dai_pin_map *dai_map)
+{
+	struct snd_soc_dapm_route route[1];
+	struct snd_soc_dapm_widget widgets[2] = { {0} };
+
+	memset(&route, 0, sizeof(route));
+
+	hdac_hdmi_fill_widget_info(&widgets[0], snd_soc_dapm_output,
+			"hif1 Output", NULL);
+	hdac_hdmi_fill_widget_info(&widgets[1], snd_soc_dapm_aif_in,
+			"Coverter 1", "hif1");
+
+	hdac_hdmi_fill_route(&route[0], "hif1 Output", NULL, "Coverter 1");
+
+	snd_soc_dapm_new_controls(dapm, widgets, ARRAY_SIZE(widgets));
+	snd_soc_dapm_add_routes(dapm, route, ARRAY_SIZE(route));
+}
+
+static int hdac_hdmi_init_dai_map(struct hdac_ext_device *edev,
+			struct hdac_hdmi_dai_pin_map *dai_map,
+			hda_nid_t pin_nid, hda_nid_t cvt_nid, int dai_id)
+{
+	int ret;
+
+	dai_map->dai_id = dai_id;
+	dai_map->pin.nid = pin_nid;
+
+	ret = hdac_hdmi_query_pin_connlist(edev, &dai_map->pin);
+	if (ret < 0) {
+		dev_err(&edev->hdac.dev,
+			"Error querying connection list: %d\n", ret);
+		return ret;
+	}
+
+	dai_map->cvt.nid = cvt_nid;
+
+	/* Enable out path for this pin widget */
+	snd_hdac_codec_write(&edev->hdac, pin_nid, 0,
+			AC_VERB_SET_PIN_WIDGET_CONTROL, PIN_OUT);
+
+	/* Enable transmission */
+	snd_hdac_codec_write(&edev->hdac, cvt_nid, 0,
+			AC_VERB_SET_DIGI_CONVERT_1, 1);
+
+	/* Category Code (CC) to zero */
+	snd_hdac_codec_write(&edev->hdac, cvt_nid, 0,
+			AC_VERB_SET_DIGI_CONVERT_2, 0);
+
+	snd_hdac_codec_write(&edev->hdac, pin_nid, 0,
+			AC_VERB_SET_CONNECT_SEL, 0);
+
+	return hdac_hdmi_query_cvt_params(&edev->hdac, &dai_map->cvt);
+}
+
+/*
+ * Parse all nodes and store the cvt/pin nids in array
+ * Add one time initialization for pin and cvt widgets
+ */
+static int hdac_hdmi_parse_and_map_nid(struct hdac_ext_device *edev)
+{
+	hda_nid_t nid;
+	int i, num_nodes;
+	struct hdac_device *hdac = &edev->hdac;
+	struct hdac_hdmi_priv *hdmi = edev->private_data;
+	int cvt_nid = 0, pin_nid = 0;
+
+	num_nodes = snd_hdac_get_sub_nodes(hdac, hdac->afg, &nid);
+	if (!nid || num_nodes < 0) {
+		dev_warn(&hdac->dev, "HDMI: failed to get afg sub nodes\n");
+		return -EINVAL;
+	}
+
+	hdac->num_nodes = num_nodes;
+	hdac->start_nid = nid;
+
+	for (i = 0; i < hdac->num_nodes; i++, nid++) {
+		unsigned int caps;
+		unsigned int type;
+
+		caps = get_wcaps(hdac, nid);
+		type = get_wcaps_type(caps);
+
+		if (!(caps & AC_WCAP_DIGITAL))
+			continue;
+
+		switch (type) {
+
+		case AC_WID_AUD_OUT:
+			hdmi->cvt_nid[cvt_nid] = nid;
+			cvt_nid++;
+			break;
+
+		case AC_WID_PIN:
+			hdmi->pin_nid[pin_nid] = nid;
+			pin_nid++;
+			break;
+		}
+	}
+
+	hdac->end_nid = nid;
+
+	if (!pin_nid || !cvt_nid)
+		return -EIO;
+
+	/*
+	 * Currently on board only 1 pin and 1 converter is enabled for
+	 * simplification, more will be added eventually
+	 * So using fixed map for dai_id:pin:cvt
+	 */
+	return hdac_hdmi_init_dai_map(edev, &hdmi->dai_map[0], hdmi->pin_nid[0],
+			hdmi->cvt_nid[0], 0);
+}
+
+static int hdmi_codec_probe(struct snd_soc_codec *codec)
+{
+	struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
+	struct hdac_hdmi_priv *hdmi = edev->private_data;
+	struct snd_soc_dapm_context *dapm =
+		snd_soc_component_get_dapm(&codec->component);
+
+	edev->scodec = codec;
+
+	create_fill_widget_route_map(dapm, &hdmi->dai_map[0]);
+
+	/* Imp: Store the card pointer in hda_codec */
+	edev->card = dapm->card->snd_card;
+
+	/*
+	 * hdac_device core already sets the state to active and calls
+	 * get_noresume. So enable runtime and set the device to suspend.
+	 */
+	pm_runtime_enable(&edev->hdac.dev);
+	pm_runtime_put(&edev->hdac.dev);
+	pm_runtime_suspend(&edev->hdac.dev);
+
+	return 0;
+}
+
+static int hdmi_codec_remove(struct snd_soc_codec *codec)
+{
+	struct hdac_ext_device *edev = snd_soc_codec_get_drvdata(codec);
+
+	pm_runtime_disable(&edev->hdac.dev);
+	return 0;
+}
+
+static struct snd_soc_codec_driver hdmi_hda_codec = {
+	.probe		= hdmi_codec_probe,
+	.remove		= hdmi_codec_remove,
+	.idle_bias_off	= true,
+};
+
+static struct snd_soc_dai_ops hdmi_dai_ops = {
+	.startup = hdac_hdmi_pcm_open,
+	.shutdown = hdac_hdmi_pcm_close,
+	.hw_params = hdac_hdmi_set_hw_params,
+	.prepare = hdac_hdmi_playback_prepare,
+	.hw_free = hdac_hdmi_playback_cleanup,
+};
+
+static struct snd_soc_dai_driver hdmi_dais[] = {
+	{	.name = "intel-hdmi-hif1",
+		.playback = {
+			.stream_name = "hif1",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_32000 |
+				SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
+				SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000 |
+				SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000,
+			.formats = SNDRV_PCM_FMTBIT_S16_LE |
+				SNDRV_PCM_FMTBIT_S20_3LE |
+				SNDRV_PCM_FMTBIT_S24_LE |
+				SNDRV_PCM_FMTBIT_S32_LE,
+
+		},
+		.ops = &hdmi_dai_ops,
+	},
+};
+
+static int hdac_hdmi_dev_probe(struct hdac_ext_device *edev)
+{
+	struct hdac_device *codec = &edev->hdac;
+	struct hdac_hdmi_priv *hdmi_priv;
+	int ret = 0;
+
+	hdmi_priv = devm_kzalloc(&codec->dev, sizeof(*hdmi_priv), GFP_KERNEL);
+	if (hdmi_priv == NULL)
+		return -ENOMEM;
+
+	edev->private_data = hdmi_priv;
+
+	dev_set_drvdata(&codec->dev, edev);
+
+	ret = hdac_hdmi_parse_and_map_nid(edev);
+	if (ret < 0)
+		return ret;
+
+	/* ASoC specific initialization */
+	return snd_soc_register_codec(&codec->dev, &hdmi_hda_codec,
+			hdmi_dais, ARRAY_SIZE(hdmi_dais));
+}
+
+static int hdac_hdmi_dev_remove(struct hdac_ext_device *edev)
+{
+	snd_soc_unregister_codec(&edev->hdac.dev);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int hdac_hdmi_runtime_suspend(struct device *dev)
+{
+	struct hdac_ext_device *edev = to_hda_ext_device(dev);
+	struct hdac_device *hdac = &edev->hdac;
+	struct hdac_bus *bus = hdac->bus;
+	int err;
+
+	dev_dbg(dev, "Enter: %s\n", __func__);
+
+	/* controller may not have been initialized for the first time */
+	if (!bus)
+		return 0;
+
+	/* Power down afg */
+	if (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D3))
+		snd_hdac_codec_write(hdac, hdac->afg, 0,
+			AC_VERB_SET_POWER_STATE, AC_PWRST_D3);
+
+	err = snd_hdac_display_power(bus, false);
+	if (err < 0) {
+		dev_err(bus->dev, "Cannot turn on display power on i915\n");
+		return err;
+	}
+
+	return 0;
+}
+
+static int hdac_hdmi_runtime_resume(struct device *dev)
+{
+	struct hdac_ext_device *edev = to_hda_ext_device(dev);
+	struct hdac_device *hdac = &edev->hdac;
+	struct hdac_bus *bus = hdac->bus;
+	int err;
+
+	dev_dbg(dev, "Enter: %s\n", __func__);
+
+	/* controller may not have been initialized for the first time */
+	if (!bus)
+		return 0;
+
+	err = snd_hdac_display_power(bus, true);
+	if (err < 0) {
+		dev_err(bus->dev, "Cannot turn on display power on i915\n");
+		return err;
+	}
+
+	/* Power up afg */
+	if (!snd_hdac_check_power_state(hdac, hdac->afg, AC_PWRST_D0))
+		snd_hdac_codec_write(hdac, hdac->afg, 0,
+			AC_VERB_SET_POWER_STATE, AC_PWRST_D0);
+
+	return 0;
+}
+#else
+#define hdac_hdmi_runtime_suspend NULL
+#define hdac_hdmi_runtime_resume NULL
+#endif
+
+static const struct dev_pm_ops hdac_hdmi_pm = {
+	SET_RUNTIME_PM_OPS(hdac_hdmi_runtime_suspend, hdac_hdmi_runtime_resume, NULL)
+};
+
+static const struct hda_device_id hdmi_list[] = {
+	HDA_CODEC_EXT_ENTRY(0x80862809, 0x100000, "Skylake HDMI", 0),
+	{}
+};
+
+MODULE_DEVICE_TABLE(hdaudio, hdmi_list);
+
+static struct hdac_ext_driver hdmi_driver = {
+	. hdac = {
+		.driver = {
+			.name   = "HDMI HDA Codec",
+			.pm = &hdac_hdmi_pm,
+		},
+		.id_table       = hdmi_list,
+	},
+	.probe          = hdac_hdmi_dev_probe,
+	.remove         = hdac_hdmi_dev_remove,
+};
+
+static int __init hdmi_init(void)
+{
+	return snd_hda_ext_driver_register(&hdmi_driver);
+}
+
+static void __exit hdmi_exit(void)
+{
+	snd_hda_ext_driver_unregister(&hdmi_driver);
+}
+
+module_init(hdmi_init);
+module_exit(hdmi_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("HDMI HD codec");
+MODULE_AUTHOR("Samreen Nilofer<samreen.nilofer@intel.com>");
+MODULE_AUTHOR("Subhransu S. Prusty<subhransu.s.prusty@intel.com>");

sound/soc/fsl/fsl_spdif.c

@@ -88,6 +88,7 @@ struct spdif_mixer_control {
  * @rxclk: rx clock sources for capture
  * @coreclk: core clock for register access via DMA
  * @sysclk: system clock for rx clock rate measurement
+ * @spbaclk: SPBA clock (optional, depending on SoC design)
  * @dma_params_tx: DMA parameters for transmit channel
  * @dma_params_rx: DMA parameters for receive channel
  */
@@ -106,6 +107,7 @@ struct fsl_spdif_priv {
 	struct clk *rxclk;
 	struct clk *coreclk;
 	struct clk *sysclk;
+	struct clk *spbaclk;
 	struct snd_dmaengine_dai_dma_data dma_params_tx;
 	struct snd_dmaengine_dai_dma_data dma_params_rx;
 	/* regcache for SRPC */
@@ -474,6 +476,14 @@ static int fsl_spdif_startup(struct snd_pcm_substream *substream,
 			return ret;
 		}
 
+		if (!IS_ERR(spdif_priv->spbaclk)) {
+			ret = clk_prepare_enable(spdif_priv->spbaclk);
+			if (ret) {
+				dev_err(&pdev->dev, "failed to enable spba clock\n");
+				goto err_spbaclk;
+			}
+		}
+
 		ret = spdif_softreset(spdif_priv);
 		if (ret) {
 			dev_err(&pdev->dev, "failed to soft reset\n");
@@ -515,6 +525,9 @@ static int fsl_spdif_startup(struct snd_pcm_substream *substream,
 	for (i--; i >= 0; i--)
 		clk_disable_unprepare(spdif_priv->txclk[i]);
 err:
+	if (!IS_ERR(spdif_priv->spbaclk))
+		clk_disable_unprepare(spdif_priv->spbaclk);
+err_spbaclk:
 	clk_disable_unprepare(spdif_priv->coreclk);
 
 	return ret;
@@ -548,6 +561,8 @@ static void fsl_spdif_shutdown(struct snd_pcm_substream *substream,
 		spdif_intr_status_clear(spdif_priv);
 		regmap_update_bits(regmap, REG_SPDIF_SCR,
 				SCR_LOW_POWER, SCR_LOW_POWER);
+		if (!IS_ERR(spdif_priv->spbaclk))
+			clk_disable_unprepare(spdif_priv->spbaclk);
 		clk_disable_unprepare(spdif_priv->coreclk);
 	}
 }
@@ -1261,6 +1276,10 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 		return PTR_ERR(spdif_priv->coreclk);
 	}
 
+	spdif_priv->spbaclk = devm_clk_get(&pdev->dev, "spba");
+	if (IS_ERR(spdif_priv->spbaclk))
+		dev_warn(&pdev->dev, "no spba clock in devicetree\n");
+
 	/* Select clock source for rx/tx clock */
 	spdif_priv->rxclk = devm_clk_get(&pdev->dev, "rxtx1");
 	if (IS_ERR(spdif_priv->rxclk)) {

sound/soc/img/Kconfig

+config SND_SOC_IMG
+	bool "Audio support for Imagination Technologies designs"
+	help
+	  Audio support for Imagination Technologies audio hardware
+
+config SND_SOC_IMG_I2S_IN
+	tristate "Imagination I2S Input Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for I2S in driver for
+	  Imagination Technologies I2S in device.
+
+config SND_SOC_IMG_I2S_OUT
+	tristate "Imagination I2S Output Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for I2S out driver for
+	  Imagination Technologies I2S out device.
+
+config SND_SOC_IMG_PARALLEL_OUT
+	tristate "Imagination Parallel Output Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for parallel out driver for
+	  Imagination Technologies parallel out device.
+
+config SND_SOC_IMG_SPDIF_IN
+	tristate "Imagination SPDIF Input Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for SPDIF input driver for
+	  Imagination Technologies SPDIF input device.
+
+config SND_SOC_IMG_SPDIF_OUT
+	tristate "Imagination SPDIF Output Device Driver"
+	depends on SND_SOC_IMG
+	select SND_SOC_GENERIC_DMAENGINE_PCM
+	help
+	  Say Y or M if you want to add support for SPDIF out driver for
+	  Imagination Technologies SPDIF out device.
+
+
+config SND_SOC_IMG_PISTACHIO_INTERNAL_DAC
+	tristate "Support for Pistachio SoC Internal DAC Driver"
+	depends on SND_SOC_IMG
+	help
+	  Say Y or M if you want to add support for Pistachio internal DAC
+	  driver for Imagination Technologies Pistachio internal DAC device.

sound/soc/img/Makefile

+obj-$(CONFIG_SND_SOC_IMG_I2S_IN) += img-i2s-in.o
+obj-$(CONFIG_SND_SOC_IMG_I2S_OUT) += img-i2s-out.o
+obj-$(CONFIG_SND_SOC_IMG_PARALLEL_OUT) += img-parallel-out.o
+obj-$(CONFIG_SND_SOC_IMG_SPDIF_IN) += img-spdif-in.o
+obj-$(CONFIG_SND_SOC_IMG_SPDIF_OUT) += img-spdif-out.o
+
+obj-$(CONFIG_SND_SOC_IMG_PISTACHIO_INTERNAL_DAC) += pistachio-internal-dac.o

sound/soc/img/img-i2s-in.c

+/*
+ * IMG I2S input controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_I2S_IN_RX_FIFO			0x0
+
+#define IMG_I2S_IN_CTL				0x4
+#define IMG_I2S_IN_CTL_ACTIVE_CHAN_MASK		0xfffffffc
+#define IMG_I2S_IN_CTL_ACTIVE_CH_SHIFT		2
+#define IMG_I2S_IN_CTL_16PACK_MASK		BIT(1)
+#define IMG_I2S_IN_CTL_ME_MASK			BIT(0)
+
+#define IMG_I2S_IN_CH_CTL			0x4
+#define IMG_I2S_IN_CH_CTL_CCDEL_MASK		0x38000
+#define IMG_I2S_IN_CH_CTL_CCDEL_SHIFT		15
+#define IMG_I2S_IN_CH_CTL_FEN_MASK		BIT(14)
+#define IMG_I2S_IN_CH_CTL_FMODE_MASK		BIT(13)
+#define IMG_I2S_IN_CH_CTL_16PACK_MASK		BIT(12)
+#define IMG_I2S_IN_CH_CTL_JUST_MASK		BIT(10)
+#define IMG_I2S_IN_CH_CTL_PACKH_MASK		BIT(9)
+#define IMG_I2S_IN_CH_CTL_CLK_TRANS_MASK	BIT(8)
+#define IMG_I2S_IN_CH_CTL_BLKP_MASK		BIT(7)
+#define IMG_I2S_IN_CH_CTL_FIFO_FLUSH_MASK	BIT(6)
+#define IMG_I2S_IN_CH_CTL_LRD_MASK		BIT(3)
+#define IMG_I2S_IN_CH_CTL_FW_MASK		BIT(2)
+#define IMG_I2S_IN_CH_CTL_SW_MASK		BIT(1)
+#define IMG_I2S_IN_CH_CTL_ME_MASK		BIT(0)
+
+#define IMG_I2S_IN_CH_STRIDE			0x20
+
+struct img_i2s_in {
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	unsigned int max_i2s_chan;
+	void __iomem *channel_base;
+	unsigned int active_channels;
+	struct snd_soc_dai_driver dai_driver;
+};
+
+static inline void img_i2s_in_writel(struct img_i2s_in *i2s, u32 val, u32 reg)
+{
+	writel(val, i2s->base + reg);
+}
+
+static inline u32 img_i2s_in_readl(struct img_i2s_in *i2s, u32 reg)
+{
+	return readl(i2s->base + reg);
+}
+
+static inline void img_i2s_in_ch_writel(struct img_i2s_in *i2s, u32 chan,
+					u32 val, u32 reg)
+{
+	writel(val, i2s->channel_base + (chan * IMG_I2S_IN_CH_STRIDE) + reg);
+}
+
+static inline u32 img_i2s_in_ch_readl(struct img_i2s_in *i2s, u32 chan,
+					u32 reg)
+{
+	return readl(i2s->channel_base + (chan * IMG_I2S_IN_CH_STRIDE) + reg);
+}
+
+static inline void img_i2s_in_ch_disable(struct img_i2s_in *i2s, u32 chan)
+{
+	u32 reg;
+
+	reg = img_i2s_in_ch_readl(i2s, chan, IMG_I2S_IN_CH_CTL);
+	reg &= ~IMG_I2S_IN_CH_CTL_ME_MASK;
+	img_i2s_in_ch_writel(i2s, chan, reg, IMG_I2S_IN_CH_CTL);
+}
+
+static inline void img_i2s_in_ch_enable(struct img_i2s_in *i2s, u32 chan)
+{
+	u32 reg;
+
+	reg = img_i2s_in_ch_readl(i2s, chan, IMG_I2S_IN_CH_CTL);
+	reg |= IMG_I2S_IN_CH_CTL_ME_MASK;
+	img_i2s_in_ch_writel(i2s, chan, reg, IMG_I2S_IN_CH_CTL);
+}
+
+static inline void img_i2s_in_disable(struct img_i2s_in *i2s)
+{
+	u32 reg;
+
+	reg = img_i2s_in_readl(i2s, IMG_I2S_IN_CTL);
+	reg &= ~IMG_I2S_IN_CTL_ME_MASK;
+	img_i2s_in_writel(i2s, reg, IMG_I2S_IN_CTL);
+}
+
+static inline void img_i2s_in_enable(struct img_i2s_in *i2s)
+{
+	u32 reg;
+
+	reg = img_i2s_in_readl(i2s, IMG_I2S_IN_CTL);
+	reg |= IMG_I2S_IN_CTL_ME_MASK;
+	img_i2s_in_writel(i2s, reg, IMG_I2S_IN_CTL);
+}
+
+static inline void img_i2s_in_flush(struct img_i2s_in *i2s)
+{
+	int i;
+	u32 reg;
+
+	for (i = 0; i < i2s->active_channels; i++) {
+		reg = img_i2s_in_ch_readl(i2s, i, IMG_I2S_IN_CH_CTL);
+		reg |= IMG_I2S_IN_CH_CTL_FIFO_FLUSH_MASK;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+		reg &= ~IMG_I2S_IN_CH_CTL_FIFO_FLUSH_MASK;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+	}
+}
+
+static int img_i2s_in_trigger(struct snd_pcm_substream *substream, int cmd,
+	struct snd_soc_dai *dai)
+{
+	struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		img_i2s_in_enable(i2s);
+		break;
+
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		img_i2s_in_disable(i2s);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_i2s_in_check_rate(struct img_i2s_in *i2s,
+		unsigned int sample_rate, unsigned int frame_size,
+		unsigned int *bclk_filter_enable,
+		unsigned int *bclk_filter_value)
+{
+	unsigned int bclk_freq, cur_freq;
+
+	bclk_freq = sample_rate * frame_size;
+
+	cur_freq = clk_get_rate(i2s->clk_sys);
+
+	if (cur_freq >= bclk_freq * 8) {
+		*bclk_filter_enable = 1;
+		*bclk_filter_value = 0;
+	} else if (cur_freq >= bclk_freq * 7) {
+		*bclk_filter_enable = 1;
+		*bclk_filter_value = 1;
+	} else if (cur_freq >= bclk_freq * 6) {
+		*bclk_filter_enable = 0;
+		*bclk_filter_value = 0;
+	} else {
+		dev_err(i2s->dev,
+			"Sys clock rate %u insufficient for sample rate %u\n",
+			cur_freq, sample_rate);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_i2s_in_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
+	unsigned int rate, channels, i2s_channels, frame_size;
+	unsigned int bclk_filter_enable, bclk_filter_value;
+	int i, ret = 0;
+	u32 reg, control_mask, chan_control_mask;
+	u32 control_set = 0, chan_control_set = 0;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	format = params_format(params);
+	channels = params_channels(params);
+	i2s_channels = channels / 2;
+
+	switch (format) {
+	case SNDRV_PCM_FORMAT_S32_LE:
+		frame_size = 64;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_SW_MASK;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_FW_MASK;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_PACKH_MASK;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		frame_size = 64;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_SW_MASK;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_FW_MASK;
+		break;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		frame_size = 32;
+		control_set |= IMG_I2S_IN_CTL_16PACK_MASK;
+		chan_control_set |= IMG_I2S_IN_CH_CTL_16PACK_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if ((channels < 2) ||
+	    (channels > (i2s->max_i2s_chan * 2)) ||
+	    (channels % 2))
+		return -EINVAL;
+
+	control_set |= ((i2s_channels - 1) << IMG_I2S_IN_CTL_ACTIVE_CH_SHIFT);
+
+	ret = img_i2s_in_check_rate(i2s, rate, frame_size,
+			&bclk_filter_enable, &bclk_filter_value);
+	if (ret < 0)
+		return ret;
+
+	if (bclk_filter_enable)
+		chan_control_set |= IMG_I2S_IN_CH_CTL_FEN_MASK;
+
+	if (bclk_filter_value)
+		chan_control_set |= IMG_I2S_IN_CH_CTL_FMODE_MASK;
+
+	control_mask = IMG_I2S_IN_CTL_16PACK_MASK |
+		       IMG_I2S_IN_CTL_ACTIVE_CHAN_MASK;
+
+	chan_control_mask = IMG_I2S_IN_CH_CTL_16PACK_MASK |
+			    IMG_I2S_IN_CH_CTL_FEN_MASK |
+			    IMG_I2S_IN_CH_CTL_FMODE_MASK |
+			    IMG_I2S_IN_CH_CTL_SW_MASK |
+			    IMG_I2S_IN_CH_CTL_FW_MASK |
+			    IMG_I2S_IN_CH_CTL_PACKH_MASK;
+
+	reg = img_i2s_in_readl(i2s, IMG_I2S_IN_CTL);
+	reg = (reg & ~control_mask) | control_set;
+	img_i2s_in_writel(i2s, reg, IMG_I2S_IN_CTL);
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_in_ch_disable(i2s, i);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++) {
+		reg = img_i2s_in_ch_readl(i2s, i, IMG_I2S_IN_CH_CTL);
+		reg = (reg & ~chan_control_mask) | chan_control_set;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+	}
+
+	i2s->active_channels = i2s_channels;
+
+	img_i2s_in_flush(i2s);
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_in_ch_enable(i2s, i);
+
+	return 0;
+}
+
+static int img_i2s_in_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
+	int i;
+	u32 chan_control_mask, lrd_set = 0, blkp_set = 0, chan_control_set = 0;
+	u32 reg;
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		lrd_set |= IMG_I2S_IN_CH_CTL_LRD_MASK;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		lrd_set |= IMG_I2S_IN_CH_CTL_LRD_MASK;
+		blkp_set |= IMG_I2S_IN_CH_CTL_BLKP_MASK;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		blkp_set |= IMG_I2S_IN_CH_CTL_BLKP_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		chan_control_set |= IMG_I2S_IN_CH_CTL_CLK_TRANS_MASK;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	chan_control_mask = IMG_I2S_IN_CH_CTL_CLK_TRANS_MASK;
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_in_ch_disable(i2s, i);
+
+	/*
+	 * BLKP and LRD must be set during separate register writes
+	 */
+	for (i = 0; i < i2s->max_i2s_chan; i++) {
+		reg = img_i2s_in_ch_readl(i2s, i, IMG_I2S_IN_CH_CTL);
+		reg = (reg & ~chan_control_mask) | chan_control_set;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+		reg = (reg & ~IMG_I2S_IN_CH_CTL_BLKP_MASK) | blkp_set;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+		reg = (reg & ~IMG_I2S_IN_CH_CTL_LRD_MASK) | lrd_set;
+		img_i2s_in_ch_writel(i2s, i, reg, IMG_I2S_IN_CH_CTL);
+	}
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_in_ch_enable(i2s, i);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops img_i2s_in_dai_ops = {
+	.trigger = img_i2s_in_trigger,
+	.hw_params = img_i2s_in_hw_params,
+	.set_fmt = img_i2s_in_set_fmt
+};
+
+static int img_i2s_in_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_i2s_in *i2s = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, NULL, &i2s->dma_data);
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver img_i2s_in_component = {
+	.name = "img-i2s-in"
+};
+
+static int img_i2s_in_dma_prepare_slave_config(struct snd_pcm_substream *st,
+	struct snd_pcm_hw_params *params, struct dma_slave_config *sc)
+{
+	unsigned int i2s_channels = params_channels(params) / 2;
+	struct snd_soc_pcm_runtime *rtd = st->private_data;
+	struct snd_dmaengine_dai_dma_data *dma_data;
+	int ret;
+
+	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, st);
+
+	ret = snd_hwparams_to_dma_slave_config(st, params, sc);
+	if (ret)
+		return ret;
+
+	sc->src_addr = dma_data->addr;
+	sc->src_addr_width = dma_data->addr_width;
+	sc->src_maxburst = 4 * i2s_channels;
+
+	return 0;
+}
+
+static const struct snd_dmaengine_pcm_config img_i2s_in_dma_config = {
+	.prepare_slave_config = img_i2s_in_dma_prepare_slave_config
+};
+
+static int img_i2s_in_probe(struct platform_device *pdev)
+{
+	struct img_i2s_in *i2s;
+	struct resource *res;
+	void __iomem *base;
+	int ret, i;
+	struct reset_control *rst;
+	unsigned int max_i2s_chan_pow_2;
+	struct device *dev = &pdev->dev;
+
+	i2s = devm_kzalloc(dev, sizeof(*i2s), GFP_KERNEL);
+	if (!i2s)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, i2s);
+
+	i2s->dev = dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	i2s->base = base;
+
+	if (of_property_read_u32(pdev->dev.of_node, "img,i2s-channels",
+			&i2s->max_i2s_chan)) {
+		dev_err(dev, "No img,i2s-channels property\n");
+		return -EINVAL;
+	}
+
+	max_i2s_chan_pow_2 = 1 << get_count_order(i2s->max_i2s_chan);
+
+	i2s->channel_base = base + (max_i2s_chan_pow_2 * 0x20);
+
+	i2s->clk_sys = devm_clk_get(dev, "sys");
+	if (IS_ERR(i2s->clk_sys)) {
+		if (PTR_ERR(i2s->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(i2s->clk_sys);
+	}
+
+	ret = clk_prepare_enable(i2s->clk_sys);
+	if (ret)
+		return ret;
+
+	i2s->active_channels = 1;
+	i2s->dma_data.addr = res->start + IMG_I2S_IN_RX_FIFO;
+	i2s->dma_data.addr_width = 4;
+
+	i2s->dai_driver.probe = img_i2s_in_dai_probe;
+	i2s->dai_driver.capture.channels_min = 2;
+	i2s->dai_driver.capture.channels_max = i2s->max_i2s_chan * 2;
+	i2s->dai_driver.capture.rates = SNDRV_PCM_RATE_8000_192000;
+	i2s->dai_driver.capture.formats = SNDRV_PCM_FMTBIT_S32_LE |
+		SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE;
+	i2s->dai_driver.ops = &img_i2s_in_dai_ops;
+
+	rst = devm_reset_control_get(dev, "rst");
+	if (IS_ERR(rst)) {
+		if (PTR_ERR(rst) == -EPROBE_DEFER) {
+			ret = -EPROBE_DEFER;
+			goto err_clk_disable;
+		}
+
+		dev_dbg(dev, "No top level reset found\n");
+
+		img_i2s_in_disable(i2s);
+
+		for (i = 0; i < i2s->max_i2s_chan; i++)
+			img_i2s_in_ch_disable(i2s, i);
+	} else {
+		reset_control_assert(rst);
+		reset_control_deassert(rst);
+	}
+
+	img_i2s_in_writel(i2s, 0, IMG_I2S_IN_CTL);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++)
+		img_i2s_in_ch_writel(i2s, i,
+			(4 << IMG_I2S_IN_CH_CTL_CCDEL_SHIFT) |
+			IMG_I2S_IN_CH_CTL_JUST_MASK |
+			IMG_I2S_IN_CH_CTL_FW_MASK, IMG_I2S_IN_CH_CTL);
+
+	ret = devm_snd_soc_register_component(dev, &img_i2s_in_component,
+						&i2s->dai_driver, 1);
+	if (ret)
+		goto err_clk_disable;
+
+	ret = devm_snd_dmaengine_pcm_register(dev, &img_i2s_in_dma_config, 0);
+	if (ret)
+		goto err_clk_disable;
+
+	return 0;
+
+err_clk_disable:
+	clk_disable_unprepare(i2s->clk_sys);
+
+	return ret;
+}
+
+static int img_i2s_in_dev_remove(struct platform_device *pdev)
+{
+	struct img_i2s_in *i2s = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(i2s->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_i2s_in_of_match[] = {
+	{ .compatible = "img,i2s-in" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_i2s_in_of_match);
+
+static struct platform_driver img_i2s_in_driver = {
+	.driver = {
+		.name = "img-i2s-in",
+		.of_match_table = img_i2s_in_of_match
+	},
+	.probe = img_i2s_in_probe,
+	.remove = img_i2s_in_dev_remove
+};
+module_platform_driver(img_i2s_in_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG I2S Input Driver");
+MODULE_LICENSE("GPL v2");

sound/soc/img/img-i2s-out.c

+/*
+ * IMG I2S output controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_I2S_OUT_TX_FIFO			0x0
+
+#define IMG_I2S_OUT_CTL				0x4
+#define IMG_I2S_OUT_CTL_DATA_EN_MASK		BIT(24)
+#define IMG_I2S_OUT_CTL_ACTIVE_CHAN_MASK	0xffe000
+#define IMG_I2S_OUT_CTL_ACTIVE_CHAN_SHIFT	13
+#define IMG_I2S_OUT_CTL_FRM_SIZE_MASK		BIT(8)
+#define IMG_I2S_OUT_CTL_MASTER_MASK		BIT(6)
+#define IMG_I2S_OUT_CTL_CLK_MASK		BIT(5)
+#define IMG_I2S_OUT_CTL_CLK_EN_MASK		BIT(4)
+#define IMG_I2S_OUT_CTL_FRM_CLK_POL_MASK	BIT(3)
+#define IMG_I2S_OUT_CTL_BCLK_POL_MASK		BIT(2)
+#define IMG_I2S_OUT_CTL_ME_MASK			BIT(0)
+
+#define IMG_I2S_OUT_CH_CTL			0x4
+#define IMG_I2S_OUT_CHAN_CTL_CH_MASK		BIT(11)
+#define IMG_I2S_OUT_CHAN_CTL_LT_MASK		BIT(10)
+#define IMG_I2S_OUT_CHAN_CTL_FMT_MASK		0xf0
+#define IMG_I2S_OUT_CHAN_CTL_FMT_SHIFT		4
+#define IMG_I2S_OUT_CHAN_CTL_JUST_MASK		BIT(3)
+#define IMG_I2S_OUT_CHAN_CTL_CLKT_MASK		BIT(1)
+#define IMG_I2S_OUT_CHAN_CTL_ME_MASK		BIT(0)
+
+#define IMG_I2S_OUT_CH_STRIDE			0x20
+
+struct img_i2s_out {
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct clk *clk_ref;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	unsigned int max_i2s_chan;
+	void __iomem *channel_base;
+	bool force_clk_active;
+	unsigned int active_channels;
+	struct reset_control *rst;
+	struct snd_soc_dai_driver dai_driver;
+};
+
+static int img_i2s_out_suspend(struct device *dev)
+{
+	struct img_i2s_out *i2s = dev_get_drvdata(dev);
+
+	if (!i2s->force_clk_active)
+		clk_disable_unprepare(i2s->clk_ref);
+
+	return 0;
+}
+
+static int img_i2s_out_resume(struct device *dev)
+{
+	struct img_i2s_out *i2s = dev_get_drvdata(dev);
+	int ret;
+
+	if (!i2s->force_clk_active) {
+		ret = clk_prepare_enable(i2s->clk_ref);
+		if (ret) {
+			dev_err(dev, "clk_enable failed: %d\n", ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static inline void img_i2s_out_writel(struct img_i2s_out *i2s, u32 val,
+					u32 reg)
+{
+	writel(val, i2s->base + reg);
+}
+
+static inline u32 img_i2s_out_readl(struct img_i2s_out *i2s, u32 reg)
+{
+	return readl(i2s->base + reg);
+}
+
+static inline void img_i2s_out_ch_writel(struct img_i2s_out *i2s,
+					u32 chan, u32 val, u32 reg)
+{
+	writel(val, i2s->channel_base + (chan * IMG_I2S_OUT_CH_STRIDE) + reg);
+}
+
+static inline u32 img_i2s_out_ch_readl(struct img_i2s_out *i2s, u32 chan,
+					u32 reg)
+{
+	return readl(i2s->channel_base + (chan * IMG_I2S_OUT_CH_STRIDE) + reg);
+}
+
+static inline void img_i2s_out_ch_disable(struct img_i2s_out *i2s, u32 chan)
+{
+	u32 reg;
+
+	reg = img_i2s_out_ch_readl(i2s, chan, IMG_I2S_OUT_CH_CTL);
+	reg &= ~IMG_I2S_OUT_CHAN_CTL_ME_MASK;
+	img_i2s_out_ch_writel(i2s, chan, reg, IMG_I2S_OUT_CH_CTL);
+}
+
+static inline void img_i2s_out_ch_enable(struct img_i2s_out *i2s, u32 chan)
+{
+	u32 reg;
+
+	reg = img_i2s_out_ch_readl(i2s, chan, IMG_I2S_OUT_CH_CTL);
+	reg |= IMG_I2S_OUT_CHAN_CTL_ME_MASK;
+	img_i2s_out_ch_writel(i2s, chan, reg, IMG_I2S_OUT_CH_CTL);
+}
+
+static inline void img_i2s_out_disable(struct img_i2s_out *i2s)
+{
+	u32 reg;
+
+	reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+	reg &= ~IMG_I2S_OUT_CTL_ME_MASK;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+}
+
+static inline void img_i2s_out_enable(struct img_i2s_out *i2s)
+{
+	u32 reg;
+
+	reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+	reg |= IMG_I2S_OUT_CTL_ME_MASK;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+}
+
+static void img_i2s_out_reset(struct img_i2s_out *i2s)
+{
+	int i;
+	u32 core_ctl, chan_ctl;
+
+	core_ctl = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL) &
+			~IMG_I2S_OUT_CTL_ME_MASK &
+			~IMG_I2S_OUT_CTL_DATA_EN_MASK;
+
+	if (!i2s->force_clk_active)
+		core_ctl &= ~IMG_I2S_OUT_CTL_CLK_EN_MASK;
+
+	chan_ctl = img_i2s_out_ch_readl(i2s, 0, IMG_I2S_OUT_CH_CTL) &
+			~IMG_I2S_OUT_CHAN_CTL_ME_MASK;
+
+	reset_control_assert(i2s->rst);
+	reset_control_deassert(i2s->rst);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++)
+		img_i2s_out_ch_writel(i2s, i, chan_ctl, IMG_I2S_OUT_CH_CTL);
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_out_ch_enable(i2s, i);
+
+	img_i2s_out_writel(i2s, core_ctl, IMG_I2S_OUT_CTL);
+	img_i2s_out_enable(i2s);
+}
+
+static int img_i2s_out_trigger(struct snd_pcm_substream *substream, int cmd,
+	struct snd_soc_dai *dai)
+{
+	struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
+	u32 reg;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+		if (!i2s->force_clk_active)
+			reg |= IMG_I2S_OUT_CTL_CLK_EN_MASK;
+		reg |= IMG_I2S_OUT_CTL_DATA_EN_MASK;
+		img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		img_i2s_out_reset(i2s);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_i2s_out_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
+	unsigned int channels, i2s_channels;
+	long pre_div_a, pre_div_b, diff_a, diff_b, rate, clk_rate;
+	int i;
+	u32 reg, control_mask, control_set = 0;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	format = params_format(params);
+	channels = params_channels(params);
+	i2s_channels = channels / 2;
+
+	if (format != SNDRV_PCM_FORMAT_S32_LE)
+		return -EINVAL;
+
+	if ((channels < 2) ||
+	    (channels > (i2s->max_i2s_chan * 2)) ||
+	    (channels % 2))
+		return -EINVAL;
+
+	pre_div_a = clk_round_rate(i2s->clk_ref, rate * 256);
+	if (pre_div_a < 0)
+		return pre_div_a;
+	pre_div_b = clk_round_rate(i2s->clk_ref, rate * 384);
+	if (pre_div_b < 0)
+		return pre_div_b;
+
+	diff_a = abs((pre_div_a / 256) - rate);
+	diff_b = abs((pre_div_b / 384) - rate);
+
+	/* If diffs are equal, use lower clock rate */
+	if (diff_a > diff_b)
+		clk_set_rate(i2s->clk_ref, pre_div_b);
+	else
+		clk_set_rate(i2s->clk_ref, pre_div_a);
+
+	/*
+	 * Another driver (eg alsa machine driver) may have rejected the above
+	 * change. Get the current rate and set the register bit according to
+	 * the new minimum diff
+	 */
+	clk_rate = clk_get_rate(i2s->clk_ref);
+
+	diff_a = abs((clk_rate / 256) - rate);
+	diff_b = abs((clk_rate / 384) - rate);
+
+	if (diff_a > diff_b)
+		control_set |= IMG_I2S_OUT_CTL_CLK_MASK;
+
+	control_set |= ((i2s_channels - 1) <<
+		       IMG_I2S_OUT_CTL_ACTIVE_CHAN_SHIFT) &
+		       IMG_I2S_OUT_CTL_ACTIVE_CHAN_MASK;
+
+	control_mask = IMG_I2S_OUT_CTL_CLK_MASK |
+		       IMG_I2S_OUT_CTL_ACTIVE_CHAN_MASK;
+
+	img_i2s_out_disable(i2s);
+
+	reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+	reg = (reg & ~control_mask) | control_set;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+
+	for (i = 0; i < i2s_channels; i++)
+		img_i2s_out_ch_enable(i2s, i);
+
+	for (; i < i2s->max_i2s_chan; i++)
+		img_i2s_out_ch_disable(i2s, i);
+
+	img_i2s_out_enable(i2s);
+
+	i2s->active_channels = i2s_channels;
+
+	return 0;
+}
+
+static int img_i2s_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
+	int i;
+	bool force_clk_active;
+	u32 chan_control_mask, control_mask, chan_control_set = 0;
+	u32 reg, control_set = 0;
+
+	force_clk_active = ((fmt & SND_SOC_DAIFMT_CLOCK_MASK) ==
+			SND_SOC_DAIFMT_CONT);
+
+	if (force_clk_active)
+		control_set |= IMG_I2S_OUT_CTL_CLK_EN_MASK;
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM:
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS:
+		control_set |= IMG_I2S_OUT_CTL_MASTER_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		control_set |= IMG_I2S_OUT_CTL_BCLK_POL_MASK;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		control_set |= IMG_I2S_OUT_CTL_BCLK_POL_MASK;
+		control_set |= IMG_I2S_OUT_CTL_FRM_CLK_POL_MASK;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		control_set |= IMG_I2S_OUT_CTL_FRM_CLK_POL_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		chan_control_set |= IMG_I2S_OUT_CHAN_CTL_CLKT_MASK;
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	control_mask = IMG_I2S_OUT_CTL_CLK_EN_MASK |
+		       IMG_I2S_OUT_CTL_MASTER_MASK |
+		       IMG_I2S_OUT_CTL_BCLK_POL_MASK |
+		       IMG_I2S_OUT_CTL_FRM_CLK_POL_MASK;
+
+	chan_control_mask = IMG_I2S_OUT_CHAN_CTL_CLKT_MASK;
+
+	img_i2s_out_disable(i2s);
+
+	reg = img_i2s_out_readl(i2s, IMG_I2S_OUT_CTL);
+	reg = (reg & ~control_mask) | control_set;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_out_ch_disable(i2s, i);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++) {
+		reg = img_i2s_out_ch_readl(i2s, i, IMG_I2S_OUT_CH_CTL);
+		reg = (reg & ~chan_control_mask) | chan_control_set;
+		img_i2s_out_ch_writel(i2s, i, reg, IMG_I2S_OUT_CH_CTL);
+	}
+
+	for (i = 0; i < i2s->active_channels; i++)
+		img_i2s_out_ch_enable(i2s, i);
+
+	img_i2s_out_enable(i2s);
+
+	i2s->force_clk_active = force_clk_active;
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops img_i2s_out_dai_ops = {
+	.trigger = img_i2s_out_trigger,
+	.hw_params = img_i2s_out_hw_params,
+	.set_fmt = img_i2s_out_set_fmt
+};
+
+static int img_i2s_out_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_i2s_out *i2s = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &i2s->dma_data, NULL);
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver img_i2s_out_component = {
+	.name = "img-i2s-out"
+};
+
+static int img_i2s_out_dma_prepare_slave_config(struct snd_pcm_substream *st,
+	struct snd_pcm_hw_params *params, struct dma_slave_config *sc)
+{
+	unsigned int i2s_channels = params_channels(params) / 2;
+	struct snd_soc_pcm_runtime *rtd = st->private_data;
+	struct snd_dmaengine_dai_dma_data *dma_data;
+	int ret;
+
+	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, st);
+
+	ret = snd_hwparams_to_dma_slave_config(st, params, sc);
+	if (ret)
+		return ret;
+
+	sc->dst_addr = dma_data->addr;
+	sc->dst_addr_width = dma_data->addr_width;
+	sc->dst_maxburst = 4 * i2s_channels;
+
+	return 0;
+}
+
+static const struct snd_dmaengine_pcm_config img_i2s_out_dma_config = {
+	.prepare_slave_config = img_i2s_out_dma_prepare_slave_config
+};
+
+static int img_i2s_out_probe(struct platform_device *pdev)
+{
+	struct img_i2s_out *i2s;
+	struct resource *res;
+	void __iomem *base;
+	int i, ret;
+	unsigned int max_i2s_chan_pow_2;
+	u32 reg;
+	struct device *dev = &pdev->dev;
+
+	i2s = devm_kzalloc(&pdev->dev, sizeof(*i2s), GFP_KERNEL);
+	if (!i2s)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, i2s);
+
+	i2s->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	i2s->base = base;
+
+	if (of_property_read_u32(pdev->dev.of_node, "img,i2s-channels",
+			&i2s->max_i2s_chan)) {
+		dev_err(&pdev->dev, "No img,i2s-channels property\n");
+		return -EINVAL;
+	}
+
+	max_i2s_chan_pow_2 = 1 << get_count_order(i2s->max_i2s_chan);
+
+	i2s->channel_base = base + (max_i2s_chan_pow_2 * 0x20);
+
+	i2s->rst = devm_reset_control_get(&pdev->dev, "rst");
+	if (IS_ERR(i2s->rst)) {
+		if (PTR_ERR(i2s->rst) != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "No top level reset found\n");
+		return PTR_ERR(i2s->rst);
+	}
+
+	i2s->clk_sys = devm_clk_get(&pdev->dev, "sys");
+	if (IS_ERR(i2s->clk_sys)) {
+		if (PTR_ERR(i2s->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(i2s->clk_sys);
+	}
+
+	i2s->clk_ref = devm_clk_get(&pdev->dev, "ref");
+	if (IS_ERR(i2s->clk_ref)) {
+		if (PTR_ERR(i2s->clk_ref) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'ref'\n");
+		return PTR_ERR(i2s->clk_ref);
+	}
+
+	ret = clk_prepare_enable(i2s->clk_sys);
+	if (ret)
+		return ret;
+
+	reg = IMG_I2S_OUT_CTL_FRM_SIZE_MASK;
+	img_i2s_out_writel(i2s, reg, IMG_I2S_OUT_CTL);
+
+	reg = IMG_I2S_OUT_CHAN_CTL_JUST_MASK |
+		IMG_I2S_OUT_CHAN_CTL_LT_MASK |
+		IMG_I2S_OUT_CHAN_CTL_CH_MASK |
+		(8 << IMG_I2S_OUT_CHAN_CTL_FMT_SHIFT);
+
+	for (i = 0; i < i2s->max_i2s_chan; i++)
+		img_i2s_out_ch_writel(i2s, i, reg, IMG_I2S_OUT_CH_CTL);
+
+	img_i2s_out_reset(i2s);
+
+	pm_runtime_enable(&pdev->dev);
+	if (!pm_runtime_enabled(&pdev->dev)) {
+		ret = img_i2s_out_resume(&pdev->dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	i2s->active_channels = 1;
+	i2s->dma_data.addr = res->start + IMG_I2S_OUT_TX_FIFO;
+	i2s->dma_data.addr_width = 4;
+	i2s->dma_data.maxburst = 4;
+
+	i2s->dai_driver.probe = img_i2s_out_dai_probe;
+	i2s->dai_driver.playback.channels_min = 2;
+	i2s->dai_driver.playback.channels_max = i2s->max_i2s_chan * 2;
+	i2s->dai_driver.playback.rates = SNDRV_PCM_RATE_8000_192000;
+	i2s->dai_driver.playback.formats = SNDRV_PCM_FMTBIT_S32_LE;
+	i2s->dai_driver.ops = &img_i2s_out_dai_ops;
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&img_i2s_out_component, &i2s->dai_driver, 1);
+	if (ret)
+		goto err_suspend;
+
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev,
+			&img_i2s_out_dma_config, 0);
+	if (ret)
+		goto err_suspend;
+
+	return 0;
+
+err_suspend:
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_i2s_out_suspend(&pdev->dev);
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	clk_disable_unprepare(i2s->clk_sys);
+
+	return ret;
+}
+
+static int img_i2s_out_dev_remove(struct platform_device *pdev)
+{
+	struct img_i2s_out *i2s = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_i2s_out_suspend(&pdev->dev);
+
+	clk_disable_unprepare(i2s->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_i2s_out_of_match[] = {
+	{ .compatible = "img,i2s-out" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_i2s_out_of_match);
+
+static const struct dev_pm_ops img_i2s_out_pm_ops = {
+	SET_RUNTIME_PM_OPS(img_i2s_out_suspend,
+			   img_i2s_out_resume, NULL)
+};
+
+static struct platform_driver img_i2s_out_driver = {
+	.driver = {
+		.name = "img-i2s-out",
+		.of_match_table = img_i2s_out_of_match,
+		.pm = &img_i2s_out_pm_ops
+	},
+	.probe = img_i2s_out_probe,
+	.remove = img_i2s_out_dev_remove
+};
+module_platform_driver(img_i2s_out_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG I2S Output Driver");
+MODULE_LICENSE("GPL v2");

sound/soc/img/img-parallel-out.c

+/*
+ * IMG parallel output controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_PRL_OUT_TX_FIFO		0
+
+#define IMG_PRL_OUT_CTL			0x4
+#define IMG_PRL_OUT_CTL_CH_MASK		BIT(4)
+#define IMG_PRL_OUT_CTL_PACKH_MASK	BIT(3)
+#define IMG_PRL_OUT_CTL_EDGE_MASK	BIT(2)
+#define IMG_PRL_OUT_CTL_ME_MASK		BIT(1)
+#define IMG_PRL_OUT_CTL_SRST_MASK	BIT(0)
+
+struct img_prl_out {
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct clk *clk_ref;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	struct reset_control *rst;
+};
+
+static int img_prl_out_suspend(struct device *dev)
+{
+	struct img_prl_out *prl = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(prl->clk_ref);
+
+	return 0;
+}
+
+static int img_prl_out_resume(struct device *dev)
+{
+	struct img_prl_out *prl = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(prl->clk_ref);
+	if (ret) {
+		dev_err(dev, "clk_enable failed: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static inline void img_prl_out_writel(struct img_prl_out *prl,
+				u32 val, u32 reg)
+{
+	writel(val, prl->base + reg);
+}
+
+static inline u32 img_prl_out_readl(struct img_prl_out *prl, u32 reg)
+{
+	return readl(prl->base + reg);
+}
+
+static void img_prl_out_reset(struct img_prl_out *prl)
+{
+	u32 ctl;
+
+	ctl = img_prl_out_readl(prl, IMG_PRL_OUT_CTL) &
+			~IMG_PRL_OUT_CTL_ME_MASK;
+
+	reset_control_assert(prl->rst);
+	reset_control_deassert(prl->rst);
+
+	img_prl_out_writel(prl, ctl, IMG_PRL_OUT_CTL);
+}
+
+static int img_prl_out_trigger(struct snd_pcm_substream *substream, int cmd,
+			struct snd_soc_dai *dai)
+{
+	struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
+	u32 reg;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
+		reg |= IMG_PRL_OUT_CTL_ME_MASK;
+		img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		img_prl_out_reset(prl);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_prl_out_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
+	unsigned int rate, channels;
+	u32 reg, control_set = 0;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	format = params_format(params);
+	channels = params_channels(params);
+
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S32_LE:
+		control_set |= IMG_PRL_OUT_CTL_PACKH_MASK;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (channels != 2)
+		return -EINVAL;
+
+	clk_set_rate(prl->clk_ref, rate * 256);
+
+	reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
+	reg = (reg & ~IMG_PRL_OUT_CTL_PACKH_MASK) | control_set;
+	img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL);
+
+	return 0;
+}
+
+static int img_prl_out_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
+	u32 reg, control_set = 0;
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		control_set |= IMG_PRL_OUT_CTL_EDGE_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	reg = img_prl_out_readl(prl, IMG_PRL_OUT_CTL);
+	reg = (reg & ~IMG_PRL_OUT_CTL_EDGE_MASK) | control_set;
+	img_prl_out_writel(prl, reg, IMG_PRL_OUT_CTL);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops img_prl_out_dai_ops = {
+	.trigger = img_prl_out_trigger,
+	.hw_params = img_prl_out_hw_params,
+	.set_fmt = img_prl_out_set_fmt
+};
+
+static int img_prl_out_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_prl_out *prl = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &prl->dma_data, NULL);
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver img_prl_out_dai = {
+	.probe = img_prl_out_dai_probe,
+	.playback = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S24_LE
+	},
+	.ops = &img_prl_out_dai_ops
+};
+
+static const struct snd_soc_component_driver img_prl_out_component = {
+	.name = "img-prl-out"
+};
+
+static int img_prl_out_probe(struct platform_device *pdev)
+{
+	struct img_prl_out *prl;
+	struct resource *res;
+	void __iomem *base;
+	int ret;
+	struct device *dev = &pdev->dev;
+
+	prl = devm_kzalloc(&pdev->dev, sizeof(*prl), GFP_KERNEL);
+	if (!prl)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, prl);
+
+	prl->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	prl->base = base;
+
+	prl->rst = devm_reset_control_get(&pdev->dev, "rst");
+	if (IS_ERR(prl->rst)) {
+		if (PTR_ERR(prl->rst) != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "No top level reset found\n");
+		return PTR_ERR(prl->rst);
+	}
+
+	prl->clk_sys = devm_clk_get(&pdev->dev, "sys");
+	if (IS_ERR(prl->clk_sys)) {
+		if (PTR_ERR(prl->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(prl->clk_sys);
+	}
+
+	prl->clk_ref = devm_clk_get(&pdev->dev, "ref");
+	if (IS_ERR(prl->clk_ref)) {
+		if (PTR_ERR(prl->clk_ref) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'ref'\n");
+		return PTR_ERR(prl->clk_ref);
+	}
+
+	ret = clk_prepare_enable(prl->clk_sys);
+	if (ret)
+		return ret;
+
+	img_prl_out_writel(prl, IMG_PRL_OUT_CTL_EDGE_MASK, IMG_PRL_OUT_CTL);
+	img_prl_out_reset(prl);
+
+	pm_runtime_enable(&pdev->dev);
+	if (!pm_runtime_enabled(&pdev->dev)) {
+		ret = img_prl_out_resume(&pdev->dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	prl->dma_data.addr = res->start + IMG_PRL_OUT_TX_FIFO;
+	prl->dma_data.addr_width = 4;
+	prl->dma_data.maxburst = 4;
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&img_prl_out_component,
+			&img_prl_out_dai, 1);
+	if (ret)
+		goto err_suspend;
+
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (ret)
+		goto err_suspend;
+
+	return 0;
+
+err_suspend:
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_prl_out_suspend(&pdev->dev);
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	clk_disable_unprepare(prl->clk_sys);
+
+	return ret;
+}
+
+static int img_prl_out_dev_remove(struct platform_device *pdev)
+{
+	struct img_prl_out *prl = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_prl_out_suspend(&pdev->dev);
+
+	clk_disable_unprepare(prl->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_prl_out_of_match[] = {
+	{ .compatible = "img,parallel-out" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_prl_out_of_match);
+
+static const struct dev_pm_ops img_prl_out_pm_ops = {
+	SET_RUNTIME_PM_OPS(img_prl_out_suspend,
+			   img_prl_out_resume, NULL)
+};
+
+static struct platform_driver img_prl_out_driver = {
+	.driver = {
+		.name = "img-parallel-out",
+		.of_match_table = img_prl_out_of_match,
+		.pm = &img_prl_out_pm_ops
+	},
+	.probe = img_prl_out_probe,
+	.remove = img_prl_out_dev_remove
+};
+module_platform_driver(img_prl_out_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG Parallel Output Driver");
+MODULE_LICENSE("GPL v2");

sound/soc/img/img-spdif-in.c

+/*
+ * IMG SPDIF input controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_SPDIF_IN_RX_FIFO_OFFSET		0
+
+#define IMG_SPDIF_IN_CTL			0x4
+#define IMG_SPDIF_IN_CTL_LOCKLO_MASK		0xff
+#define IMG_SPDIF_IN_CTL_LOCKLO_SHIFT		0
+#define IMG_SPDIF_IN_CTL_LOCKHI_MASK		0xff00
+#define IMG_SPDIF_IN_CTL_LOCKHI_SHIFT		8
+#define IMG_SPDIF_IN_CTL_TRK_MASK		0xff0000
+#define IMG_SPDIF_IN_CTL_TRK_SHIFT		16
+#define IMG_SPDIF_IN_CTL_SRD_MASK		0x70000000
+#define IMG_SPDIF_IN_CTL_SRD_SHIFT		28
+#define IMG_SPDIF_IN_CTL_SRT_MASK		BIT(31)
+
+#define IMG_SPDIF_IN_STATUS			0x8
+#define IMG_SPDIF_IN_STATUS_SAM_MASK		0x7000
+#define IMG_SPDIF_IN_STATUS_SAM_SHIFT		12
+#define IMG_SPDIF_IN_STATUS_LOCK_MASK		BIT(15)
+#define IMG_SPDIF_IN_STATUS_LOCK_SHIFT		15
+
+#define IMG_SPDIF_IN_CLKGEN			0x1c
+#define IMG_SPDIF_IN_CLKGEN_NOM_MASK		0x3ff
+#define IMG_SPDIF_IN_CLKGEN_NOM_SHIFT		0
+#define IMG_SPDIF_IN_CLKGEN_HLD_MASK		0x3ff0000
+#define IMG_SPDIF_IN_CLKGEN_HLD_SHIFT		16
+
+#define IMG_SPDIF_IN_CSL			0x20
+
+#define IMG_SPDIF_IN_CSH			0x24
+#define IMG_SPDIF_IN_CSH_MASK			0xff
+#define IMG_SPDIF_IN_CSH_SHIFT			0
+
+#define IMG_SPDIF_IN_SOFT_RESET			0x28
+#define IMG_SPDIF_IN_SOFT_RESET_MASK		BIT(0)
+
+#define IMG_SPDIF_IN_ACLKGEN_START		0x2c
+#define IMG_SPDIF_IN_ACLKGEN_NOM_MASK		0x3ff
+#define IMG_SPDIF_IN_ACLKGEN_NOM_SHIFT		0
+#define IMG_SPDIF_IN_ACLKGEN_HLD_MASK		0xffc00
+#define IMG_SPDIF_IN_ACLKGEN_HLD_SHIFT		10
+#define IMG_SPDIF_IN_ACLKGEN_TRK_MASK		0xff00000
+#define IMG_SPDIF_IN_ACLKGEN_TRK_SHIFT		20
+
+#define IMG_SPDIF_IN_NUM_ACLKGEN		4
+
+struct img_spdif_in {
+	spinlock_t lock;
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	unsigned int trk;
+	bool multi_freq;
+	int lock_acquire;
+	int lock_release;
+	unsigned int single_freq;
+	unsigned int multi_freqs[IMG_SPDIF_IN_NUM_ACLKGEN];
+	bool active;
+
+	/* Write-only registers */
+	unsigned int aclkgen_regs[IMG_SPDIF_IN_NUM_ACLKGEN];
+};
+
+static inline void img_spdif_in_writel(struct img_spdif_in *spdif,
+					u32 val, u32 reg)
+{
+	writel(val, spdif->base + reg);
+}
+
+static inline u32 img_spdif_in_readl(struct img_spdif_in *spdif, u32 reg)
+{
+	return readl(spdif->base + reg);
+}
+
+static inline void img_spdif_in_aclkgen_writel(struct img_spdif_in *spdif,
+						u32 index)
+{
+	img_spdif_in_writel(spdif, spdif->aclkgen_regs[index],
+			IMG_SPDIF_IN_ACLKGEN_START + (index * 0x4));
+}
+
+static int img_spdif_in_check_max_rate(struct img_spdif_in *spdif,
+		unsigned int sample_rate, unsigned long *actual_freq)
+{
+	unsigned long min_freq, freq_t;
+
+	/* Clock rate must be at least 24x the bit rate */
+	min_freq = sample_rate * 2 * 32 * 24;
+
+	freq_t = clk_get_rate(spdif->clk_sys);
+
+	if (freq_t < min_freq)
+		return -EINVAL;
+
+	*actual_freq = freq_t;
+
+	return 0;
+}
+
+static int img_spdif_in_do_clkgen_calc(unsigned int rate, unsigned int *pnom,
+		unsigned int *phld, unsigned long clk_rate)
+{
+	unsigned int ori, nom, hld;
+
+	/*
+	 * Calculate oversampling ratio, nominal phase increment and hold
+	 * increment for the given rate / frequency
+	 */
+
+	if (!rate)
+		return -EINVAL;
+
+	ori = clk_rate / (rate * 64);
+
+	if (!ori)
+		return -EINVAL;
+
+	nom = (4096 / ori) + 1;
+	do
+		hld = 4096 - (--nom * (ori - 1));
+	while (hld < 120);
+
+	*pnom = nom;
+	*phld = hld;
+
+	return 0;
+}
+
+static int img_spdif_in_do_clkgen_single(struct img_spdif_in *spdif,
+		unsigned int rate)
+{
+	unsigned int nom, hld;
+	unsigned long flags, clk_rate;
+	int ret = 0;
+	u32 reg;
+
+	ret = img_spdif_in_check_max_rate(spdif, rate, &clk_rate);
+	if (ret)
+		return ret;
+
+	ret = img_spdif_in_do_clkgen_calc(rate, &nom, &hld, clk_rate);
+	if (ret)
+		return ret;
+
+	reg = (nom << IMG_SPDIF_IN_CLKGEN_NOM_SHIFT) &
+		IMG_SPDIF_IN_CLKGEN_NOM_MASK;
+	reg |= (hld << IMG_SPDIF_IN_CLKGEN_HLD_SHIFT) &
+		IMG_SPDIF_IN_CLKGEN_HLD_MASK;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CLKGEN);
+
+	spdif->single_freq = rate;
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_do_clkgen_multi(struct img_spdif_in *spdif,
+		unsigned int multi_freqs[])
+{
+	unsigned int nom, hld, rate, max_rate = 0;
+	unsigned long flags, clk_rate;
+	int i, ret = 0;
+	u32 reg, trk_reg, temp_regs[IMG_SPDIF_IN_NUM_ACLKGEN];
+
+	for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++)
+		if (multi_freqs[i] > max_rate)
+			max_rate = multi_freqs[i];
+
+	ret = img_spdif_in_check_max_rate(spdif, max_rate, &clk_rate);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++) {
+		rate = multi_freqs[i];
+
+		ret = img_spdif_in_do_clkgen_calc(rate, &nom, &hld, clk_rate);
+		if (ret)
+			return ret;
+
+		reg = (nom << IMG_SPDIF_IN_ACLKGEN_NOM_SHIFT) &
+			IMG_SPDIF_IN_ACLKGEN_NOM_MASK;
+		reg |= (hld << IMG_SPDIF_IN_ACLKGEN_HLD_SHIFT) &
+			IMG_SPDIF_IN_ACLKGEN_HLD_MASK;
+		temp_regs[i] = reg;
+	}
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	trk_reg = spdif->trk << IMG_SPDIF_IN_ACLKGEN_TRK_SHIFT;
+
+	for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++) {
+		spdif->aclkgen_regs[i] = temp_regs[i] | trk_reg;
+		img_spdif_in_aclkgen_writel(spdif, i);
+	}
+
+	spdif->multi_freq = true;
+	spdif->multi_freqs[0] = multi_freqs[0];
+	spdif->multi_freqs[1] = multi_freqs[1];
+	spdif->multi_freqs[2] = multi_freqs[2];
+	spdif->multi_freqs[3] = multi_freqs[3];
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_iec958_info(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+
+	return 0;
+}
+
+static int img_spdif_in_get_status_mask(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0xff;
+	ucontrol->value.iec958.status[3] = 0xff;
+	ucontrol->value.iec958.status[4] = 0xff;
+
+	return 0;
+}
+
+static int img_spdif_in_get_status(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	u32 reg;
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CSL);
+	ucontrol->value.iec958.status[0] = reg & 0xff;
+	ucontrol->value.iec958.status[1] = (reg >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (reg >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (reg >> 24) & 0xff;
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CSH);
+	ucontrol->value.iec958.status[4] = (reg & IMG_SPDIF_IN_CSH_MASK)
+		>> IMG_SPDIF_IN_CSH_SHIFT;
+
+	return 0;
+}
+
+static int img_spdif_in_info_multi_freq(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = IMG_SPDIF_IN_NUM_ACLKGEN;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = LONG_MAX;
+
+	return 0;
+}
+
+static int img_spdif_in_get_multi_freq(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned long flags;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+	if (spdif->multi_freq) {
+		ucontrol->value.integer.value[0] = spdif->multi_freqs[0];
+		ucontrol->value.integer.value[1] = spdif->multi_freqs[1];
+		ucontrol->value.integer.value[2] = spdif->multi_freqs[2];
+		ucontrol->value.integer.value[3] = spdif->multi_freqs[3];
+	} else {
+		ucontrol->value.integer.value[0] = 0;
+		ucontrol->value.integer.value[1] = 0;
+		ucontrol->value.integer.value[2] = 0;
+		ucontrol->value.integer.value[3] = 0;
+	}
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_set_multi_freq(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned int multi_freqs[IMG_SPDIF_IN_NUM_ACLKGEN];
+	bool multi_freq;
+	unsigned long flags;
+
+	if ((ucontrol->value.integer.value[0] == 0) &&
+			(ucontrol->value.integer.value[1] == 0) &&
+			(ucontrol->value.integer.value[2] == 0) &&
+			(ucontrol->value.integer.value[3] == 0)) {
+		multi_freq = false;
+	} else {
+		multi_freqs[0] = ucontrol->value.integer.value[0];
+		multi_freqs[1] = ucontrol->value.integer.value[1];
+		multi_freqs[2] = ucontrol->value.integer.value[2];
+		multi_freqs[3] = ucontrol->value.integer.value[3];
+		multi_freq = true;
+	}
+
+	if (multi_freq)
+		return img_spdif_in_do_clkgen_multi(spdif, multi_freqs);
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	spdif->multi_freq = false;
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_info_lock_freq(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = LONG_MAX;
+
+	return 0;
+}
+
+static int img_spdif_in_get_lock_freq(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *uc)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	u32 reg;
+	int i;
+	unsigned long flags;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_STATUS);
+	if (reg & IMG_SPDIF_IN_STATUS_LOCK_MASK) {
+		if (spdif->multi_freq) {
+			i = ((reg & IMG_SPDIF_IN_STATUS_SAM_MASK) >>
+					IMG_SPDIF_IN_STATUS_SAM_SHIFT) - 1;
+			uc->value.integer.value[0] = spdif->multi_freqs[i];
+		} else {
+			uc->value.integer.value[0] = spdif->single_freq;
+		}
+	} else {
+		uc->value.integer.value[0] = 0;
+	}
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_info_trk(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = 0;
+	uinfo->value.integer.max = 255;
+
+	return 0;
+}
+
+static int img_spdif_in_get_trk(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+
+	ucontrol->value.integer.value[0] = spdif->trk;
+
+	return 0;
+}
+
+static int img_spdif_in_set_trk(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned long flags;
+	int i;
+	u32 reg;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	spdif->trk = ucontrol->value.integer.value[0];
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+	reg &= ~IMG_SPDIF_IN_CTL_TRK_MASK;
+	reg |= spdif->trk << IMG_SPDIF_IN_CTL_TRK_SHIFT;
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+
+	for (i = 0; i < IMG_SPDIF_IN_NUM_ACLKGEN; i++) {
+		spdif->aclkgen_regs[i] = (spdif->aclkgen_regs[i] &
+			~IMG_SPDIF_IN_ACLKGEN_TRK_MASK) |
+			(spdif->trk << IMG_SPDIF_IN_ACLKGEN_TRK_SHIFT);
+
+		img_spdif_in_aclkgen_writel(spdif, i);
+	}
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_info_lock(struct snd_kcontrol *kcontrol,
+		struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
+	uinfo->count = 1;
+	uinfo->value.integer.min = -128;
+	uinfo->value.integer.max = 127;
+
+	return 0;
+}
+
+static int img_spdif_in_get_lock_acquire(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+
+	ucontrol->value.integer.value[0] = spdif->lock_acquire;
+
+	return 0;
+}
+
+static int img_spdif_in_set_lock_acquire(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	spdif->lock_acquire = ucontrol->value.integer.value[0];
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+	reg &= ~IMG_SPDIF_IN_CTL_LOCKHI_MASK;
+	reg |= (spdif->lock_acquire << IMG_SPDIF_IN_CTL_LOCKHI_SHIFT) &
+		IMG_SPDIF_IN_CTL_LOCKHI_MASK;
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_in_get_lock_release(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+
+	ucontrol->value.integer.value[0] = spdif->lock_release;
+
+	return 0;
+}
+
+static int img_spdif_in_set_lock_release(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	unsigned long flags;
+	u32 reg;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	if (spdif->active) {
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		return -EBUSY;
+	}
+
+	spdif->lock_release = ucontrol->value.integer.value[0];
+
+	reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+	reg &= ~IMG_SPDIF_IN_CTL_LOCKLO_MASK;
+	reg |= (spdif->lock_release << IMG_SPDIF_IN_CTL_LOCKLO_SHIFT) &
+		IMG_SPDIF_IN_CTL_LOCKLO_MASK;
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static struct snd_kcontrol_new img_spdif_in_controls[] = {
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, MASK),
+		.info = img_spdif_in_iec958_info,
+		.get = img_spdif_in_get_status_mask
+	},
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", CAPTURE, DEFAULT),
+		.info = img_spdif_in_iec958_info,
+		.get = img_spdif_in_get_status
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Multi Frequency Acquire",
+		.info = img_spdif_in_info_multi_freq,
+		.get = img_spdif_in_get_multi_freq,
+		.put = img_spdif_in_set_multi_freq
+	},
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ |
+			SNDRV_CTL_ELEM_ACCESS_VOLATILE,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Lock Frequency",
+		.info = img_spdif_in_info_lock_freq,
+		.get = img_spdif_in_get_lock_freq
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Lock TRK",
+		.info = img_spdif_in_info_trk,
+		.get = img_spdif_in_get_trk,
+		.put = img_spdif_in_set_trk
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Lock Acquire Threshold",
+		.info = img_spdif_in_info_lock,
+		.get = img_spdif_in_get_lock_acquire,
+		.put = img_spdif_in_set_lock_acquire
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = "SPDIF In Lock Release Threshold",
+		.info = img_spdif_in_info_lock,
+		.get = img_spdif_in_get_lock_release,
+		.put = img_spdif_in_set_lock_release
+	}
+};
+
+static int img_spdif_in_trigger(struct snd_pcm_substream *substream, int cmd,
+	struct snd_soc_dai *dai)
+{
+	unsigned long flags;
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(dai);
+	int ret = 0;
+	u32 reg;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+		if (spdif->multi_freq)
+			reg &= ~IMG_SPDIF_IN_CTL_SRD_MASK;
+		else
+			reg |= (1UL << IMG_SPDIF_IN_CTL_SRD_SHIFT);
+		reg |= IMG_SPDIF_IN_CTL_SRT_MASK;
+		img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+		spdif->active = true;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		reg = img_spdif_in_readl(spdif, IMG_SPDIF_IN_CTL);
+		reg &= ~IMG_SPDIF_IN_CTL_SRT_MASK;
+		img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+		spdif->active = false;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return ret;
+}
+
+static int img_spdif_in_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(dai);
+	unsigned int rate, channels;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	channels = params_channels(params);
+	format = params_format(params);
+
+	if (format != SNDRV_PCM_FORMAT_S32_LE)
+		return -EINVAL;
+
+	if (channels != 2)
+		return -EINVAL;
+
+	return img_spdif_in_do_clkgen_single(spdif, rate);
+}
+
+static const struct snd_soc_dai_ops img_spdif_in_dai_ops = {
+	.trigger = img_spdif_in_trigger,
+	.hw_params = img_spdif_in_hw_params
+};
+
+static int img_spdif_in_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_spdif_in *spdif = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, NULL, &spdif->dma_data);
+
+	snd_soc_add_dai_controls(dai, img_spdif_in_controls,
+			ARRAY_SIZE(img_spdif_in_controls));
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver img_spdif_in_dai = {
+	.probe = img_spdif_in_dai_probe,
+	.capture = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = SNDRV_PCM_FMTBIT_S32_LE
+	},
+	.ops = &img_spdif_in_dai_ops
+};
+
+static const struct snd_soc_component_driver img_spdif_in_component = {
+	.name = "img-spdif-in"
+};
+
+static int img_spdif_in_probe(struct platform_device *pdev)
+{
+	struct img_spdif_in *spdif;
+	struct resource *res;
+	void __iomem *base;
+	int ret;
+	struct reset_control *rst;
+	u32 reg;
+	struct device *dev = &pdev->dev;
+
+	spdif = devm_kzalloc(&pdev->dev, sizeof(*spdif), GFP_KERNEL);
+	if (!spdif)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, spdif);
+
+	spdif->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	spdif->base = base;
+
+	spdif->clk_sys = devm_clk_get(dev, "sys");
+	if (IS_ERR(spdif->clk_sys)) {
+		if (PTR_ERR(spdif->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(spdif->clk_sys);
+	}
+
+	ret = clk_prepare_enable(spdif->clk_sys);
+	if (ret)
+		return ret;
+
+	rst = devm_reset_control_get(&pdev->dev, "rst");
+	if (IS_ERR(rst)) {
+		if (PTR_ERR(rst) == -EPROBE_DEFER) {
+			ret = -EPROBE_DEFER;
+			goto err_clk_disable;
+		}
+		dev_dbg(dev, "No top level reset found\n");
+		img_spdif_in_writel(spdif, IMG_SPDIF_IN_SOFT_RESET_MASK,
+				IMG_SPDIF_IN_SOFT_RESET);
+		img_spdif_in_writel(spdif, 0, IMG_SPDIF_IN_SOFT_RESET);
+	} else {
+		reset_control_assert(rst);
+		reset_control_deassert(rst);
+	}
+
+	spin_lock_init(&spdif->lock);
+
+	spdif->dma_data.addr = res->start + IMG_SPDIF_IN_RX_FIFO_OFFSET;
+	spdif->dma_data.addr_width = 4;
+	spdif->dma_data.maxburst = 4;
+	spdif->trk = 0x80;
+	spdif->lock_acquire = 4;
+	spdif->lock_release = -128;
+
+	reg = (spdif->lock_acquire << IMG_SPDIF_IN_CTL_LOCKHI_SHIFT) &
+		IMG_SPDIF_IN_CTL_LOCKHI_MASK;
+	reg |= (spdif->lock_release << IMG_SPDIF_IN_CTL_LOCKLO_SHIFT) &
+		IMG_SPDIF_IN_CTL_LOCKLO_MASK;
+	reg |= (spdif->trk << IMG_SPDIF_IN_CTL_TRK_SHIFT) &
+		IMG_SPDIF_IN_CTL_TRK_MASK;
+	img_spdif_in_writel(spdif, reg, IMG_SPDIF_IN_CTL);
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&img_spdif_in_component, &img_spdif_in_dai, 1);
+	if (ret)
+		goto err_clk_disable;
+
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (ret)
+		goto err_clk_disable;
+
+	return 0;
+
+err_clk_disable:
+	clk_disable_unprepare(spdif->clk_sys);
+
+	return ret;
+}
+
+static int img_spdif_in_dev_remove(struct platform_device *pdev)
+{
+	struct img_spdif_in *spdif = platform_get_drvdata(pdev);
+
+	clk_disable_unprepare(spdif->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_spdif_in_of_match[] = {
+	{ .compatible = "img,spdif-in" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_spdif_in_of_match);
+
+static struct platform_driver img_spdif_in_driver = {
+	.driver = {
+		.name = "img-spdif-in",
+		.of_match_table = img_spdif_in_of_match
+	},
+	.probe = img_spdif_in_probe,
+	.remove = img_spdif_in_dev_remove
+};
+module_platform_driver(img_spdif_in_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG SPDIF Input driver");
+MODULE_LICENSE("GPL v2");

sound/soc/img/img-spdif-out.c

+/*
+ * IMG SPDIF output controller driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/reset.h>
+
+#include <sound/core.h>
+#include <sound/dmaengine_pcm.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define IMG_SPDIF_OUT_TX_FIFO		0x0
+
+#define IMG_SPDIF_OUT_CTL		0x4
+#define IMG_SPDIF_OUT_CTL_FS_MASK	BIT(4)
+#define IMG_SPDIF_OUT_CTL_CLK_MASK	BIT(2)
+#define IMG_SPDIF_OUT_CTL_SRT_MASK	BIT(0)
+
+#define IMG_SPDIF_OUT_CSL		0x14
+
+#define IMG_SPDIF_OUT_CSH_UV		0x18
+#define IMG_SPDIF_OUT_CSH_UV_CSH_SHIFT	0
+#define IMG_SPDIF_OUT_CSH_UV_CSH_MASK	0xff
+
+struct img_spdif_out {
+	spinlock_t lock;
+	void __iomem *base;
+	struct clk *clk_sys;
+	struct clk *clk_ref;
+	struct snd_dmaengine_dai_dma_data dma_data;
+	struct device *dev;
+	struct reset_control *rst;
+};
+
+static int img_spdif_out_suspend(struct device *dev)
+{
+	struct img_spdif_out *spdif = dev_get_drvdata(dev);
+
+	clk_disable_unprepare(spdif->clk_ref);
+
+	return 0;
+}
+
+static int img_spdif_out_resume(struct device *dev)
+{
+	struct img_spdif_out *spdif = dev_get_drvdata(dev);
+	int ret;
+
+	ret = clk_prepare_enable(spdif->clk_ref);
+	if (ret) {
+		dev_err(dev, "clk_enable failed: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static inline void img_spdif_out_writel(struct img_spdif_out *spdif, u32 val,
+				u32 reg)
+{
+	writel(val, spdif->base + reg);
+}
+
+static inline u32 img_spdif_out_readl(struct img_spdif_out *spdif, u32 reg)
+{
+	return readl(spdif->base + reg);
+}
+
+static void img_spdif_out_reset(struct img_spdif_out *spdif)
+{
+	u32 ctl, status_low, status_high;
+
+	ctl = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL) &
+			~IMG_SPDIF_OUT_CTL_SRT_MASK;
+	status_low = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);
+	status_high = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);
+
+	reset_control_assert(spdif->rst);
+	reset_control_deassert(spdif->rst);
+
+	img_spdif_out_writel(spdif, ctl, IMG_SPDIF_OUT_CTL);
+	img_spdif_out_writel(spdif, status_low, IMG_SPDIF_OUT_CSL);
+	img_spdif_out_writel(spdif, status_high, IMG_SPDIF_OUT_CSH_UV);
+}
+
+static int img_spdif_out_info(struct snd_kcontrol *kcontrol,
+					struct snd_ctl_elem_info *uinfo)
+{
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
+	uinfo->count = 1;
+
+	return 0;
+}
+
+static int img_spdif_out_get_status_mask(struct snd_kcontrol *kcontrol,
+				       struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.iec958.status[0] = 0xff;
+	ucontrol->value.iec958.status[1] = 0xff;
+	ucontrol->value.iec958.status[2] = 0xff;
+	ucontrol->value.iec958.status[3] = 0xff;
+	ucontrol->value.iec958.status[4] = 0xff;
+
+	return 0;
+}
+
+static int img_spdif_out_get_status(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	u32 reg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSL);
+	ucontrol->value.iec958.status[0] = reg & 0xff;
+	ucontrol->value.iec958.status[1] = (reg >> 8) & 0xff;
+	ucontrol->value.iec958.status[2] = (reg >> 16) & 0xff;
+	ucontrol->value.iec958.status[3] = (reg >> 24) & 0xff;
+
+	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);
+	ucontrol->value.iec958.status[4] =
+		(reg & IMG_SPDIF_OUT_CSH_UV_CSH_MASK) >>
+		IMG_SPDIF_OUT_CSH_UV_CSH_SHIFT;
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static int img_spdif_out_set_status(struct snd_kcontrol *kcontrol,
+				  struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_dai *cpu_dai = snd_kcontrol_chip(kcontrol);
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(cpu_dai);
+	u32 reg;
+	unsigned long flags;
+
+	reg = ((u32)ucontrol->value.iec958.status[3] << 24);
+	reg |= ((u32)ucontrol->value.iec958.status[2] << 16);
+	reg |= ((u32)ucontrol->value.iec958.status[1] << 8);
+	reg |= (u32)ucontrol->value.iec958.status[0];
+
+	spin_lock_irqsave(&spdif->lock, flags);
+
+	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CSL);
+
+	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CSH_UV);
+	reg &= ~IMG_SPDIF_OUT_CSH_UV_CSH_MASK;
+	reg |= (u32)ucontrol->value.iec958.status[4] <<
+			IMG_SPDIF_OUT_CSH_UV_CSH_SHIFT;
+	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CSH_UV);
+
+	spin_unlock_irqrestore(&spdif->lock, flags);
+
+	return 0;
+}
+
+static struct snd_kcontrol_new img_spdif_out_controls[] = {
+	{
+		.access = SNDRV_CTL_ELEM_ACCESS_READ,
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, MASK),
+		.info = img_spdif_out_info,
+		.get = img_spdif_out_get_status_mask
+	},
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_PCM,
+		.name = SNDRV_CTL_NAME_IEC958("", PLAYBACK, DEFAULT),
+		.info = img_spdif_out_info,
+		.get = img_spdif_out_get_status,
+		.put = img_spdif_out_set_status
+	}
+};
+
+static int img_spdif_out_trigger(struct snd_pcm_substream *substream, int cmd,
+			struct snd_soc_dai *dai)
+{
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);
+	u32 reg;
+	unsigned long flags;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL);
+		reg |= IMG_SPDIF_OUT_CTL_SRT_MASK;
+		img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CTL);
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		spin_lock_irqsave(&spdif->lock, flags);
+		img_spdif_out_reset(spdif);
+		spin_unlock_irqrestore(&spdif->lock, flags);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int img_spdif_out_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);
+	unsigned int channels;
+	long pre_div_a, pre_div_b, diff_a, diff_b, rate, clk_rate;
+	u32 reg;
+	snd_pcm_format_t format;
+
+	rate = params_rate(params);
+	format = params_format(params);
+	channels = params_channels(params);
+
+	dev_dbg(spdif->dev, "hw_params rate %ld channels %u format %u\n",
+			rate, channels, format);
+
+	if (format != SNDRV_PCM_FORMAT_S32_LE)
+		return -EINVAL;
+
+	if (channels != 2)
+		return -EINVAL;
+
+	pre_div_a = clk_round_rate(spdif->clk_ref, rate * 256);
+	if (pre_div_a < 0)
+		return pre_div_a;
+	pre_div_b = clk_round_rate(spdif->clk_ref, rate * 384);
+	if (pre_div_b < 0)
+		return pre_div_b;
+
+	diff_a = abs((pre_div_a / 256) - rate);
+	diff_b = abs((pre_div_b / 384) - rate);
+
+	/* If diffs are equal, use lower clock rate */
+	if (diff_a > diff_b)
+		clk_set_rate(spdif->clk_ref, pre_div_b);
+	else
+		clk_set_rate(spdif->clk_ref, pre_div_a);
+
+	/*
+	 * Another driver (eg machine driver) may have rejected the above
+	 * change. Get the current rate and set the register bit according to
+	 * the new min diff
+	 */
+	clk_rate = clk_get_rate(spdif->clk_ref);
+
+	diff_a = abs((clk_rate / 256) - rate);
+	diff_b = abs((clk_rate / 384) - rate);
+
+	reg = img_spdif_out_readl(spdif, IMG_SPDIF_OUT_CTL);
+	if (diff_a <= diff_b)
+		reg &= ~IMG_SPDIF_OUT_CTL_CLK_MASK;
+	else
+		reg |= IMG_SPDIF_OUT_CTL_CLK_MASK;
+	img_spdif_out_writel(spdif, reg, IMG_SPDIF_OUT_CTL);
+
+	return 0;
+}
+
+static const struct snd_soc_dai_ops img_spdif_out_dai_ops = {
+	.trigger = img_spdif_out_trigger,
+	.hw_params = img_spdif_out_hw_params
+};
+
+static int img_spdif_out_dai_probe(struct snd_soc_dai *dai)
+{
+	struct img_spdif_out *spdif = snd_soc_dai_get_drvdata(dai);
+
+	snd_soc_dai_init_dma_data(dai, &spdif->dma_data, NULL);
+
+	snd_soc_add_dai_controls(dai, img_spdif_out_controls,
+			ARRAY_SIZE(img_spdif_out_controls));
+
+	return 0;
+}
+
+static struct snd_soc_dai_driver img_spdif_out_dai = {
+	.probe = img_spdif_out_dai_probe,
+	.playback = {
+		.channels_min = 2,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000,
+		.formats = SNDRV_PCM_FMTBIT_S32_LE
+	},
+	.ops = &img_spdif_out_dai_ops
+};
+
+static const struct snd_soc_component_driver img_spdif_out_component = {
+	.name = "img-spdif-out"
+};
+
+static int img_spdif_out_probe(struct platform_device *pdev)
+{
+	struct img_spdif_out *spdif;
+	struct resource *res;
+	void __iomem *base;
+	int ret;
+	struct device *dev = &pdev->dev;
+
+	spdif = devm_kzalloc(&pdev->dev, sizeof(*spdif), GFP_KERNEL);
+	if (!spdif)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, spdif);
+
+	spdif->dev = &pdev->dev;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	spdif->base = base;
+
+	spdif->rst = devm_reset_control_get(&pdev->dev, "rst");
+	if (IS_ERR(spdif->rst)) {
+		if (PTR_ERR(spdif->rst) != -EPROBE_DEFER)
+			dev_err(&pdev->dev, "No top level reset found\n");
+		return PTR_ERR(spdif->rst);
+	}
+
+	spdif->clk_sys = devm_clk_get(&pdev->dev, "sys");
+	if (IS_ERR(spdif->clk_sys)) {
+		if (PTR_ERR(spdif->clk_sys) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'sys'\n");
+		return PTR_ERR(spdif->clk_sys);
+	}
+
+	spdif->clk_ref = devm_clk_get(&pdev->dev, "ref");
+	if (IS_ERR(spdif->clk_ref)) {
+		if (PTR_ERR(spdif->clk_ref) != -EPROBE_DEFER)
+			dev_err(dev, "Failed to acquire clock 'ref'\n");
+		return PTR_ERR(spdif->clk_ref);
+	}
+
+	ret = clk_prepare_enable(spdif->clk_sys);
+	if (ret)
+		return ret;
+
+	img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK,
+				IMG_SPDIF_OUT_CTL);
+
+	img_spdif_out_reset(spdif);
+
+	pm_runtime_enable(&pdev->dev);
+	if (!pm_runtime_enabled(&pdev->dev)) {
+		ret = img_spdif_out_resume(&pdev->dev);
+		if (ret)
+			goto err_pm_disable;
+	}
+
+	spin_lock_init(&spdif->lock);
+
+	spdif->dma_data.addr = res->start + IMG_SPDIF_OUT_TX_FIFO;
+	spdif->dma_data.addr_width = 4;
+	spdif->dma_data.maxburst = 4;
+
+	ret = devm_snd_soc_register_component(&pdev->dev,
+			&img_spdif_out_component,
+			&img_spdif_out_dai, 1);
+	if (ret)
+		goto err_suspend;
+
+	ret = devm_snd_dmaengine_pcm_register(&pdev->dev, NULL, 0);
+	if (ret)
+		goto err_suspend;
+
+	dev_dbg(&pdev->dev, "Probe successful\n");
+
+	return 0;
+
+err_suspend:
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_spdif_out_suspend(&pdev->dev);
+err_pm_disable:
+	pm_runtime_disable(&pdev->dev);
+	clk_disable_unprepare(spdif->clk_sys);
+
+	return ret;
+}
+
+static int img_spdif_out_dev_remove(struct platform_device *pdev)
+{
+	struct img_spdif_out *spdif = platform_get_drvdata(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+	if (!pm_runtime_status_suspended(&pdev->dev))
+		img_spdif_out_suspend(&pdev->dev);
+
+	clk_disable_unprepare(spdif->clk_sys);
+
+	return 0;
+}
+
+static const struct of_device_id img_spdif_out_of_match[] = {
+	{ .compatible = "img,spdif-out" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, img_spdif_out_of_match);
+
+static const struct dev_pm_ops img_spdif_out_pm_ops = {
+	SET_RUNTIME_PM_OPS(img_spdif_out_suspend,
+			   img_spdif_out_resume, NULL)
+};
+
+static struct platform_driver img_spdif_out_driver = {
+	.driver = {
+		.name = "img-spdif-out",
+		.of_match_table = img_spdif_out_of_match,
+		.pm = &img_spdif_out_pm_ops
+	},
+	.probe = img_spdif_out_probe,
+	.remove = img_spdif_out_dev_remove
+};
+module_platform_driver(img_spdif_out_driver);
+
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_DESCRIPTION("IMG SPDIF Output driver");
+MODULE_LICENSE("GPL v2");

sound/soc/img/pistachio-internal-dac.c

+/*
+ * Pistachio internal dac driver
+ *
+ * Copyright (C) 2015 Imagination Technologies Ltd.
+ *
+ * Author: Damien Horsley <Damien.Horsley@imgtec.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+
+#define PISTACHIO_INTERNAL_DAC_CTRL			0x40
+#define PISTACHIO_INTERNAL_DAC_CTRL_PWR_SEL_MASK	0x2
+#define PISTACHIO_INTERNAL_DAC_CTRL_PWRDN_MASK		0x1
+
+#define PISTACHIO_INTERNAL_DAC_SRST			0x44
+#define PISTACHIO_INTERNAL_DAC_SRST_MASK		0x1
+
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL			0x48
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_ADDR_SHIFT	0
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_ADDR_MASK	0xFFF
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_WE_MASK		0x1000
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_WDATA_SHIFT	13
+#define PISTACHIO_INTERNAL_DAC_GTI_CTRL_WDATA_MASK	0x1FE000
+
+#define PISTACHIO_INTERNAL_DAC_PWR			0x1
+#define PISTACHIO_INTERNAL_DAC_PWR_MASK			0x1
+
+#define PISTACHIO_INTERNAL_DAC_FORMATS (SNDRV_PCM_FMTBIT_S24_LE |  \
+					SNDRV_PCM_FMTBIT_S32_LE)
+
+/* codec private data */
+struct pistachio_internal_dac {
+	struct regmap *regmap;
+	struct regulator *supply;
+	bool mute;
+};
+
+static const struct snd_kcontrol_new pistachio_internal_dac_snd_controls[] = {
+	SOC_SINGLE("Playback Switch", PISTACHIO_INTERNAL_DAC_CTRL, 2, 1, 1)
+};
+
+static const struct snd_soc_dapm_widget pistachio_internal_dac_widgets[] = {
+	SND_SOC_DAPM_DAC("DAC", "Playback", SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_OUTPUT("AOUTL"),
+	SND_SOC_DAPM_OUTPUT("AOUTR"),
+};
+
+static const struct snd_soc_dapm_route pistachio_internal_dac_routes[] = {
+	{ "AOUTL", NULL, "DAC" },
+	{ "AOUTR", NULL, "DAC" },
+};
+
+static void pistachio_internal_dac_reg_writel(struct regmap *top_regs,
+						u32 val, u32 reg)
+{
+	regmap_update_bits(top_regs, PISTACHIO_INTERNAL_DAC_GTI_CTRL,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_ADDR_MASK,
+			reg << PISTACHIO_INTERNAL_DAC_GTI_CTRL_ADDR_SHIFT);
+
+	regmap_update_bits(top_regs, PISTACHIO_INTERNAL_DAC_GTI_CTRL,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_WDATA_MASK,
+			val << PISTACHIO_INTERNAL_DAC_GTI_CTRL_WDATA_SHIFT);
+
+	regmap_update_bits(top_regs, PISTACHIO_INTERNAL_DAC_GTI_CTRL,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_WE_MASK,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_WE_MASK);
+
+	regmap_update_bits(top_regs, PISTACHIO_INTERNAL_DAC_GTI_CTRL,
+			PISTACHIO_INTERNAL_DAC_GTI_CTRL_WE_MASK, 0);
+}
+
+static void pistachio_internal_dac_pwr_off(struct pistachio_internal_dac *dac)
+{
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_CTRL,
+		PISTACHIO_INTERNAL_DAC_CTRL_PWRDN_MASK,
+		PISTACHIO_INTERNAL_DAC_CTRL_PWRDN_MASK);
+
+	pistachio_internal_dac_reg_writel(dac->regmap, 0,
+					PISTACHIO_INTERNAL_DAC_PWR);
+}
+
+static void pistachio_internal_dac_pwr_on(struct pistachio_internal_dac *dac)
+{
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_SRST,
+			PISTACHIO_INTERNAL_DAC_SRST_MASK,
+			PISTACHIO_INTERNAL_DAC_SRST_MASK);
+
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_SRST,
+			PISTACHIO_INTERNAL_DAC_SRST_MASK, 0);
+
+	pistachio_internal_dac_reg_writel(dac->regmap,
+					PISTACHIO_INTERNAL_DAC_PWR_MASK,
+					PISTACHIO_INTERNAL_DAC_PWR);
+
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_CTRL,
+			PISTACHIO_INTERNAL_DAC_CTRL_PWRDN_MASK, 0);
+}
+
+static struct snd_soc_dai_driver pistachio_internal_dac_dais[] = {
+	{
+		.name = "pistachio_internal_dac",
+		.playback = {
+			.stream_name = "Playback",
+			.channels_min = 2,
+			.channels_max = 2,
+			.rates = SNDRV_PCM_RATE_8000_48000,
+			.formats = PISTACHIO_INTERNAL_DAC_FORMATS,
+		}
+	},
+};
+
+static int pistachio_internal_dac_codec_probe(struct snd_soc_codec *codec)
+{
+	struct pistachio_internal_dac *dac = snd_soc_codec_get_drvdata(codec);
+
+	snd_soc_codec_init_regmap(codec, dac->regmap);
+
+	return 0;
+}
+
+static const struct snd_soc_codec_driver pistachio_internal_dac_driver = {
+	.probe = pistachio_internal_dac_codec_probe,
+	.idle_bias_off = true,
+	.controls = pistachio_internal_dac_snd_controls,
+	.num_controls = ARRAY_SIZE(pistachio_internal_dac_snd_controls),
+	.dapm_widgets = pistachio_internal_dac_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(pistachio_internal_dac_widgets),
+	.dapm_routes = pistachio_internal_dac_routes,
+	.num_dapm_routes = ARRAY_SIZE(pistachio_internal_dac_routes),
+};
+
+static int pistachio_internal_dac_probe(struct platform_device *pdev)
+{
+	struct pistachio_internal_dac *dac;
+	int ret, voltage;
+	struct device *dev = &pdev->dev;
+	u32 reg;
+
+	dac = devm_kzalloc(dev, sizeof(*dac), GFP_KERNEL);
+
+	if (!dac)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, dac);
+
+	dac->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
+							    "img,cr-top");
+	if (IS_ERR(dac->regmap))
+		return PTR_ERR(dac->regmap);
+
+	dac->supply = devm_regulator_get(dev, "VDD");
+	if (IS_ERR(dac->supply)) {
+		ret = PTR_ERR(dac->supply);
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "failed to acquire supply 'VDD-supply': %d\n", ret);
+		return ret;
+	}
+
+	ret = regulator_enable(dac->supply);
+	if (ret) {
+		dev_err(dev, "failed to enable supply: %d\n", ret);
+		return ret;
+	}
+
+	voltage = regulator_get_voltage(dac->supply);
+
+	switch (voltage) {
+	case 1800000:
+		reg = 0;
+		break;
+	case 3300000:
+		reg = PISTACHIO_INTERNAL_DAC_CTRL_PWR_SEL_MASK;
+		break;
+	default:
+		dev_err(dev, "invalid voltage: %d\n", voltage);
+		ret = -EINVAL;
+		goto err_regulator;
+	}
+
+	regmap_update_bits(dac->regmap, PISTACHIO_INTERNAL_DAC_CTRL,
+			PISTACHIO_INTERNAL_DAC_CTRL_PWR_SEL_MASK, reg);
+
+	pistachio_internal_dac_pwr_off(dac);
+	pistachio_internal_dac_pwr_on(dac);
+
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+	pm_runtime_idle(dev);
+
+	ret = snd_soc_register_codec(dev, &pistachio_internal_dac_driver,
+			pistachio_internal_dac_dais,
+			ARRAY_SIZE(pistachio_internal_dac_dais));
+	if (ret) {
+		dev_err(dev, "failed to register codec: %d\n", ret);
+		goto err_pwr;
+	}
+
+	return 0;
+
+err_pwr:
+	pm_runtime_disable(&pdev->dev);
+	pistachio_internal_dac_pwr_off(dac);
+err_regulator:
+	regulator_disable(dac->supply);
+
+	return ret;
+}
+
+static int pistachio_internal_dac_remove(struct platform_device *pdev)
+{
+	struct pistachio_internal_dac *dac = dev_get_drvdata(&pdev->dev);
+
+	snd_soc_unregister_codec(&pdev->dev);
+	pm_runtime_disable(&pdev->dev);
+	pistachio_internal_dac_pwr_off(dac);
+	regulator_disable(dac->supply);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int pistachio_internal_dac_rt_resume(struct device *dev)
+{
+	struct pistachio_internal_dac *dac = dev_get_drvdata(dev);
+	int ret;
+
+	ret = regulator_enable(dac->supply);
+	if (ret) {
+		dev_err(dev, "failed to enable supply: %d\n", ret);
+		return ret;
+	}
+
+	pistachio_internal_dac_pwr_on(dac);
+
+	return 0;
+}
+
+static int pistachio_internal_dac_rt_suspend(struct device *dev)
+{
+	struct pistachio_internal_dac *dac = dev_get_drvdata(dev);
+
+	pistachio_internal_dac_pwr_off(dac);
+
+	regulator_disable(dac->supply);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops pistachio_internal_dac_pm_ops = {
+	SET_RUNTIME_PM_OPS(pistachio_internal_dac_rt_suspend,
+			pistachio_internal_dac_rt_resume, NULL)
+};
+
+static const struct of_device_id pistachio_internal_dac_of_match[] = {
+	{ .compatible = "img,pistachio-internal-dac" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, pistachio_internal_dac_of_match);
+
+static struct platform_driver pistachio_internal_dac_plat_driver = {
+	.driver = {
+		.name = "img-pistachio-internal-dac",
+		.of_match_table = pistachio_internal_dac_of_match,
+		.pm = &pistachio_internal_dac_pm_ops
+	},
+	.probe = pistachio_internal_dac_probe,
+	.remove = pistachio_internal_dac_remove
+};
+module_platform_driver(pistachio_internal_dac_plat_driver);
+
+MODULE_DESCRIPTION("Pistachio Internal DAC driver");
+MODULE_AUTHOR("Damien Horsley <Damien.Horsley@imgtec.com>");
+MODULE_LICENSE("GPL v2");

sound/soc/intel/Kconfig

@@ -24,6 +24,7 @@ config SND_SST_IPC_PCI
 config SND_SST_IPC_ACPI
 	tristate
 	select SND_SST_IPC
+	select SND_SOC_INTEL_SST
 	depends on ACPI
 
 config SND_SOC_INTEL_SST
@@ -43,7 +44,7 @@ config SND_SOC_INTEL_BAYTRAIL
 config SND_SOC_INTEL_HASWELL_MACH
 	tristate "ASoC Audio DSP support for Intel Haswell Lynxpoint"
 	depends on X86_INTEL_LPSS && I2C && I2C_DESIGNWARE_PLATFORM
-	depends on DW_DMAC_CORE
+	depends on DW_DMAC_CORE=y
 	select SND_SOC_INTEL_SST
 	select SND_SOC_INTEL_HASWELL
 	select SND_SOC_RT5640
@@ -56,18 +57,19 @@ config SND_SOC_INTEL_HASWELL_MACH
 config SND_SOC_INTEL_BYT_RT5640_MACH
 	tristate "ASoC Audio driver for Intel Baytrail with RT5640 codec"
 	depends on X86_INTEL_LPSS && I2C
-	depends on DW_DMAC_CORE
+	depends on DW_DMAC_CORE=y && (SND_SOC_INTEL_BYTCR_RT5640_MACH = n)
 	select SND_SOC_INTEL_SST
 	select SND_SOC_INTEL_BAYTRAIL
 	select SND_SOC_RT5640
 	help
 	  This adds audio driver for Intel Baytrail platform based boards
-	  with the RT5640 audio codec.
+	  with the RT5640 audio codec. This driver is deprecated, use
+	  SND_SOC_INTEL_BYTCR_RT5640_MACH instead for better functionality
 
 config SND_SOC_INTEL_BYT_MAX98090_MACH
 	tristate "ASoC Audio driver for Intel Baytrail with MAX98090 codec"
 	depends on X86_INTEL_LPSS && I2C
-	depends on DW_DMAC_CORE
+	depends on DW_DMAC_CORE=y
 	select SND_SOC_INTEL_SST
 	select SND_SOC_INTEL_BAYTRAIL
 	select SND_SOC_MAX98090
@@ -79,7 +81,7 @@ config SND_SOC_INTEL_BROADWELL_MACH
 	tristate "ASoC Audio DSP support for Intel Broadwell Wildcatpoint"
 	depends on X86_INTEL_LPSS && I2C && DW_DMAC && \
 		   I2C_DESIGNWARE_PLATFORM
-	depends on DW_DMAC_CORE
+	depends on DW_DMAC_CORE=y
 	select SND_SOC_INTEL_SST
 	select SND_SOC_INTEL_HASWELL
 	select SND_SOC_RT286
@@ -90,14 +92,14 @@ config SND_SOC_INTEL_BROADWELL_MACH
 	  If unsure select "N".
 
 config SND_SOC_INTEL_BYTCR_RT5640_MACH
-	tristate "ASoC Audio DSP Support for MID BYT Platform"
+        tristate "ASoC Audio driver for Intel Baytrail and Baytrail-CR with RT5640 codec"
 	depends on X86 && I2C
 	select SND_SOC_RT5640
 	select SND_SST_MFLD_PLATFORM
 	select SND_SST_IPC_ACPI
 	help
-	  This adds support for ASoC machine driver for Intel(R) MID Baytrail platform
-          used as alsa device in audio substem in Intel(R) MID devices
+          This adds support for ASoC machine driver for Intel(R) Baytrail and Baytrail-CR
+          platforms with RT5640 audio codec.
           Say Y if you have such a device
           If unsure select "N".
 
@@ -154,3 +156,31 @@ config SND_SOC_INTEL_SKL_RT286_MACH
 	   with RT286 I2S audio codec.
 	   Say Y if you have such a device
 	   If unsure select "N".
+
+config SND_SOC_INTEL_SKL_NAU88L25_SSM4567_MACH
+	tristate "ASoC Audio driver for SKL with NAU88L25 and SSM4567 in I2S Mode"
+	depends on X86_INTEL_LPSS && I2C
+	select SND_SOC_INTEL_SST
+	select SND_SOC_INTEL_SKYLAKE
+	select SND_SOC_NAU8825
+	select SND_SOC_SSM4567
+	select SND_SOC_DMIC
+	help
+	  This adds support for ASoC Onboard Codec I2S machine driver. This will
+	  create an alsa sound card for NAU88L25 + SSM4567.
+	  Say Y if you have such a device
+	  If unsure select "N".
+
+config SND_SOC_INTEL_SKL_NAU88L25_MAX98357A_MACH
+	tristate "ASoC Audio driver for SKL with NAU88L25 and MAX98357A in I2S Mode"
+	depends on X86_INTEL_LPSS && I2C
+	select SND_SOC_INTEL_SST
+	select SND_SOC_INTEL_SKYLAKE
+	select SND_SOC_NAU8825
+	select SND_SOC_MAX98357A
+	select SND_SOC_DMIC
+	help
+	  This adds support for ASoC Onboard Codec I2S machine driver. This will
+	  create an alsa sound card for NAU88L25 + MAX98357A.
+	  Say Y if you have such a device
+	  If unsure select "N".

sound/soc/intel/atom/sst-atom-controls.c

@@ -443,7 +443,7 @@ static int sst_gain_get(struct snd_kcontrol *kcontrol,
 		break;
 
 	case SST_GAIN_MUTE:
-		ucontrol->value.integer.value[0] = gv->mute ? 1 : 0;
+		ucontrol->value.integer.value[0] = gv->mute ? 0 : 1;
 		break;
 
 	case SST_GAIN_RAMP_DURATION:
@@ -479,7 +479,7 @@ static int sst_gain_put(struct snd_kcontrol *kcontrol,
 		break;
 
 	case SST_GAIN_MUTE:
-		gv->mute = !!ucontrol->value.integer.value[0];
+		gv->mute = !ucontrol->value.integer.value[0];
 		dev_dbg(cmpnt->dev, "%s: Mute %d\n", mc->pname, gv->mute);
 		break;
 
@@ -1109,6 +1109,7 @@ static const struct snd_soc_dapm_route intercon[] = {
 	{"media0_in", NULL, "Compress Playback"},
 	{"media1_in", NULL, "Headset Playback"},
 	{"media2_in", NULL, "pcm0_out"},
+	{"media3_in", NULL, "Deepbuffer Playback"},
 
 	{"media0_out mix 0", "media0_in Switch", "media0_in"},
 	{"media0_out mix 0", "media1_in Switch", "media1_in"},

sound/soc/intel/atom/sst-atom-controls.h

@@ -28,6 +28,7 @@
 
 enum {
 	MERR_DPCM_AUDIO = 0,
+	MERR_DPCM_DEEP_BUFFER,
 	MERR_DPCM_COMPR,
 };
 

sound/soc/intel/atom/sst-mfld-platform-pcm.c

@@ -98,6 +98,7 @@ static struct sst_dev_stream_map dpcm_strm_map[] = {
 	{MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA1_IN, SST_TASK_ID_MEDIA, 0},
 	{MERR_DPCM_COMPR, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA0_IN, SST_TASK_ID_MEDIA, 0},
 	{MERR_DPCM_AUDIO, 0, SNDRV_PCM_STREAM_CAPTURE, PIPE_PCM1_OUT, SST_TASK_ID_MEDIA, 0},
+	{MERR_DPCM_DEEP_BUFFER, 0, SNDRV_PCM_STREAM_PLAYBACK, PIPE_MEDIA3_IN, SST_TASK_ID_MEDIA, 0},
 };
 
 static int sst_media_digital_mute(struct snd_soc_dai *dai, int mute, int stream)
@@ -500,14 +501,25 @@ static struct snd_soc_dai_driver sst_platform_dai[] = {
 		.channels_min = SST_STEREO,
 		.channels_max = SST_STEREO,
 		.rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
 	},
 	.capture = {
 		.stream_name = "Headset Capture",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+	},
+},
+{
+	.name = "deepbuffer-cpu-dai",
+	.ops = &sst_media_dai_ops,
+	.playback = {
+		.stream_name = "Deepbuffer Playback",
+		.channels_min = SST_STEREO,
+		.channels_max = SST_STEREO,
+		.rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
 	},
 },
 {
@@ -516,10 +528,6 @@ static struct snd_soc_dai_driver sst_platform_dai[] = {
 	.ops = &sst_compr_dai_ops,
 	.playback = {
 		.stream_name = "Compress Playback",
-		.channels_min = SST_STEREO,
-		.channels_max = SST_STEREO,
-		.rates = SNDRV_PCM_RATE_48000,
-		.formats = SNDRV_PCM_FMTBIT_S16_LE,
 	},
 },
 /* BE CPU  Dais */

sound/soc/intel/atom/sst/sst_acpi.c

@@ -40,18 +40,9 @@
 #include <acpi/acpi_bus.h>
 #include "../sst-mfld-platform.h"
 #include "../../common/sst-dsp.h"
+#include "../../common/sst-acpi.h"
 #include "sst.h"
 
-struct sst_machines {
-	char *codec_id;
-	char board[32];
-	char machine[32];
-	void (*machine_quirk)(void);
-	char firmware[FW_NAME_SIZE];
-	struct sst_platform_info *pdata;
-
-};
-
 /* LPE viewpoint addresses */
 #define SST_BYT_IRAM_PHY_START	0xff2c0000
 #define SST_BYT_IRAM_PHY_END	0xff2d4000
@@ -223,37 +214,16 @@ static int sst_platform_get_resources(struct intel_sst_drv *ctx)
 	return 0;
 }
 
-static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level,
-				       void *context, void **ret)
-{
-	*(bool *)context = true;
-	return AE_OK;
-}
-
-static struct sst_machines *sst_acpi_find_machine(
-	struct sst_machines *machines)
-{
-	struct sst_machines *mach;
-	bool found = false;
-
-	for (mach = machines; mach->codec_id; mach++)
-		if (ACPI_SUCCESS(acpi_get_devices(mach->codec_id,
-						  sst_acpi_mach_match,
-						  &found, NULL)) && found)
-			return mach;
-
-	return NULL;
-}
-
 static int sst_acpi_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	int ret = 0;
 	struct intel_sst_drv *ctx;
 	const struct acpi_device_id *id;
-	struct sst_machines *mach;
+	struct sst_acpi_mach *mach;
 	struct platform_device *mdev;
 	struct platform_device *plat_dev;
+	struct sst_platform_info *pdata;
 	unsigned int dev_id;
 
 	id = acpi_match_device(dev->driver->acpi_match_table, dev);
@@ -261,12 +231,13 @@ static int sst_acpi_probe(struct platform_device *pdev)
 		return -ENODEV;
 	dev_dbg(dev, "for %s", id->id);
 
-	mach = (struct sst_machines *)id->driver_data;
+	mach = (struct sst_acpi_mach *)id->driver_data;
 	mach = sst_acpi_find_machine(mach);
 	if (mach == NULL) {
 		dev_err(dev, "No matching machine driver found\n");
 		return -ENODEV;
 	}
+	pdata = mach->pdata;
 
 	ret = kstrtouint(id->id, 16, &dev_id);
 	if (ret < 0) {
@@ -276,16 +247,16 @@ static int sst_acpi_probe(struct platform_device *pdev)
 
 	dev_dbg(dev, "ACPI device id: %x\n", dev_id);
 
-	plat_dev = platform_device_register_data(dev, mach->pdata->platform, -1, NULL, 0);
+	plat_dev = platform_device_register_data(dev, pdata->platform, -1, NULL, 0);
 	if (IS_ERR(plat_dev)) {
-		dev_err(dev, "Failed to create machine device: %s\n", mach->pdata->platform);
+		dev_err(dev, "Failed to create machine device: %s\n", pdata->platform);
 		return PTR_ERR(plat_dev);
 	}
 
 	/* Create platform device for sst machine driver */
-	mdev = platform_device_register_data(dev, mach->machine, -1, NULL, 0);
+	mdev = platform_device_register_data(dev, mach->drv_name, -1, NULL, 0);
 	if (IS_ERR(mdev)) {
-		dev_err(dev, "Failed to create machine device: %s\n", mach->machine);
+		dev_err(dev, "Failed to create machine device: %s\n", mach->drv_name);
 		return PTR_ERR(mdev);
 	}
 
@@ -294,8 +265,8 @@ static int sst_acpi_probe(struct platform_device *pdev)
 		return ret;
 
 	/* Fill sst platform data */
-	ctx->pdata = mach->pdata;
-	strcpy(ctx->firmware_name, mach->firmware);
+	ctx->pdata = pdata;
+	strcpy(ctx->firmware_name, mach->fw_filename);
 
 	ret = sst_platform_get_resources(ctx);
 	if (ret)
@@ -342,22 +313,22 @@ static int sst_acpi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static struct sst_machines sst_acpi_bytcr[] = {
-	{"10EC5640", "T100", "bytt100_rt5640", NULL, "intel/fw_sst_0f28.bin",
+static struct sst_acpi_mach sst_acpi_bytcr[] = {
+	{"10EC5640", "bytcr_rt5640", "intel/fw_sst_0f28.bin", "bytcr_rt5640", NULL,
 						&byt_rvp_platform_data },
 	{},
 };
 
 /* Cherryview-based platforms: CherryTrail and Braswell */
-static struct sst_machines sst_acpi_chv[] = {
-	{"10EC5670", "cht-bsw", "cht-bsw-rt5672", NULL, "intel/fw_sst_22a8.bin",
+static struct sst_acpi_mach sst_acpi_chv[] = {
+	{"10EC5670", "cht-bsw-rt5672", "intel/fw_sst_22a8.bin", "cht-bsw", NULL,
+						&chv_platform_data },
+	{"10EC5645", "cht-bsw-rt5645", "intel/fw_sst_22a8.bin", "cht-bsw", NULL,
 						&chv_platform_data },
-	{"10EC5645", "cht-bsw", "cht-bsw-rt5645", NULL, "intel/fw_sst_22a8.bin",
+	{"10EC5650", "cht-bsw-rt5645", "intel/fw_sst_22a8.bin", "cht-bsw", NULL,
 						&chv_platform_data },
-	{"10EC5650", "cht-bsw", "cht-bsw-rt5645", NULL, "intel/fw_sst_22a8.bin",
+	{"193C9890", "cht-bsw-max98090", "intel/fw_sst_22a8.bin", "cht-bsw", NULL,
 						&chv_platform_data },
-	{"193C9890", "cht-bsw", "cht-bsw-max98090", NULL,
-	"intel/fw_sst_22a8.bin", &chv_platform_data },
 	{},
 };
 

sound/soc/intel/atom/sst/sst_stream.c

@@ -108,7 +108,7 @@ int sst_alloc_stream_mrfld(struct intel_sst_drv *sst_drv_ctx, void *params)
 			str_id, pipe_id);
 	ret = sst_prepare_and_post_msg(sst_drv_ctx, task_id, IPC_CMD,
 			IPC_IA_ALLOC_STREAM_MRFLD, pipe_id, sizeof(alloc_param),
-			&alloc_param, data, true, true, false, true);
+			&alloc_param, &data, true, true, false, true);
 
 	if (ret < 0) {
 		dev_err(sst_drv_ctx->dev, "FW alloc failed ret %d\n", ret);

sound/soc/intel/boards/Makefile

@@ -7,6 +7,8 @@ snd-soc-sst-cht-bsw-rt5672-objs := cht_bsw_rt5672.o
 snd-soc-sst-cht-bsw-rt5645-objs := cht_bsw_rt5645.o
 snd-soc-sst-cht-bsw-max98090_ti-objs := cht_bsw_max98090_ti.o
 snd-soc-skl_rt286-objs := skl_rt286.o
+snd-skl_nau88l25_max98357a-objs := skl_nau88l25_max98357a.o
+snd-soc-skl_nau88l25_ssm4567-objs := skl_nau88l25_ssm4567.o
 
 obj-$(CONFIG_SND_SOC_INTEL_HASWELL_MACH) += snd-soc-sst-haswell.o
 obj-$(CONFIG_SND_SOC_INTEL_BYT_RT5640_MACH) += snd-soc-sst-byt-rt5640-mach.o
@@ -17,3 +19,5 @@ obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5672_MACH) += snd-soc-sst-cht-bsw-rt5672.o
 obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_RT5645_MACH) += snd-soc-sst-cht-bsw-rt5645.o
 obj-$(CONFIG_SND_SOC_INTEL_CHT_BSW_MAX98090_TI_MACH) += snd-soc-sst-cht-bsw-max98090_ti.o
 obj-$(CONFIG_SND_SOC_INTEL_SKL_RT286_MACH) += snd-soc-skl_rt286.o
+obj-$(CONFIG_SND_SOC_INTEL_SKL_NAU88L25_MAX98357A_MACH) += snd-skl_nau88l25_max98357a.o
+obj-$(CONFIG_SND_SOC_INTEL_SKL_NAU88L25_SSM4567_MACH) += snd-soc-skl_nau88l25_ssm4567.o

sound/soc/intel/boards/bytcr_rt5640.c

@@ -20,51 +20,75 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/acpi.h>
 #include <linux/device.h>
+#include <linux/dmi.h>
 #include <linux/slab.h>
-#include <linux/input.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
+#include <sound/jack.h>
 #include "../../codecs/rt5640.h"
 #include "../atom/sst-atom-controls.h"
 
-static const struct snd_soc_dapm_widget byt_dapm_widgets[] = {
+static const struct snd_soc_dapm_widget byt_rt5640_widgets[] = {
 	SND_SOC_DAPM_HP("Headphone", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
-	SND_SOC_DAPM_MIC("Int Mic", NULL),
-	SND_SOC_DAPM_SPK("Ext Spk", NULL),
+	SND_SOC_DAPM_MIC("Internal Mic", NULL),
+	SND_SOC_DAPM_SPK("Speaker", NULL),
 };
 
-static const struct snd_soc_dapm_route byt_audio_map[] = {
-	{"IN2P", NULL, "Headset Mic"},
-	{"IN2N", NULL, "Headset Mic"},
-	{"Headset Mic", NULL, "MICBIAS1"},
-	{"IN1P", NULL, "MICBIAS1"},
-	{"LDO2", NULL, "Int Mic"},
-	{"Headphone", NULL, "HPOL"},
-	{"Headphone", NULL, "HPOR"},
-	{"Ext Spk", NULL, "SPOLP"},
-	{"Ext Spk", NULL, "SPOLN"},
-	{"Ext Spk", NULL, "SPORP"},
-	{"Ext Spk", NULL, "SPORN"},
-
+static const struct snd_soc_dapm_route byt_rt5640_audio_map[] = {
 	{"AIF1 Playback", NULL, "ssp2 Tx"},
 	{"ssp2 Tx", NULL, "codec_out0"},
 	{"ssp2 Tx", NULL, "codec_out1"},
 	{"codec_in0", NULL, "ssp2 Rx"},
 	{"codec_in1", NULL, "ssp2 Rx"},
 	{"ssp2 Rx", NULL, "AIF1 Capture"},
+
+	{"Headset Mic", NULL, "MICBIAS1"},
+	{"IN2P", NULL, "Headset Mic"},
+	{"Headphone", NULL, "HPOL"},
+	{"Headphone", NULL, "HPOR"},
+	{"Speaker", NULL, "SPOLP"},
+	{"Speaker", NULL, "SPOLN"},
+	{"Speaker", NULL, "SPORP"},
+	{"Speaker", NULL, "SPORN"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic1_map[] = {
+	{"DMIC1", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5640_intmic_dmic2_map[] = {
+	{"DMIC2", NULL, "Internal Mic"},
+};
+
+static const struct snd_soc_dapm_route byt_rt5640_intmic_in1_map[] = {
+	{"Internal Mic", NULL, "MICBIAS1"},
+	{"IN1P", NULL, "Internal Mic"},
+};
+
+enum {
+	BYT_RT5640_DMIC1_MAP,
+	BYT_RT5640_DMIC2_MAP,
+	BYT_RT5640_IN1_MAP,
 };
 
-static const struct snd_kcontrol_new byt_mc_controls[] = {
+#define BYT_RT5640_MAP(quirk)	((quirk) & 0xff)
+#define BYT_RT5640_DMIC_EN	BIT(16)
+
+static unsigned long byt_rt5640_quirk = BYT_RT5640_DMIC1_MAP |
+					BYT_RT5640_DMIC_EN;
+
+static const struct snd_kcontrol_new byt_rt5640_controls[] = {
 	SOC_DAPM_PIN_SWITCH("Headphone"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
-	SOC_DAPM_PIN_SWITCH("Int Mic"),
-	SOC_DAPM_PIN_SWITCH("Ext Spk"),
+	SOC_DAPM_PIN_SWITCH("Internal Mic"),
+	SOC_DAPM_PIN_SWITCH("Speaker"),
 };
 
-static int byt_aif1_hw_params(struct snd_pcm_substream *substream,
+static int byt_rt5640_aif1_hw_params(struct snd_pcm_substream *substream,
 					struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
@@ -92,7 +116,82 @@ static int byt_aif1_hw_params(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static const struct snd_soc_pcm_stream byt_dai_params = {
+static int byt_rt5640_quirk_cb(const struct dmi_system_id *id)
+{
+	byt_rt5640_quirk = (unsigned long)id->driver_data;
+	return 1;
+}
+
+static const struct dmi_system_id byt_rt5640_quirk_table[] = {
+	{
+		.callback = byt_rt5640_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "T100TA"),
+		},
+		.driver_data = (unsigned long *)BYT_RT5640_IN1_MAP,
+	},
+	{
+		.callback = byt_rt5640_quirk_cb,
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "DellInc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Venue 8 Pro 5830"),
+		},
+		.driver_data = (unsigned long *)(BYT_RT5640_DMIC2_MAP |
+						 BYT_RT5640_DMIC_EN),
+	},
+	{}
+};
+
+static int byt_rt5640_init(struct snd_soc_pcm_runtime *runtime)
+{
+	int ret;
+	struct snd_soc_codec *codec = runtime->codec;
+	struct snd_soc_card *card = runtime->card;
+	const struct snd_soc_dapm_route *custom_map;
+	int num_routes;
+
+	card->dapm.idle_bias_off = true;
+
+	ret = snd_soc_add_card_controls(card, byt_rt5640_controls,
+					ARRAY_SIZE(byt_rt5640_controls));
+	if (ret) {
+		dev_err(card->dev, "unable to add card controls\n");
+		return ret;
+	}
+
+	dmi_check_system(byt_rt5640_quirk_table);
+	switch (BYT_RT5640_MAP(byt_rt5640_quirk)) {
+	case BYT_RT5640_IN1_MAP:
+		custom_map = byt_rt5640_intmic_in1_map;
+		num_routes = ARRAY_SIZE(byt_rt5640_intmic_in1_map);
+		break;
+	case BYT_RT5640_DMIC2_MAP:
+		custom_map = byt_rt5640_intmic_dmic2_map;
+		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic2_map);
+		break;
+	default:
+		custom_map = byt_rt5640_intmic_dmic1_map;
+		num_routes = ARRAY_SIZE(byt_rt5640_intmic_dmic1_map);
+	}
+
+	ret = snd_soc_dapm_add_routes(&card->dapm, custom_map, num_routes);
+	if (ret)
+		return ret;
+
+	if (byt_rt5640_quirk & BYT_RT5640_DMIC_EN) {
+		ret = rt5640_dmic_enable(codec, 0, 0);
+		if (ret)
+			return ret;
+	}
+
+	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
+	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
+
+	return ret;
+}
+
+static const struct snd_soc_pcm_stream byt_rt5640_dai_params = {
 	.formats = SNDRV_PCM_FMTBIT_S24_LE,
 	.rate_min = 48000,
 	.rate_max = 48000,
@@ -100,13 +199,14 @@ static const struct snd_soc_pcm_stream byt_dai_params = {
 	.channels_max = 2,
 };
 
-static int byt_codec_fixup(struct snd_soc_pcm_runtime *rtd,
+static int byt_rt5640_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 			    struct snd_pcm_hw_params *params)
 {
 	struct snd_interval *rate = hw_param_interval(params,
 			SNDRV_PCM_HW_PARAM_RATE);
 	struct snd_interval *channels = hw_param_interval(params,
 						SNDRV_PCM_HW_PARAM_CHANNELS);
+	int ret;
 
 	/* The DSP will covert the FE rate to 48k, stereo, 24bits */
 	rate->min = rate->max = 48000;
@@ -114,24 +214,46 @@ static int byt_codec_fixup(struct snd_soc_pcm_runtime *rtd,
 
 	/* set SSP2 to 24-bit */
 	params_set_format(params, SNDRV_PCM_FORMAT_S24_LE);
+
+	/*
+	 * Default mode for SSP configuration is TDM 4 slot, override config
+	 * with explicit setting to I2S 2ch 24-bit. The word length is set with
+	 * dai_set_tdm_slot() since there is no other API exposed
+	 */
+	ret = snd_soc_dai_set_fmt(rtd->cpu_dai,
+				  SND_SOC_DAIFMT_I2S     |
+				  SND_SOC_DAIFMT_NB_IF   |
+				  SND_SOC_DAIFMT_CBS_CFS
+				  );
+	if (ret < 0) {
+		dev_err(rtd->dev, "can't set format to I2S, err %d\n", ret);
+		return ret;
+	}
+
+	ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2, 24);
+	if (ret < 0) {
+		dev_err(rtd->dev, "can't set I2S config, err %d\n", ret);
+		return ret;
+	}
+
 	return 0;
 }
 
-static int byt_aif1_startup(struct snd_pcm_substream *substream)
+static int byt_rt5640_aif1_startup(struct snd_pcm_substream *substream)
 {
 	return snd_pcm_hw_constraint_single(substream->runtime,
 			SNDRV_PCM_HW_PARAM_RATE, 48000);
 }
 
-static struct snd_soc_ops byt_aif1_ops = {
-	.startup = byt_aif1_startup,
+static struct snd_soc_ops byt_rt5640_aif1_ops = {
+	.startup = byt_rt5640_aif1_startup,
 };
 
-static struct snd_soc_ops byt_be_ssp2_ops = {
-	.hw_params = byt_aif1_hw_params,
+static struct snd_soc_ops byt_rt5640_be_ssp2_ops = {
+	.hw_params = byt_rt5640_aif1_hw_params,
 };
 
-static struct snd_soc_dai_link byt_dailink[] = {
+static struct snd_soc_dai_link byt_rt5640_dais[] = {
 	[MERR_DPCM_AUDIO] = {
 		.name = "Baytrail Audio Port",
 		.stream_name = "Baytrail Audio",
@@ -143,7 +265,20 @@ static struct snd_soc_dai_link byt_dailink[] = {
 		.dynamic = 1,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
-		.ops = &byt_aif1_ops,
+		.ops = &byt_rt5640_aif1_ops,
+	},
+	[MERR_DPCM_DEEP_BUFFER] = {
+		.name = "Deep-Buffer Audio Port",
+		.stream_name = "Deep-Buffer Audio",
+		.cpu_dai_name = "deepbuffer-cpu-dai",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+		.platform_name = "sst-mfld-platform",
+		.ignore_suspend = 1,
+		.nonatomic = true,
+		.dynamic = 1,
+		.dpcm_playback = 1,
+		.ops = &byt_rt5640_aif1_ops,
 	},
 	[MERR_DPCM_COMPR] = {
 		.name = "Baytrail Compressed Port",
@@ -164,55 +299,57 @@ static struct snd_soc_dai_link byt_dailink[] = {
 		.codec_name = "i2c-10EC5640:00",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 						| SND_SOC_DAIFMT_CBS_CFS,
-		.be_hw_params_fixup = byt_codec_fixup,
+		.be_hw_params_fixup = byt_rt5640_codec_fixup,
 		.ignore_suspend = 1,
 		.dpcm_playback = 1,
 		.dpcm_capture = 1,
-		.ops = &byt_be_ssp2_ops,
+		.init = byt_rt5640_init,
+		.ops = &byt_rt5640_be_ssp2_ops,
 	},
 };
 
 /* SoC card */
-static struct snd_soc_card snd_soc_card_byt = {
-	.name = "baytrailcraudio",
+static struct snd_soc_card byt_rt5640_card = {
+	.name = "bytcr-rt5640",
 	.owner = THIS_MODULE,
-	.dai_link = byt_dailink,
-	.num_links = ARRAY_SIZE(byt_dailink),
-	.dapm_widgets = byt_dapm_widgets,
-	.num_dapm_widgets = ARRAY_SIZE(byt_dapm_widgets),
-	.dapm_routes = byt_audio_map,
-	.num_dapm_routes = ARRAY_SIZE(byt_audio_map),
-	.controls = byt_mc_controls,
-	.num_controls = ARRAY_SIZE(byt_mc_controls),
+	.dai_link = byt_rt5640_dais,
+	.num_links = ARRAY_SIZE(byt_rt5640_dais),
+	.dapm_widgets = byt_rt5640_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(byt_rt5640_widgets),
+	.dapm_routes = byt_rt5640_audio_map,
+	.num_dapm_routes = ARRAY_SIZE(byt_rt5640_audio_map),
+	.fully_routed = true,
 };
 
-static int snd_byt_mc_probe(struct platform_device *pdev)
+static int snd_byt_rt5640_mc_probe(struct platform_device *pdev)
 {
 	int ret_val = 0;
 
 	/* register the soc card */
-	snd_soc_card_byt.dev = &pdev->dev;
+	byt_rt5640_card.dev = &pdev->dev;
+
+	ret_val = devm_snd_soc_register_card(&pdev->dev, &byt_rt5640_card);
 
-	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_byt);
 	if (ret_val) {
-		dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n", ret_val);
+		dev_err(&pdev->dev, "devm_snd_soc_register_card failed %d\n",
+			ret_val);
 		return ret_val;
 	}
-	platform_set_drvdata(pdev, &snd_soc_card_byt);
+	platform_set_drvdata(pdev, &byt_rt5640_card);
 	return ret_val;
 }
 
-static struct platform_driver snd_byt_mc_driver = {
+static struct platform_driver snd_byt_rt5640_mc_driver = {
 	.driver = {
-		.name = "bytt100_rt5640",
+		.name = "bytcr_rt5640",
 		.pm = &snd_soc_pm_ops,
 	},
-	.probe = snd_byt_mc_probe,
+	.probe = snd_byt_rt5640_mc_probe,
 };
 
-module_platform_driver(snd_byt_mc_driver);
+module_platform_driver(snd_byt_rt5640_mc_driver);
 
 MODULE_DESCRIPTION("ASoC Intel(R) Baytrail CR Machine driver");
 MODULE_AUTHOR("Subhransu S. Prusty <subhransu.s.prusty@intel.com>");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:bytt100_rt5640");
+MODULE_ALIAS("platform:bytcr_rt5640");

sound/soc/intel/boards/cht_bsw_max98090_ti.c

@@ -232,6 +232,18 @@ static struct snd_soc_dai_link cht_dailink[] = {
 		.dpcm_capture = 1,
 		.ops = &cht_aif1_ops,
 	},
+	[MERR_DPCM_DEEP_BUFFER] = {
+		.name = "Deep-Buffer Audio Port",
+		.stream_name = "Deep-Buffer Audio",
+		.cpu_dai_name = "deepbuffer-cpu-dai",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+		.platform_name = "sst-mfld-platform",
+		.nonatomic = true,
+		.dynamic = 1,
+		.dpcm_playback = 1,
+		.ops = &cht_aif1_ops,
+	},
 	[MERR_DPCM_COMPR] = {
 		.name = "Compressed Port",
 		.stream_name = "Compress",

sound/soc/intel/boards/cht_bsw_rt5645.c

@@ -260,6 +260,18 @@ static struct snd_soc_dai_link cht_dailink[] = {
 		.dpcm_capture = 1,
 		.ops = &cht_aif1_ops,
 	},
+	[MERR_DPCM_DEEP_BUFFER] = {
+		.name = "Deep-Buffer Audio Port",
+		.stream_name = "Deep-Buffer Audio",
+		.cpu_dai_name = "deepbuffer-cpu-dai",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+		.platform_name = "sst-mfld-platform",
+		.nonatomic = true,
+		.dynamic = 1,
+		.dpcm_playback = 1,
+		.ops = &cht_aif1_ops,
+	},
 	[MERR_DPCM_COMPR] = {
 		.name = "Compressed Port",
 		.stream_name = "Compress",

sound/soc/intel/boards/cht_bsw_rt5672.c

@@ -248,6 +248,18 @@ static struct snd_soc_dai_link cht_dailink[] = {
 		.dpcm_capture = 1,
 		.ops = &cht_aif1_ops,
 	},
+	[MERR_DPCM_DEEP_BUFFER] = {
+		.name = "Deep-Buffer Audio Port",
+		.stream_name = "Deep-Buffer Audio",
+		.cpu_dai_name = "deepbuffer-cpu-dai",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.codec_name = "snd-soc-dummy",
+		.platform_name = "sst-mfld-platform",
+		.nonatomic = true,
+		.dynamic = 1,
+		.dpcm_playback = 1,
+		.ops = &cht_aif1_ops,
+	},
 	[MERR_DPCM_COMPR] = {
 		.name = "Compressed Port",
 		.stream_name = "Compress",

sound/soc/intel/boards/skl_nau88l25_max98357a.c

+/*
+ * Intel Skylake I2S Machine Driver with MAXIM98357A
+ * and NAU88L25
+ *
+ * Copyright (C) 2015, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include "../../codecs/nau8825.h"
+
+#define SKL_NUVOTON_CODEC_DAI	"nau8825-hifi"
+#define SKL_MAXIM_CODEC_DAI "HiFi"
+
+static struct snd_soc_jack skylake_headset;
+static struct snd_soc_card skylake_audio_card;
+
+static inline struct snd_soc_dai *skl_get_codec_dai(struct snd_soc_card *card)
+{
+	struct snd_soc_pcm_runtime *rtd;
+
+	list_for_each_entry(rtd, &card->rtd_list, list) {
+
+		if (!strncmp(rtd->codec_dai->name, SKL_NUVOTON_CODEC_DAI,
+			     strlen(SKL_NUVOTON_CODEC_DAI)))
+			return rtd->codec_dai;
+	}
+
+	return NULL;
+}
+
+static int platform_clock_control(struct snd_soc_dapm_widget *w,
+	struct snd_kcontrol *k, int  event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct snd_soc_card *card = dapm->card;
+	struct snd_soc_dai *codec_dai;
+	int ret;
+
+	codec_dai = skl_get_codec_dai(card);
+	if (!codec_dai) {
+		dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
+		return -EIO;
+	}
+
+	if (SND_SOC_DAPM_EVENT_ON(event)) {
+		ret = snd_soc_dai_set_sysclk(codec_dai,
+				NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
+		if (ret < 0) {
+			dev_err(card->dev, "set sysclk err = %d\n", ret);
+			return -EIO;
+		}
+	} else {
+		ret = snd_soc_dai_set_sysclk(codec_dai,
+				NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
+		if (ret < 0) {
+			dev_err(card->dev, "set sysclk err = %d\n", ret);
+			return -EIO;
+		}
+	}
+
+	return ret;
+}
+
+static const struct snd_kcontrol_new skylake_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Spk"),
+};
+
+static const struct snd_soc_dapm_widget skylake_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_SPK("Spk", NULL),
+	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+	SND_SOC_DAPM_SINK("WoV Sink"),
+	SND_SOC_DAPM_SPK("DP", NULL),
+	SND_SOC_DAPM_SPK("HDMI", NULL),
+	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
+			platform_clock_control, SND_SOC_DAPM_PRE_PMU |
+			SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route skylake_map[] = {
+	/* HP jack connectors - unknown if we have jack detection */
+	{ "Headphone Jack", NULL, "HPOL" },
+	{ "Headphone Jack", NULL, "HPOR" },
+
+	/* speaker */
+	{ "Spk", NULL, "Speaker" },
+
+	/* other jacks */
+	{ "MIC", NULL, "Headset Mic" },
+	{ "DMic", NULL, "SoC DMIC" },
+
+	{"WoV Sink", NULL, "hwd_in sink"},
+	{"HDMI", NULL, "hif5 Output"},
+	{"DP", NULL, "hif6 Output"},
+
+	/* CODEC BE connections */
+	{ "HiFi Playback", NULL, "ssp0 Tx" },
+	{ "ssp0 Tx", NULL, "codec0_out" },
+
+	{ "Playback", NULL, "ssp1 Tx" },
+	{ "ssp1 Tx", NULL, "codec1_out" },
+
+	{ "codec0_in", NULL, "ssp1 Rx" },
+	{ "ssp1 Rx", NULL, "Capture" },
+
+	/* DMIC */
+	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
+	{ "DMIC01 Rx", NULL, "DMIC AIF" },
+	{ "hifi1", NULL, "iDisp Tx"},
+	{ "iDisp Tx", NULL, "iDisp_out"},
+	{ "Headphone Jack", NULL, "Platform Clock" },
+	{ "Headset Mic", NULL, "Platform Clock" },
+};
+
+static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *rate = hw_param_interval(params,
+			SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+			SNDRV_PCM_HW_PARAM_CHANNELS);
+	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+
+	/* The ADSP will covert the FE rate to 48k, stereo */
+	rate->min = rate->max = 48000;
+	channels->min = channels->max = 2;
+
+	/* set SSP0 to 24 bit */
+	snd_mask_none(fmt);
+	snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
+
+	return 0;
+}
+
+static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret;
+	struct snd_soc_codec *codec = rtd->codec;
+
+	/*
+	 * Headset buttons map to the google Reference headset.
+	 * These can be configured by userspace.
+	 */
+	ret = snd_soc_card_jack_new(&skylake_audio_card, "Headset Jack",
+			SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+			SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset,
+			NULL, 0);
+	if (ret) {
+		dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
+		return ret;
+	}
+
+	nau8825_enable_jack_detect(codec, &skylake_headset);
+
+	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
+	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "WoV Sink");
+
+	return ret;
+}
+
+static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dapm_context *dapm;
+	struct snd_soc_component *component = rtd->cpu_dai->component;
+
+	dapm = snd_soc_component_get_dapm(component);
+	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
+
+	return 0;
+}
+
+static unsigned int rates[] = {
+	48000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_rates = {
+	.count = ARRAY_SIZE(rates),
+	.list  = rates,
+	.mask = 0,
+};
+
+static unsigned int channels[] = {
+	2,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_channels = {
+	.count = ARRAY_SIZE(channels),
+	.list = channels,
+	.mask = 0,
+};
+
+static int skl_fe_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	/*
+	 * On this platform for PCM device we support,
+	 * 48Khz
+	 * stereo
+	 * 16 bit audio
+	 */
+
+	runtime->hw.channels_max = 2;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+					   &constraints_channels);
+
+	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
+
+	snd_pcm_hw_constraint_list(runtime, 0,
+				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+
+	return 0;
+}
+
+static const struct snd_soc_ops skylake_nau8825_fe_ops = {
+	.startup = skl_fe_startup,
+};
+
+static int skylake_nau8825_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai,
+			NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
+
+	if (ret < 0)
+		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
+
+	return ret;
+}
+
+static struct snd_soc_ops skylake_nau8825_ops = {
+	.hw_params = skylake_nau8825_hw_params,
+};
+
+static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
+		struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *channels = hw_param_interval(params,
+				SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	if (params_channels(params) == 2)
+		channels->min = channels->max = 2;
+	else
+		channels->min = channels->max = 4;
+
+	return 0;
+}
+
+static unsigned int channels_dmic[] = {
+	2, 4,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
+	.count = ARRAY_SIZE(channels_dmic),
+	.list = channels_dmic,
+	.mask = 0,
+};
+
+static int skylake_dmic_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	runtime->hw.channels_max = 4;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+			&constraints_dmic_channels);
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+}
+
+static struct snd_soc_ops skylake_dmic_ops = {
+	.startup = skylake_dmic_startup,
+};
+
+static unsigned int rates_16000[] = {
+	16000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_16000 = {
+	.count = ARRAY_SIZE(rates_16000),
+	.list  = rates_16000,
+};
+
+static int skylake_refcap_startup(struct snd_pcm_substream *substream)
+{
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+				SNDRV_PCM_HW_PARAM_RATE,
+				&constraints_16000);
+}
+
+static struct snd_soc_ops skylaye_refcap_ops = {
+	.startup = skylake_refcap_startup,
+};
+
+/* skylake digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link skylake_dais[] = {
+	/* Front End DAI links */
+	{
+		.name = "Skl Audio Port",
+		.stream_name = "Audio",
+		.cpu_dai_name = "System Pin",
+		.platform_name = "0000:00:1f.3",
+		.dynamic = 1,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.nonatomic = 1,
+		.init = skylake_nau8825_fe_init,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+		.ops = &skylake_nau8825_fe_ops,
+	},
+	{
+		.name = "Skl Audio Capture Port",
+		.stream_name = "Audio Record",
+		.cpu_dai_name = "System Pin",
+		.platform_name = "0000:00:1f.3",
+		.dynamic = 1,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.nonatomic = 1,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_capture = 1,
+		.ops = &skylake_nau8825_fe_ops,
+	},
+	{
+		.name = "Skl Audio Reference cap",
+		.stream_name = "Wake on Voice",
+		.cpu_dai_name = "Reference Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.ignore_suspend = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &skylaye_refcap_ops,
+	},
+	{
+		.name = "Skl Audio DMIC cap",
+		.stream_name = "dmiccap",
+		.cpu_dai_name = "DMIC Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &skylake_dmic_ops,
+	},
+	{
+		.name = "Skl HDMI Port",
+		.stream_name = "Hdmi",
+		.cpu_dai_name = "HDMI Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.dpcm_playback = 1,
+		.init = NULL,
+		.nonatomic = 1,
+		.dynamic = 1,
+	},
+
+	/* Back End DAI links */
+	{
+		/* SSP0 - Codec */
+		.name = "SSP0-Codec",
+		.be_id = 0,
+		.cpu_dai_name = "SSP0 Pin",
+		.platform_name = "0000:00:1f.3",
+		.no_pcm = 1,
+		.codec_name = "MX98357A:00",
+		.codec_dai_name = SKL_MAXIM_CODEC_DAI,
+		.dai_fmt = SND_SOC_DAIFMT_I2S |
+			SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		.ignore_pmdown_time = 1,
+		.be_hw_params_fixup = skylake_ssp_fixup,
+		.dpcm_playback = 1,
+	},
+	{
+		/* SSP1 - Codec */
+		.name = "SSP1-Codec",
+		.be_id = 0,
+		.cpu_dai_name = "SSP1 Pin",
+		.platform_name = "0000:00:1f.3",
+		.no_pcm = 1,
+		.codec_name = "i2c-10508825:00",
+		.codec_dai_name = SKL_NUVOTON_CODEC_DAI,
+		.init = skylake_nau8825_codec_init,
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		.ignore_pmdown_time = 1,
+		.be_hw_params_fixup = skylake_ssp_fixup,
+		.ops = &skylake_nau8825_ops,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+	},
+	{
+		.name = "dmic01",
+		.be_id = 1,
+		.cpu_dai_name = "DMIC01 Pin",
+		.codec_name = "dmic-codec",
+		.codec_dai_name = "dmic-hifi",
+		.platform_name = "0000:00:1f.3",
+		.be_hw_params_fixup = skylake_dmic_fixup,
+		.ignore_suspend = 1,
+		.dpcm_capture = 1,
+		.no_pcm = 1,
+	},
+	{
+		.name = "iDisp",
+		.be_id = 3,
+		.cpu_dai_name = "iDisp Pin",
+		.codec_name = "ehdaudio0D2",
+		.codec_dai_name = "intel-hdmi-hifi1",
+		.platform_name = "0000:00:1f.3",
+		.dpcm_playback = 1,
+		.no_pcm = 1,
+	},
+};
+
+/* skylake audio machine driver for SPT + NAU88L25 */
+static struct snd_soc_card skylake_audio_card = {
+	.name = "sklnau8825max",
+	.owner = THIS_MODULE,
+	.dai_link = skylake_dais,
+	.num_links = ARRAY_SIZE(skylake_dais),
+	.controls = skylake_controls,
+	.num_controls = ARRAY_SIZE(skylake_controls),
+	.dapm_widgets = skylake_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
+	.dapm_routes = skylake_map,
+	.num_dapm_routes = ARRAY_SIZE(skylake_map),
+	.fully_routed = true,
+};
+
+static int skylake_audio_probe(struct platform_device *pdev)
+{
+	skylake_audio_card.dev = &pdev->dev;
+
+	return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
+}
+
+static struct platform_driver skylake_audio = {
+	.probe = skylake_audio_probe,
+	.driver = {
+		.name = "skl_nau88l25_max98357a_i2s",
+		.pm = &snd_soc_pm_ops,
+	},
+};
+
+module_platform_driver(skylake_audio)
+
+/* Module information */
+MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode");
+MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:skl_nau88l25_max98357a_i2s");

sound/soc/intel/boards/skl_nau88l25_ssm4567.c

+/*
+ * Intel Skylake I2S Machine Driver for NAU88L25+SSM4567
+ *
+ * Copyright (C) 2015, Intel Corporation. All rights reserved.
+ *
+ * Modified from:
+ *   Intel Skylake I2S Machine Driver for NAU88L25 and SSM4567
+ *
+ *   Copyright (C) 2015, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/jack.h>
+#include <sound/pcm_params.h>
+#include "../../codecs/nau8825.h"
+
+#define SKL_NUVOTON_CODEC_DAI	"nau8825-hifi"
+#define SKL_SSM_CODEC_DAI	"ssm4567-hifi"
+
+static struct snd_soc_jack skylake_headset;
+static struct snd_soc_card skylake_audio_card;
+
+static inline struct snd_soc_dai *skl_get_codec_dai(struct snd_soc_card *card)
+{
+	struct snd_soc_pcm_runtime *rtd;
+
+	list_for_each_entry(rtd, &card->rtd_list, list) {
+
+		if (!strncmp(rtd->codec_dai->name, SKL_NUVOTON_CODEC_DAI,
+			     strlen(SKL_NUVOTON_CODEC_DAI)))
+			return rtd->codec_dai;
+	}
+
+	return NULL;
+}
+
+static const struct snd_kcontrol_new skylake_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Left Speaker"),
+	SOC_DAPM_PIN_SWITCH("Right Speaker"),
+};
+
+static int platform_clock_control(struct snd_soc_dapm_widget *w,
+		struct snd_kcontrol *k, int  event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct snd_soc_card *card = dapm->card;
+	struct snd_soc_dai *codec_dai;
+	int ret;
+
+	codec_dai = skl_get_codec_dai(card);
+	if (!codec_dai) {
+		dev_err(card->dev, "Codec dai not found\n");
+		return -EIO;
+	}
+
+	if (SND_SOC_DAPM_EVENT_ON(event)) {
+		ret = snd_soc_dai_set_sysclk(codec_dai,
+				NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
+		if (ret < 0) {
+			dev_err(card->dev, "set sysclk err = %d\n", ret);
+			return -EIO;
+		}
+	} else {
+		ret = snd_soc_dai_set_sysclk(codec_dai,
+				NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
+		if (ret < 0) {
+			dev_err(card->dev, "set sysclk err = %d\n", ret);
+			return -EIO;
+		}
+	}
+	return ret;
+}
+
+static const struct snd_soc_dapm_widget skylake_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_SPK("Left Speaker", NULL),
+	SND_SOC_DAPM_SPK("Right Speaker", NULL),
+	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+	SND_SOC_DAPM_SINK("WoV Sink"),
+	SND_SOC_DAPM_SPK("DP", NULL),
+	SND_SOC_DAPM_SPK("HDMI", NULL),
+	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
+			platform_clock_control, SND_SOC_DAPM_PRE_PMU |
+			SND_SOC_DAPM_POST_PMD),
+};
+
+static const struct snd_soc_dapm_route skylake_map[] = {
+	/* HP jack connectors - unknown if we have jack detection */
+	{"Headphone Jack", NULL, "HPOL"},
+	{"Headphone Jack", NULL, "HPOR"},
+
+	/* speaker */
+	{"Left Speaker", NULL, "Left OUT"},
+	{"Right Speaker", NULL, "Right OUT"},
+
+	/* other jacks */
+	{"MIC", NULL, "Headset Mic"},
+	{"DMic", NULL, "SoC DMIC"},
+
+	{"WoV Sink", NULL, "hwd_in sink"},
+
+	{"HDMI", NULL, "hif5 Output"},
+	{"DP", NULL, "hif6 Output"},
+	/* CODEC BE connections */
+	{ "Left Playback", NULL, "ssp0 Tx"},
+	{ "Right Playback", NULL, "ssp0 Tx"},
+	{ "ssp0 Tx", NULL, "codec0_out"},
+
+	{ "Playback", NULL, "ssp1 Tx"},
+	{ "ssp1 Tx", NULL, "codec1_out"},
+
+	{ "codec0_in", NULL, "ssp1 Rx" },
+	{ "ssp1 Rx", NULL, "Capture" },
+
+	/* DMIC */
+	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
+	{ "DMIC01 Rx", NULL, "DMIC AIF" },
+	{ "hifi1", NULL, "iDisp Tx"},
+	{ "iDisp Tx", NULL, "iDisp_out"},
+	{ "Headphone Jack", NULL, "Platform Clock" },
+	{ "Headset Mic", NULL, "Platform Clock" },
+};
+
+static struct snd_soc_codec_conf ssm4567_codec_conf[] = {
+	{
+		.dev_name = "i2c-INT343B:00",
+		.name_prefix = "Left",
+	},
+	{
+		.dev_name = "i2c-INT343B:01",
+		.name_prefix = "Right",
+	},
+};
+
+static struct snd_soc_dai_link_component ssm4567_codec_components[] = {
+	{ /* Left */
+		.name = "i2c-INT343B:00",
+		.dai_name = SKL_SSM_CODEC_DAI,
+	},
+	{ /* Right */
+		.name = "i2c-INT343B:01",
+		.dai_name = SKL_SSM_CODEC_DAI,
+	},
+};
+
+static int skylake_ssm4567_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret;
+
+	/* Slot 1 for left */
+	ret = snd_soc_dai_set_tdm_slot(rtd->codec_dais[0], 0x01, 0x01, 2, 48);
+	if (ret < 0)
+		return ret;
+
+	/* Slot 2 for right */
+	ret = snd_soc_dai_set_tdm_slot(rtd->codec_dais[1], 0x02, 0x02, 2, 48);
+	if (ret < 0)
+		return ret;
+
+	return ret;
+}
+
+static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
+{
+	int ret;
+	struct snd_soc_codec *codec = rtd->codec;
+
+	/*
+	 * 4 buttons here map to the google Reference headset
+	 * The use of these buttons can be decided by the user space.
+	 */
+	ret = snd_soc_card_jack_new(&skylake_audio_card, "Headset Jack",
+		SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
+		SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset,
+		NULL, 0);
+	if (ret) {
+		dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
+		return ret;
+	}
+
+	nau8825_enable_jack_detect(codec, &skylake_headset);
+
+	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
+	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "WoV Sink");
+
+	return ret;
+}
+
+static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dapm_context *dapm;
+	struct snd_soc_component *component = rtd->cpu_dai->component;
+
+	dapm = snd_soc_component_get_dapm(component);
+	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
+
+	return 0;
+}
+
+static unsigned int rates[] = {
+	48000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_rates = {
+	.count = ARRAY_SIZE(rates),
+	.list  = rates,
+	.mask = 0,
+};
+
+static unsigned int channels[] = {
+	2,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_channels = {
+	.count = ARRAY_SIZE(channels),
+	.list = channels,
+	.mask = 0,
+};
+
+static int skl_fe_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	/*
+	 * on this platform for PCM device we support,
+	 *	48Khz
+	 *	stereo
+	 *	16 bit audio
+	 */
+
+	runtime->hw.channels_max = 2;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+					   &constraints_channels);
+
+	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
+
+	snd_pcm_hw_constraint_list(runtime, 0,
+				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+
+	return 0;
+}
+
+static const struct snd_soc_ops skylake_nau8825_fe_ops = {
+	.startup = skl_fe_startup,
+};
+
+static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
+			struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *rate = hw_param_interval(params,
+			SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
+
+	/* The ADSP will covert the FE rate to 48k, stereo */
+	rate->min = rate->max = 48000;
+	channels->min = channels->max = 2;
+
+	/* set SSP0 to 24 bit */
+	snd_mask_none(fmt);
+	snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
+	return 0;
+}
+
+static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
+			struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+	if (params_channels(params) == 2)
+		channels->min = channels->max = 2;
+	else
+		channels->min = channels->max = 4;
+
+	return 0;
+}
+
+static int skylake_nau8825_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	int ret;
+
+	ret = snd_soc_dai_set_sysclk(codec_dai,
+			NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
+
+	if (ret < 0)
+		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
+
+	return ret;
+}
+
+static struct snd_soc_ops skylake_nau8825_ops = {
+	.hw_params = skylake_nau8825_hw_params,
+};
+
+static unsigned int channels_dmic[] = {
+	2, 4,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
+	.count = ARRAY_SIZE(channels_dmic),
+	.list = channels_dmic,
+	.mask = 0,
+};
+
+static int skylake_dmic_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	runtime->hw.channels_max = 4;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+			&constraints_dmic_channels);
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+}
+
+static struct snd_soc_ops skylake_dmic_ops = {
+	.startup = skylake_dmic_startup,
+};
+
+static unsigned int rates_16000[] = {
+	16000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_16000 = {
+	.count = ARRAY_SIZE(rates_16000),
+	.list  = rates_16000,
+};
+
+static int skylake_refcap_startup(struct snd_pcm_substream *substream)
+{
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE,
+			&constraints_16000);
+}
+
+static struct snd_soc_ops skylaye_refcap_ops = {
+	.startup = skylake_refcap_startup,
+};
+
+/* skylake digital audio interface glue - connects codec <--> CPU */
+static struct snd_soc_dai_link skylake_dais[] = {
+	/* Front End DAI links */
+	{
+		.name = "Skl Audio Port",
+		.stream_name = "Audio",
+		.cpu_dai_name = "System Pin",
+		.platform_name = "0000:00:1f.3",
+		.dynamic = 1,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.nonatomic = 1,
+		.init = skylake_nau8825_fe_init,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+		.ops = &skylake_nau8825_fe_ops,
+	},
+	{
+		.name = "Skl Audio Capture Port",
+		.stream_name = "Audio Record",
+		.cpu_dai_name = "System Pin",
+		.platform_name = "0000:00:1f.3",
+		.dynamic = 1,
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.nonatomic = 1,
+		.trigger = {
+			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_capture = 1,
+		.ops = &skylake_nau8825_fe_ops,
+	},
+	{
+		.name = "Skl Audio Reference cap",
+		.stream_name = "Wake on Voice",
+		.cpu_dai_name = "Reference Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.ignore_suspend = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &skylaye_refcap_ops,
+	},
+	{
+		.name = "Skl Audio DMIC cap",
+		.stream_name = "dmiccap",
+		.cpu_dai_name = "DMIC Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &skylake_dmic_ops,
+	},
+	{
+		.name = "Skl HDMI Port",
+		.stream_name = "Hdmi",
+		.cpu_dai_name = "HDMI Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.dpcm_playback = 1,
+		.init = NULL,
+		.nonatomic = 1,
+		.dynamic = 1,
+	},
+
+	/* Back End DAI links */
+	{
+		/* SSP0 - Codec */
+		.name = "SSP0-Codec",
+		.be_id = 0,
+		.cpu_dai_name = "SSP0 Pin",
+		.platform_name = "0000:00:1f.3",
+		.no_pcm = 1,
+		.codecs = ssm4567_codec_components,
+		.num_codecs = ARRAY_SIZE(ssm4567_codec_components),
+		.dai_fmt = SND_SOC_DAIFMT_DSP_A |
+			SND_SOC_DAIFMT_IB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		.init = skylake_ssm4567_codec_init,
+		.ignore_pmdown_time = 1,
+		.be_hw_params_fixup = skylake_ssp_fixup,
+		.dpcm_playback = 1,
+	},
+	{
+		/* SSP1 - Codec */
+		.name = "SSP1-Codec",
+		.be_id = 0,
+		.cpu_dai_name = "SSP1 Pin",
+		.platform_name = "0000:00:1f.3",
+		.no_pcm = 1,
+		.codec_name = "i2c-10508825:00",
+		.codec_dai_name = SKL_NUVOTON_CODEC_DAI,
+		.init = skylake_nau8825_codec_init,
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+			SND_SOC_DAIFMT_CBS_CFS,
+		.ignore_pmdown_time = 1,
+		.be_hw_params_fixup = skylake_ssp_fixup,
+		.ops = &skylake_nau8825_ops,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+	},
+	{
+		.name = "dmic01",
+		.be_id = 1,
+		.cpu_dai_name = "DMIC01 Pin",
+		.codec_name = "dmic-codec",
+		.codec_dai_name = "dmic-hifi",
+		.platform_name = "0000:00:1f.3",
+		.ignore_suspend = 1,
+		.be_hw_params_fixup = skylake_dmic_fixup,
+		.dpcm_capture = 1,
+		.no_pcm = 1,
+	},
+	{
+		.name = "iDisp",
+		.be_id = 3,
+		.cpu_dai_name = "iDisp Pin",
+		.codec_name = "ehdaudio0D2",
+		.codec_dai_name = "intel-hdmi-hifi1",
+		.platform_name = "0000:00:1f.3",
+		.dpcm_playback = 1,
+		.no_pcm = 1,
+	},
+};
+
+/* skylake audio machine driver for SPT + NAU88L25 */
+static struct snd_soc_card skylake_audio_card = {
+	.name = "sklnau8825adi",
+	.owner = THIS_MODULE,
+	.dai_link = skylake_dais,
+	.num_links = ARRAY_SIZE(skylake_dais),
+	.controls = skylake_controls,
+	.num_controls = ARRAY_SIZE(skylake_controls),
+	.dapm_widgets = skylake_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
+	.dapm_routes = skylake_map,
+	.num_dapm_routes = ARRAY_SIZE(skylake_map),
+	.codec_conf = ssm4567_codec_conf,
+	.num_configs = ARRAY_SIZE(ssm4567_codec_conf),
+	.fully_routed = true,
+};
+
+static int skylake_audio_probe(struct platform_device *pdev)
+{
+	skylake_audio_card.dev = &pdev->dev;
+
+	return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
+}
+
+static struct platform_driver skylake_audio = {
+	.probe = skylake_audio_probe,
+	.driver = {
+		.name = "skl_nau88l25_ssm4567_i2s",
+		.pm = &snd_soc_pm_ops,
+	},
+};
+
+module_platform_driver(skylake_audio)
+
+/* Module information */
+MODULE_AUTHOR("Conrad Cooke  <conrad.cooke@intel.com>");
+MODULE_AUTHOR("Harsha Priya <harshapriya.n@intel.com>");
+MODULE_AUTHOR("Naveen M <naveen.m@intel.com>");
+MODULE_AUTHOR("Sathya Prakash M R <sathya.prakash.m.r@intel.com>");
+MODULE_AUTHOR("Yong Zhi <yong.zhi@intel.com>");
+MODULE_DESCRIPTION("Intel Audio Machine driver for SKL with NAU88L25 and SSM4567 in I2S Mode");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:skl_nau88l25_ssm4567_i2s");

sound/soc/intel/boards/skl_rt286.c

@@ -52,6 +52,7 @@ static const struct snd_soc_dapm_widget skylake_widgets[] = {
 	SND_SOC_DAPM_MIC("Mic Jack", NULL),
 	SND_SOC_DAPM_MIC("DMIC2", NULL),
 	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
+	SND_SOC_DAPM_SINK("WoV Sink"),
 };
 
 static const struct snd_soc_dapm_route skylake_rt286_map[] = {
@@ -67,7 +68,9 @@ static const struct snd_soc_dapm_route skylake_rt286_map[] = {
 
 	/* digital mics */
 	{"DMIC1 Pin", NULL, "DMIC2"},
-	{"DMIC AIF", NULL, "SoC DMIC"},
+	{"DMic", NULL, "SoC DMIC"},
+
+	{"WoV Sink", NULL, "hwd_in sink"},
 
 	/* CODEC BE connections */
 	{ "AIF1 Playback", NULL, "ssp0 Tx"},
@@ -79,13 +82,24 @@ static const struct snd_soc_dapm_route skylake_rt286_map[] = {
 	{ "ssp0 Rx", NULL, "AIF1 Capture" },
 
 	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
-	{ "DMIC01 Rx", NULL, "Capture" },
+	{ "DMIC01 Rx", NULL, "DMIC AIF" },
 
 	{ "hif1", NULL, "iDisp Tx"},
 	{ "iDisp Tx", NULL, "iDisp_out"},
 
 };
 
+static int skylake_rt286_fe_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dapm_context *dapm;
+	struct snd_soc_component *component = rtd->cpu_dai->component;
+
+	dapm = snd_soc_component_get_dapm(component);
+	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
+
+	return 0;
+}
+
 static int skylake_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_codec *codec = rtd->codec;
@@ -101,9 +115,59 @@ static int skylake_rt286_codec_init(struct snd_soc_pcm_runtime *rtd)
 
 	rt286_mic_detect(codec, &skylake_headset);
 
+	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
+	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "WoV Sink");
+
+	return 0;
+}
+
+static unsigned int rates[] = {
+	48000,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_rates = {
+	.count = ARRAY_SIZE(rates),
+	.list  = rates,
+	.mask = 0,
+};
+
+static unsigned int channels[] = {
+	2,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_channels = {
+	.count = ARRAY_SIZE(channels),
+	.list = channels,
+	.mask = 0,
+};
+
+static int skl_fe_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	/*
+	 * on this platform for PCM device we support,
+	 *	48Khz
+	 *	stereo
+	 *	16 bit audio
+	 */
+
+	runtime->hw.channels_max = 2;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+					   &constraints_channels);
+
+	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
+	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
+
+	snd_pcm_hw_constraint_list(runtime, 0,
+				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+
 	return 0;
 }
 
+static const struct snd_soc_ops skylake_rt286_fe_ops = {
+	.startup = skl_fe_startup,
+};
 
 static int skylake_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 			struct snd_pcm_hw_params *params)
@@ -112,12 +176,15 @@ static int skylake_ssp0_fixup(struct snd_soc_pcm_runtime *rtd,
 			SNDRV_PCM_HW_PARAM_RATE);
 	struct snd_interval *channels = hw_param_interval(params,
 						SNDRV_PCM_HW_PARAM_CHANNELS);
+	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
 
 	/* The output is 48KHz, stereo, 16bits */
 	rate->min = rate->max = 48000;
 	channels->min = channels->max = 2;
-	params_set_format(params, SNDRV_PCM_FORMAT_S16_LE);
 
+	/* set SSP0 to 24 bit */
+	snd_mask_none(fmt);
+	snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE);
 	return 0;
 }
 
@@ -140,6 +207,42 @@ static struct snd_soc_ops skylake_rt286_ops = {
 	.hw_params = skylake_rt286_hw_params,
 };
 
+static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
+				struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+	channels->min = channels->max = 4;
+
+	return 0;
+}
+
+static unsigned int channels_dmic[] = {
+	2, 4,
+};
+
+static struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
+	.count = ARRAY_SIZE(channels_dmic),
+	.list = channels_dmic,
+	.mask = 0,
+};
+
+static int skylake_dmic_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+
+	runtime->hw.channels_max = 4;
+	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+					   &constraints_dmic_channels);
+
+	return snd_pcm_hw_constraint_list(substream->runtime, 0,
+			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
+}
+
+static struct snd_soc_ops skylake_dmic_ops = {
+	.startup = skylake_dmic_startup,
+};
+
 /* skylake digital audio interface glue - connects codec <--> CPU */
 static struct snd_soc_dai_link skylake_rt286_dais[] = {
 	/* Front End DAI links */
@@ -152,11 +255,13 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
 		.dynamic = 1,
 		.codec_name = "snd-soc-dummy",
 		.codec_dai_name = "snd-soc-dummy-dai",
+		.init = skylake_rt286_fe_init,
 		.trigger = {
 			SND_SOC_DPCM_TRIGGER_POST,
 			SND_SOC_DPCM_TRIGGER_POST
 		},
 		.dpcm_playback = 1,
+		.ops = &skylake_rt286_fe_ops,
 	},
 	{
 		.name = "Skl Audio Capture Port",
@@ -172,6 +277,7 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
 			SND_SOC_DPCM_TRIGGER_POST
 		},
 		.dpcm_capture = 1,
+		.ops = &skylake_rt286_fe_ops,
 	},
 	{
 		.name = "Skl Audio Reference cap",
@@ -186,6 +292,19 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
 		.nonatomic = 1,
 		.dynamic = 1,
 	},
+	{
+		.name = "Skl Audio DMIC cap",
+		.stream_name = "dmiccap",
+		.cpu_dai_name = "DMIC Pin",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.platform_name = "0000:00:1f.3",
+		.init = NULL,
+		.dpcm_capture = 1,
+		.nonatomic = 1,
+		.dynamic = 1,
+		.ops = &skylake_dmic_ops,
+	},
 
 	/* Back End DAI links */
 	{
@@ -201,7 +320,6 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
 		.dai_fmt = SND_SOC_DAIFMT_I2S |
 			SND_SOC_DAIFMT_NB_NF |
 			SND_SOC_DAIFMT_CBS_CFS,
-		.ignore_suspend = 1,
 		.ignore_pmdown_time = 1,
 		.be_hw_params_fixup = skylake_ssp0_fixup,
 		.ops = &skylake_rt286_ops,
@@ -215,6 +333,7 @@ static struct snd_soc_dai_link skylake_rt286_dais[] = {
 		.codec_name = "dmic-codec",
 		.codec_dai_name = "dmic-hifi",
 		.platform_name = "0000:00:1f.3",
+		.be_hw_params_fixup = skylake_dmic_fixup,
 		.ignore_suspend = 1,
 		.dpcm_capture = 1,
 		.no_pcm = 1,
@@ -247,6 +366,7 @@ static struct platform_driver skylake_audio = {
 	.probe = skylake_audio_probe,
 	.driver = {
 		.name = "skl_alc286s_i2s",
+		.pm = &snd_soc_pm_ops,
 	},
 };
 

sound/soc/intel/common/Makefile

 snd-soc-sst-dsp-objs := sst-dsp.o
-snd-soc-sst-acpi-objs := sst-acpi.o
+snd-soc-sst-acpi-objs := sst-acpi.o sst-match-acpi.o
 snd-soc-sst-ipc-objs := sst-ipc.o
 
-ifneq ($(CONFIG_DW_DMAC_CORE),)
-snd-soc-sst-dsp-objs += sst-firmware.o
-endif
+snd-soc-sst-dsp-$(CONFIG_DW_DMAC_CORE) += sst-firmware.o
 
 obj-$(CONFIG_SND_SOC_INTEL_SST) += snd-soc-sst-dsp.o snd-soc-sst-ipc.o
 obj-$(CONFIG_SND_SOC_INTEL_SST_ACPI) += snd-soc-sst-acpi.o
-

sound/soc/intel/common/sst-acpi.c

@@ -21,21 +21,12 @@
 #include <linux/platform_device.h>
 
 #include "sst-dsp.h"
+#include "sst-acpi.h"
 
 #define SST_LPT_DSP_DMA_ADDR_OFFSET	0x0F0000
 #define SST_WPT_DSP_DMA_ADDR_OFFSET	0x0FE000
 #define SST_LPT_DSP_DMA_SIZE		(1024 - 1)
 
-/* Descriptor for SST ASoC machine driver */
-struct sst_acpi_mach {
-	/* ACPI ID for the matching machine driver. Audio codec for instance */
-	const u8 id[ACPI_ID_LEN];
-	/* machine driver name */
-	const char *drv_name;
-	/* firmware file name */
-	const char *fw_filename;
-};
-
 /* Descriptor for setting up SST platform data */
 struct sst_acpi_desc {
 	const char *drv_name;
@@ -88,28 +79,6 @@ static void sst_acpi_fw_cb(const struct firmware *fw, void *context)
 	return;
 }
 
-static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level,
-				       void *context, void **ret)
-{
-	*(bool *)context = true;
-	return AE_OK;
-}
-
-static struct sst_acpi_mach *sst_acpi_find_machine(
-	struct sst_acpi_mach *machines)
-{
-	struct sst_acpi_mach *mach;
-	bool found = false;
-
-	for (mach = machines; mach->id[0]; mach++)
-		if (ACPI_SUCCESS(acpi_get_devices(mach->id,
-						  sst_acpi_mach_match,
-						  &found, NULL)) && found)
-			return mach;
-
-	return NULL;
-}
-
 static int sst_acpi_probe(struct platform_device *pdev)
 {
 	const struct acpi_device_id *id;
@@ -211,7 +180,7 @@ static int sst_acpi_remove(struct platform_device *pdev)
 }
 
 static struct sst_acpi_mach haswell_machines[] = {
-	{ "INT33CA", "haswell-audio", "intel/IntcSST1.bin" },
+	{ "INT33CA", "haswell-audio", "intel/IntcSST1.bin", NULL, NULL, NULL },
 	{}
 };
 
@@ -229,7 +198,7 @@ static struct sst_acpi_desc sst_acpi_haswell_desc = {
 };
 
 static struct sst_acpi_mach broadwell_machines[] = {
-	{ "INT343A", "broadwell-audio", "intel/IntcSST2.bin" },
+	{ "INT343A", "broadwell-audio", "intel/IntcSST2.bin", NULL, NULL, NULL },
 	{}
 };
 
@@ -247,8 +216,8 @@ static struct sst_acpi_desc sst_acpi_broadwell_desc = {
 };
 
 static struct sst_acpi_mach baytrail_machines[] = {
-	{ "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-48kHz_i2s_master" },
-	{ "193C9890", "byt-max98090", "intel/fw_sst_0f28.bin-48kHz_i2s_master" },
+	{ "10EC5640", "byt-rt5640", "intel/fw_sst_0f28.bin-48kHz_i2s_master", NULL, NULL, NULL },
+	{ "193C9890", "byt-max98090", "intel/fw_sst_0f28.bin-48kHz_i2s_master", NULL, NULL, NULL },
 	{}
 };
 

sound/soc/intel/common/sst-acpi.h

+/*
+ * Copyright (C) 2013-15, Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/acpi.h>
+
+/* acpi match */
+struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines);
+
+/* Descriptor for SST ASoC machine driver */
+struct sst_acpi_mach {
+	/* ACPI ID for the matching machine driver. Audio codec for instance */
+	const u8 id[ACPI_ID_LEN];
+	/* machine driver name */
+	const char *drv_name;
+	/* firmware file name */
+	const char *fw_filename;
+
+	/* board name */
+	const char *board;
+	void (*machine_quirk)(void);
+	void *pdata;
+};

sound/soc/intel/common/sst-dsp-priv.h

@@ -243,7 +243,7 @@ struct sst_mem_block {
 	u32 size;			/* block size */
 	u32 index;			/* block index 0..N */
 	enum sst_mem_type type;		/* block memory type IRAM/DRAM */
-	struct sst_block_ops *ops;	/* block operations, if any */
+	const struct sst_block_ops *ops;/* block operations, if any */
 
 	/* block status */
 	u32 bytes_used;			/* bytes in use by modules */
@@ -308,6 +308,8 @@ struct sst_dsp {
 
 	/* SKL data */
 
+	const char *fw_name;
+
 	/* To allocate CL dma buffers */
 	struct skl_dsp_loader_ops dsp_ops;
 	struct skl_dsp_fw_ops fw_ops;
@@ -376,8 +378,8 @@ void sst_block_free_scratch(struct sst_dsp *dsp);
 
 /* Register the DSPs memory blocks - would be nice to read from ACPI */
 struct sst_mem_block *sst_mem_block_register(struct sst_dsp *dsp, u32 offset,
-	u32 size, enum sst_mem_type type, struct sst_block_ops *ops, u32 index,
-	void *private);
+	u32 size, enum sst_mem_type type, const struct sst_block_ops *ops,
+	u32 index, void *private);
 void sst_mem_block_unregister_all(struct sst_dsp *dsp);
 
 /* Create/Free DMA resources */

sound/soc/intel/common/sst-dsp.c

@@ -420,7 +420,7 @@ void sst_dsp_inbox_read(struct sst_dsp *sst, void *message, size_t bytes)
 }
 EXPORT_SYMBOL_GPL(sst_dsp_inbox_read);
 
-#if IS_ENABLED(CONFIG_DW_DMAC_CORE)
+#ifdef CONFIG_DW_DMAC_CORE
 struct sst_dsp *sst_dsp_new(struct device *dev,
 	struct sst_dsp_device *sst_dev, struct sst_pdata *pdata)
 {

sound/soc/intel/common/sst-dsp.h

@@ -216,7 +216,7 @@ struct sst_pdata {
 	void *dsp;
 };
 
-#if IS_ENABLED(CONFIG_DW_DMAC_CORE)
+#ifdef CONFIG_DW_DMAC_CORE
 /* Initialization */
 struct sst_dsp *sst_dsp_new(struct device *dev,
 	struct sst_dsp_device *sst_dev, struct sst_pdata *pdata);

sound/soc/intel/common/sst-firmware.c

@@ -51,8 +51,22 @@ struct sst_dma {
 
 static inline void sst_memcpy32(volatile void __iomem *dest, void *src, u32 bytes)
 {
+	u32 tmp = 0;
+	int i, m, n;
+	const u8 *src_byte = src;
+
+	m = bytes / 4;
+	n = bytes % 4;
+
 	/* __iowrite32_copy use 32bit size values so divide by 4 */
-	__iowrite32_copy((void *)dest, src, bytes/4);
+	__iowrite32_copy((void *)dest, src, m);
+
+	if (n) {
+		for (i = 0; i < n; i++)
+			tmp |= (u32)*(src_byte + m * 4 + i) << (i * 8);
+		__iowrite32_copy((void *)(dest + m * 4), &tmp, 1);
+	}
+
 }
 
 static void sst_dma_transfer_complete(void *arg)
@@ -1014,8 +1028,8 @@ EXPORT_SYMBOL_GPL(sst_module_runtime_restore);
 
 /* register a DSP memory block for use with FW based modules */
 struct sst_mem_block *sst_mem_block_register(struct sst_dsp *dsp, u32 offset,
-	u32 size, enum sst_mem_type type, struct sst_block_ops *ops, u32 index,
-	void *private)
+	u32 size, enum sst_mem_type type, const struct sst_block_ops *ops,
+	u32 index, void *private)
 {
 	struct sst_mem_block *block;
 

sound/soc/intel/common/sst-match-acpi.c

+/*
+ * sst_match_apci.c - SST (LPE) match for ACPI enumeration.
+ *
+ * Copyright (c) 2013-15, Intel Corporation.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ */
+#include <linux/acpi.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include "sst-acpi.h"
+
+static acpi_status sst_acpi_mach_match(acpi_handle handle, u32 level,
+				       void *context, void **ret)
+{
+	*(bool *)context = true;
+	return AE_OK;
+}
+
+struct sst_acpi_mach *sst_acpi_find_machine(struct sst_acpi_mach *machines)
+{
+	struct sst_acpi_mach *mach;
+	bool found = false;
+
+	for (mach = machines; mach->id[0]; mach++)
+		if (ACPI_SUCCESS(acpi_get_devices(mach->id,
+						  sst_acpi_mach_match,
+						  &found, NULL)) && found)
+			return mach;
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(sst_acpi_find_machine);

sound/soc/intel/haswell/sst-haswell-dsp.c

@@ -607,7 +607,7 @@ static int hsw_block_disable(struct sst_mem_block *block)
 	return 0;
 }
 
-static struct sst_block_ops sst_hsw_ops = {
+static const struct sst_block_ops sst_hsw_ops = {
 	.enable = hsw_block_enable,
 	.disable = hsw_block_disable,
 };

sound/soc/intel/haswell/sst-haswell-ipc.c

@@ -778,7 +778,6 @@ static irqreturn_t hsw_irq_thread(int irq, void *context)
 	struct sst_hsw *hsw = sst_dsp_get_thread_context(sst);
 	struct sst_generic_ipc *ipc = &hsw->ipc;
 	u32 ipcx, ipcd;
-	int handled;
 	unsigned long flags;
 
 	spin_lock_irqsave(&sst->spinlock, flags);
@@ -790,9 +789,8 @@ static irqreturn_t hsw_irq_thread(int irq, void *context)
 	if (ipcx & SST_IPCX_DONE) {
 
 		/* Handle Immediate reply from DSP Core */
-		handled = hsw_process_reply(hsw, ipcx);
+		hsw_process_reply(hsw, ipcx);
 
-		if (handled > 0) {
 		/* clear DONE bit - tell DSP we have completed */
 		sst_dsp_shim_update_bits_unlocked(sst, SST_IPCX,
 			SST_IPCX_DONE, 0);
@@ -801,16 +799,14 @@ static irqreturn_t hsw_irq_thread(int irq, void *context)
 		sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
 			SST_IMRX_DONE, 0);
 	}
-	}
 
 	/* new message from DSP */
 	if (ipcd & SST_IPCD_BUSY) {
 
 		/* Handle Notification and Delayed reply from DSP Core */
-		handled = hsw_process_notification(hsw);
+		hsw_process_notification(hsw);
 
 		/* clear BUSY bit and set DONE bit - accept new messages */
-		if (handled > 0) {
 		sst_dsp_shim_update_bits_unlocked(sst, SST_IPCD,
 			SST_IPCD_BUSY | SST_IPCD_DONE, SST_IPCD_DONE);
 
@@ -818,7 +814,6 @@ static irqreturn_t hsw_irq_thread(int irq, void *context)
 		sst_dsp_shim_update_bits_unlocked(sst, SST_IMRX,
 			SST_IMRX_BUSY, 0);
 	}
-	}
 
 	spin_unlock_irqrestore(&sst->spinlock, flags);
 

sound/soc/intel/skylake/skl-messages.c

@@ -96,7 +96,7 @@ int skl_init_dsp(struct skl *skl)
 	}
 
 	ret = skl_sst_dsp_init(bus->dev, mmio_base, irq,
-			loader_ops, &skl->skl_sst);
+			skl->fw_name, loader_ops, &skl->skl_sst);
 	if (ret < 0)
 		return ret;
 
@@ -182,94 +182,6 @@ enum skl_bitdepth skl_get_bit_depth(int params)
 	}
 }
 
-static u32 skl_create_channel_map(enum skl_ch_cfg ch_cfg)
-{
-	u32 config;
-
-	switch (ch_cfg) {
-	case SKL_CH_CFG_MONO:
-		config =  (0xFFFFFFF0 | SKL_CHANNEL_LEFT);
-		break;
-
-	case SKL_CH_CFG_STEREO:
-		config = (0xFFFFFF00 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_RIGHT << 4));
-		break;
-
-	case SKL_CH_CFG_2_1:
-		config = (0xFFFFF000 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_RIGHT << 4)
-			| (SKL_CHANNEL_LFE << 8));
-		break;
-
-	case SKL_CH_CFG_3_0:
-		config =  (0xFFFFF000 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_CENTER << 4)
-			| (SKL_CHANNEL_RIGHT << 8));
-		break;
-
-	case SKL_CH_CFG_3_1:
-		config = (0xFFFF0000 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_CENTER << 4)
-			| (SKL_CHANNEL_RIGHT << 8)
-			| (SKL_CHANNEL_LFE << 12));
-		break;
-
-	case SKL_CH_CFG_QUATRO:
-		config = (0xFFFF0000 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_RIGHT << 4)
-			| (SKL_CHANNEL_LEFT_SURROUND << 8)
-			| (SKL_CHANNEL_RIGHT_SURROUND << 12));
-		break;
-
-	case SKL_CH_CFG_4_0:
-		config = (0xFFFF0000 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_CENTER << 4)
-			| (SKL_CHANNEL_RIGHT << 8)
-			| (SKL_CHANNEL_CENTER_SURROUND << 12));
-		break;
-
-	case SKL_CH_CFG_5_0:
-		config = (0xFFF00000 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_CENTER << 4)
-			| (SKL_CHANNEL_RIGHT << 8)
-			| (SKL_CHANNEL_LEFT_SURROUND << 12)
-			| (SKL_CHANNEL_RIGHT_SURROUND << 16));
-		break;
-
-	case SKL_CH_CFG_5_1:
-		config = (0xFF000000 | SKL_CHANNEL_CENTER
-			| (SKL_CHANNEL_LEFT << 4)
-			| (SKL_CHANNEL_RIGHT << 8)
-			| (SKL_CHANNEL_LEFT_SURROUND << 12)
-			| (SKL_CHANNEL_RIGHT_SURROUND << 16)
-			| (SKL_CHANNEL_LFE << 20));
-		break;
-
-	case SKL_CH_CFG_DUAL_MONO:
-		config = (0xFFFFFF00 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_LEFT << 4));
-		break;
-
-	case SKL_CH_CFG_I2S_DUAL_STEREO_0:
-		config = (0xFFFFFF00 | SKL_CHANNEL_LEFT
-			| (SKL_CHANNEL_RIGHT << 4));
-		break;
-
-	case SKL_CH_CFG_I2S_DUAL_STEREO_1:
-		config = (0xFFFF00FF | (SKL_CHANNEL_LEFT << 8)
-			| (SKL_CHANNEL_RIGHT << 12));
-		break;
-
-	default:
-		config =  0xFFFFFFFF;
-		break;
-
-	}
-
-	return config;
-}
-
 /*
  * Each module in DSP expects a base module configuration, which consists of
  * PCM format information, which we calculate in driver and resource values
@@ -280,7 +192,7 @@ static void skl_set_base_module_format(struct skl_sst *ctx,
 			struct skl_module_cfg *mconfig,
 			struct skl_base_cfg *base_cfg)
 {
-	struct skl_module_fmt *format = &mconfig->in_fmt;
+	struct skl_module_fmt *format = &mconfig->in_fmt[0];
 
 	base_cfg->audio_fmt.number_of_channels = (u8)format->channels;
 
@@ -293,14 +205,14 @@ static void skl_set_base_module_format(struct skl_sst *ctx,
 			format->bit_depth, format->valid_bit_depth,
 			format->ch_cfg);
 
-	base_cfg->audio_fmt.channel_map = skl_create_channel_map(
-					base_cfg->audio_fmt.ch_cfg);
+	base_cfg->audio_fmt.channel_map = format->ch_map;
 
-	base_cfg->audio_fmt.interleaving = SKL_INTERLEAVING_PER_CHANNEL;
+	base_cfg->audio_fmt.interleaving = format->interleaving_style;
 
 	base_cfg->cps = mconfig->mcps;
 	base_cfg->ibs = mconfig->ibs;
 	base_cfg->obs = mconfig->obs;
+	base_cfg->is_pages = mconfig->mem_pages;
 }
 
 /*
@@ -399,7 +311,7 @@ static void skl_setup_out_format(struct skl_sst *ctx,
 			struct skl_module_cfg *mconfig,
 			struct skl_audio_data_format *out_fmt)
 {
-	struct skl_module_fmt *format = &mconfig->out_fmt;
+	struct skl_module_fmt *format = &mconfig->out_fmt[0];
 
 	out_fmt->number_of_channels = (u8)format->channels;
 	out_fmt->s_freq = format->s_freq;
@@ -407,8 +319,9 @@ static void skl_setup_out_format(struct skl_sst *ctx,
 	out_fmt->valid_bit_depth = format->valid_bit_depth;
 	out_fmt->ch_cfg = format->ch_cfg;
 
-	out_fmt->channel_map = skl_create_channel_map(out_fmt->ch_cfg);
-	out_fmt->interleaving = SKL_INTERLEAVING_PER_CHANNEL;
+	out_fmt->channel_map = format->ch_map;
+	out_fmt->interleaving = format->interleaving_style;
+	out_fmt->sample_type = format->sample_type;
 
 	dev_dbg(ctx->dev, "copier out format chan=%d fre=%d bitdepth=%d\n",
 		out_fmt->number_of_channels, format->s_freq, format->bit_depth);
@@ -423,7 +336,7 @@ static void skl_set_src_format(struct skl_sst *ctx,
 			struct skl_module_cfg *mconfig,
 			struct skl_src_module_cfg *src_mconfig)
 {
-	struct skl_module_fmt *fmt = &mconfig->out_fmt;
+	struct skl_module_fmt *fmt = &mconfig->out_fmt[0];
 
 	skl_set_base_module_format(ctx, mconfig,
 		(struct skl_base_cfg *)src_mconfig);
@@ -440,7 +353,7 @@ static void skl_set_updown_mixer_format(struct skl_sst *ctx,
 			struct skl_module_cfg *mconfig,
 			struct skl_up_down_mixer_cfg *mixer_mconfig)
 {
-	struct skl_module_fmt *fmt = &mconfig->out_fmt;
+	struct skl_module_fmt *fmt = &mconfig->out_fmt[0];
 	int i = 0;
 
 	skl_set_base_module_format(ctx,	mconfig,
@@ -475,6 +388,47 @@ static void skl_set_copier_format(struct skl_sst *ctx,
 	skl_setup_cpr_gateway_cfg(ctx, mconfig, cpr_mconfig);
 }
 
+/*
+ * Algo module are DSP pre processing modules. Algo module take base module
+ * configuration and params
+ */
+
+static void skl_set_algo_format(struct skl_sst *ctx,
+			struct skl_module_cfg *mconfig,
+			struct skl_algo_cfg *algo_mcfg)
+{
+	struct skl_base_cfg *base_cfg = (struct skl_base_cfg *)algo_mcfg;
+
+	skl_set_base_module_format(ctx, mconfig, base_cfg);
+
+	if (mconfig->formats_config.caps_size == 0)
+		return;
+
+	memcpy(algo_mcfg->params,
+			mconfig->formats_config.caps,
+			mconfig->formats_config.caps_size);
+
+}
+
+/*
+ * Mic select module allows selecting one or many input channels, thus
+ * acting as a demux.
+ *
+ * Mic select module take base module configuration and out-format
+ * configuration
+ */
+static void skl_set_base_outfmt_format(struct skl_sst *ctx,
+			struct skl_module_cfg *mconfig,
+			struct skl_base_outfmt_cfg *base_outfmt_mcfg)
+{
+	struct skl_audio_data_format *out_fmt = &base_outfmt_mcfg->out_fmt;
+	struct skl_base_cfg *base_cfg =
+				(struct skl_base_cfg *)base_outfmt_mcfg;
+
+	skl_set_base_module_format(ctx, mconfig, base_cfg);
+	skl_setup_out_format(ctx, mconfig, out_fmt);
+}
+
 static u16 skl_get_module_param_size(struct skl_sst *ctx,
 			struct skl_module_cfg *mconfig)
 {
@@ -492,6 +446,14 @@ static u16 skl_get_module_param_size(struct skl_sst *ctx,
 	case SKL_MODULE_TYPE_UPDWMIX:
 		return sizeof(struct skl_up_down_mixer_cfg);
 
+	case SKL_MODULE_TYPE_ALGO:
+		param_size = sizeof(struct skl_base_cfg);
+		param_size += mconfig->formats_config.caps_size;
+		return param_size;
+
+	case SKL_MODULE_TYPE_BASE_OUTFMT:
+		return sizeof(struct skl_base_outfmt_cfg);
+
 	default:
 		/*
 		 * return only base cfg when no specific module type is
@@ -538,6 +500,14 @@ static int skl_set_module_format(struct skl_sst *ctx,
 		skl_set_updown_mixer_format(ctx, module_config, *param_data);
 		break;
 
+	case SKL_MODULE_TYPE_ALGO:
+		skl_set_algo_format(ctx, module_config, *param_data);
+		break;
+
+	case SKL_MODULE_TYPE_BASE_OUTFMT:
+		skl_set_base_outfmt_format(ctx, module_config, *param_data);
+		break;
+
 	default:
 		skl_set_base_module_format(ctx, module_config, *param_data);
 		break;
@@ -571,10 +541,10 @@ static int skl_get_queue_index(struct skl_module_pin *mpin,
  * In static, the pin_index is fixed based on module_id and instance id
  */
 static int skl_alloc_queue(struct skl_module_pin *mpin,
-			struct skl_module_inst_id id, int max)
+			struct skl_module_cfg *tgt_cfg, int max)
 {
 	int i;
-
+	struct skl_module_inst_id id = tgt_cfg->id;
 	/*
 	 * if pin in dynamic, find first free pin
 	 * otherwise find match module and instance id pin as topology will
@@ -583,18 +553,25 @@ static int skl_alloc_queue(struct skl_module_pin *mpin,
 	 */
 	for (i = 0; i < max; i++)  {
 		if (mpin[i].is_dynamic) {
-			if (!mpin[i].in_use) {
+			if (!mpin[i].in_use &&
+				mpin[i].pin_state == SKL_PIN_UNBIND) {
+
 				mpin[i].in_use = true;
 				mpin[i].id.module_id = id.module_id;
 				mpin[i].id.instance_id = id.instance_id;
+				mpin[i].tgt_mcfg = tgt_cfg;
 				return i;
 			}
 		} else {
 			if (mpin[i].id.module_id == id.module_id &&
-				mpin[i].id.instance_id == id.instance_id)
+				mpin[i].id.instance_id == id.instance_id &&
+				mpin[i].pin_state == SKL_PIN_UNBIND) {
+
+				mpin[i].tgt_mcfg = tgt_cfg;
 				return i;
 			}
 		}
+	}
 
 	return -EINVAL;
 }
@@ -606,6 +583,28 @@ static void skl_free_queue(struct skl_module_pin *mpin, int q_index)
 		mpin[q_index].id.module_id = 0;
 		mpin[q_index].id.instance_id = 0;
 	}
+	mpin[q_index].pin_state = SKL_PIN_UNBIND;
+	mpin[q_index].tgt_mcfg = NULL;
+}
+
+/* Module state will be set to unint, if all the out pin state is UNBIND */
+
+static void skl_clear_module_state(struct skl_module_pin *mpin, int max,
+						struct skl_module_cfg *mcfg)
+{
+	int i;
+	bool found = false;
+
+	for (i = 0; i < max; i++)  {
+		if (mpin[i].pin_state == SKL_PIN_UNBIND)
+			continue;
+		found = true;
+		break;
+	}
+
+	if (!found)
+		mcfg->m_state = SKL_MODULE_UNINIT;
+	return;
 }
 
 /*
@@ -615,7 +614,7 @@ static void skl_free_queue(struct skl_module_pin *mpin, int q_index)
  * invoke the DSP by sending IPC INIT_INSTANCE using ipc helper
  */
 int skl_init_module(struct skl_sst *ctx,
-			struct skl_module_cfg *mconfig, char *param)
+			struct skl_module_cfg *mconfig)
 {
 	u16 module_config_size = 0;
 	void *param_data = NULL;
@@ -682,37 +681,30 @@ int skl_unbind_modules(struct skl_sst *ctx,
 	struct skl_module_inst_id dst_id = dst_mcfg->id;
 	int in_max = dst_mcfg->max_in_queue;
 	int out_max = src_mcfg->max_out_queue;
-	int src_index, dst_index;
+	int src_index, dst_index, src_pin_state, dst_pin_state;
 
 	skl_dump_bind_info(ctx, src_mcfg, dst_mcfg);
 
-	if (src_mcfg->m_state != SKL_MODULE_BIND_DONE)
-		return 0;
-
-	/*
-	 * if intra module unbind, check if both modules are BIND,
-	 * then send unbind
-	 */
-	if ((src_mcfg->pipe->ppl_id != dst_mcfg->pipe->ppl_id) &&
-				dst_mcfg->m_state != SKL_MODULE_BIND_DONE)
-		return 0;
-	else if (src_mcfg->m_state < SKL_MODULE_INIT_DONE &&
-				 dst_mcfg->m_state < SKL_MODULE_INIT_DONE)
-		return 0;
-
 	/* get src queue index */
 	src_index = skl_get_queue_index(src_mcfg->m_out_pin, dst_id, out_max);
 	if (src_index < 0)
 		return -EINVAL;
 
-	msg.src_queue = src_mcfg->m_out_pin[src_index].pin_index;
+	msg.src_queue = src_index;
 
 	/* get dst queue index */
 	dst_index  = skl_get_queue_index(dst_mcfg->m_in_pin, src_id, in_max);
 	if (dst_index < 0)
 		return -EINVAL;
 
-	msg.dst_queue = dst_mcfg->m_in_pin[dst_index].pin_index;
+	msg.dst_queue = dst_index;
+
+	src_pin_state = src_mcfg->m_out_pin[src_index].pin_state;
+	dst_pin_state = dst_mcfg->m_in_pin[dst_index].pin_state;
+
+	if (src_pin_state != SKL_PIN_BIND_DONE ||
+		dst_pin_state != SKL_PIN_BIND_DONE)
+		return 0;
 
 	msg.module_id = src_mcfg->id.module_id;
 	msg.instance_id = src_mcfg->id.instance_id;
@@ -722,10 +714,15 @@ int skl_unbind_modules(struct skl_sst *ctx,
 
 	ret = skl_ipc_bind_unbind(&ctx->ipc, &msg);
 	if (!ret) {
-		src_mcfg->m_state = SKL_MODULE_UNINIT;
 		/* free queue only if unbind is success */
 		skl_free_queue(src_mcfg->m_out_pin, src_index);
 		skl_free_queue(dst_mcfg->m_in_pin, dst_index);
+
+		/*
+		 * check only if src module bind state, bind is
+		 * always from src -> sink
+		 */
+		skl_clear_module_state(src_mcfg->m_out_pin, out_max, src_mcfg);
 	}
 
 	return ret;
@@ -744,8 +741,6 @@ int skl_bind_modules(struct skl_sst *ctx,
 {
 	int ret;
 	struct skl_ipc_bind_unbind_msg msg;
-	struct skl_module_inst_id src_id = src_mcfg->id;
-	struct skl_module_inst_id dst_id = dst_mcfg->id;
 	int in_max = dst_mcfg->max_in_queue;
 	int out_max = src_mcfg->max_out_queue;
 	int src_index, dst_index;
@@ -756,18 +751,18 @@ int skl_bind_modules(struct skl_sst *ctx,
 		dst_mcfg->m_state < SKL_MODULE_INIT_DONE)
 		return 0;
 
-	src_index = skl_alloc_queue(src_mcfg->m_out_pin, dst_id, out_max);
+	src_index = skl_alloc_queue(src_mcfg->m_out_pin, dst_mcfg, out_max);
 	if (src_index < 0)
 		return -EINVAL;
 
-	msg.src_queue = src_mcfg->m_out_pin[src_index].pin_index;
-	dst_index = skl_alloc_queue(dst_mcfg->m_in_pin, src_id, in_max);
+	msg.src_queue = src_index;
+	dst_index = skl_alloc_queue(dst_mcfg->m_in_pin, src_mcfg, in_max);
 	if (dst_index < 0) {
 		skl_free_queue(src_mcfg->m_out_pin, src_index);
 		return -EINVAL;
 	}
 
-	msg.dst_queue = dst_mcfg->m_in_pin[dst_index].pin_index;
+	msg.dst_queue = dst_index;
 
 	dev_dbg(ctx->dev, "src queue = %d dst queue =%d\n",
 			 msg.src_queue, msg.dst_queue);
@@ -782,6 +777,8 @@ int skl_bind_modules(struct skl_sst *ctx,
 
 	if (!ret) {
 		src_mcfg->m_state = SKL_MODULE_BIND_DONE;
+		src_mcfg->m_out_pin[src_index].pin_state = SKL_PIN_BIND_DONE;
+		dst_mcfg->m_in_pin[dst_index].pin_state = SKL_PIN_BIND_DONE;
 	} else {
 		/* error case , if IPC fails, clear the queue index */
 		skl_free_queue(src_mcfg->m_out_pin, src_index);
@@ -852,6 +849,8 @@ int skl_delete_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
 		ret = skl_ipc_delete_pipeline(&ctx->ipc, pipe->ppl_id);
 		if (ret < 0)
 			dev_err(ctx->dev, "Failed to delete pipeline\n");
+
+		pipe->state = SKL_PIPE_INVALID;
 	}
 
 	return ret;
@@ -916,3 +915,30 @@ int skl_stop_pipe(struct skl_sst *ctx, struct skl_pipe *pipe)
 
 	return 0;
 }
+
+/* Algo parameter set helper function */
+int skl_set_module_params(struct skl_sst *ctx, u32 *params, int size,
+				u32 param_id, struct skl_module_cfg *mcfg)
+{
+	struct skl_ipc_large_config_msg msg;
+
+	msg.module_id = mcfg->id.module_id;
+	msg.instance_id = mcfg->id.instance_id;
+	msg.param_data_size = size;
+	msg.large_param_id = param_id;
+
+	return skl_ipc_set_large_config(&ctx->ipc, &msg, params);
+}
+
+int skl_get_module_params(struct skl_sst *ctx, u32 *params, int size,
+			  u32 param_id, struct skl_module_cfg *mcfg)
+{
+	struct skl_ipc_large_config_msg msg;
+
+	msg.module_id = mcfg->id.module_id;
+	msg.instance_id = mcfg->id.instance_id;
+	msg.param_data_size = size;
+	msg.large_param_id = param_id;
+
+	return skl_ipc_get_large_config(&ctx->ipc, &msg, params);
+}

sound/soc/intel/skylake/skl-nhlt.c

@@ -55,7 +55,7 @@ void skl_nhlt_free(void *addr)
 
 static struct nhlt_specific_cfg *skl_get_specific_cfg(
 		struct device *dev, struct nhlt_fmt *fmt,
-		u8 no_ch, u32 rate, u16 bps)
+		u8 no_ch, u32 rate, u16 bps, u8 linktype)
 {
 	struct nhlt_specific_cfg *sp_config;
 	struct wav_fmt *wfmt;
@@ -68,10 +68,16 @@ static struct nhlt_specific_cfg *skl_get_specific_cfg(
 		wfmt = &fmt_config->fmt_ext.fmt;
 		dev_dbg(dev, "ch=%d fmt=%d s_rate=%d\n", wfmt->channels,
 			 wfmt->bits_per_sample, wfmt->samples_per_sec);
-		if (wfmt->channels == no_ch && wfmt->samples_per_sec == rate &&
-					wfmt->bits_per_sample == bps) {
+		if (wfmt->channels == no_ch && wfmt->bits_per_sample == bps) {
+			/*
+			 * if link type is dmic ignore rate check as the blob is
+			 * generic for all rates
+			 */
 			sp_config = &fmt_config->config;
+			if (linktype == NHLT_LINK_DMIC)
+				return sp_config;
 
+			if (wfmt->samples_per_sec == rate)
 				return sp_config;
 		}
 
@@ -115,7 +121,7 @@ struct nhlt_specific_cfg
 	struct device *dev = bus->dev;
 	struct nhlt_specific_cfg *sp_config;
 	struct nhlt_acpi_table *nhlt = (struct nhlt_acpi_table *)skl->nhlt;
-	u16 bps = num_ch * s_fmt;
+	u16 bps = (s_fmt == 16) ? 16 : 32;
 	u8 j;
 
 	dump_config(dev, instance, link_type, s_fmt, num_ch, s_rate, dirn, bps);
@@ -128,7 +134,8 @@ struct nhlt_specific_cfg
 		if (skl_check_ep_match(dev, epnt, instance, link_type, dirn)) {
 			fmt = (struct nhlt_fmt *)(epnt->config.caps +
 						 epnt->config.size);
-			sp_config = skl_get_specific_cfg(dev, fmt, num_ch, s_rate, bps);
+			sp_config = skl_get_specific_cfg(dev, fmt, num_ch,
+							s_rate, bps, link_type);
 			if (sp_config)
 				return sp_config;
 		}

sound/soc/intel/skylake/skl-pcm.c

@@ -28,6 +28,7 @@
 
 #define HDA_MONO 1
 #define HDA_STEREO 2
+#define HDA_QUAD 4
 
 static struct snd_pcm_hardware azx_pcm_hw = {
 	.info =			(SNDRV_PCM_INFO_MMAP |
@@ -39,12 +40,15 @@ static struct snd_pcm_hardware azx_pcm_hw = {
 				 SNDRV_PCM_INFO_HAS_WALL_CLOCK | /* legacy */
 				 SNDRV_PCM_INFO_HAS_LINK_ATIME |
 				 SNDRV_PCM_INFO_NO_PERIOD_WAKEUP),
-	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
-	.rates =		SNDRV_PCM_RATE_48000,
-	.rate_min =		48000,
+	.formats =		SNDRV_PCM_FMTBIT_S16_LE |
+				SNDRV_PCM_FMTBIT_S32_LE |
+				SNDRV_PCM_FMTBIT_S24_LE,
+	.rates =		SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000 |
+				SNDRV_PCM_RATE_8000,
+	.rate_min =		8000,
 	.rate_max =		48000,
-	.channels_min =		2,
-	.channels_max =		2,
+	.channels_min =		1,
+	.channels_max =		HDA_QUAD,
 	.buffer_bytes_max =	AZX_MAX_BUF_SIZE,
 	.period_bytes_min =	128,
 	.period_bytes_max =	AZX_MAX_BUF_SIZE / 2,
@@ -105,6 +109,31 @@ static enum hdac_ext_stream_type skl_get_host_stream_type(struct hdac_ext_bus *e
 		return HDAC_EXT_STREAM_TYPE_COUPLED;
 }
 
+/*
+ * check if the stream opened is marked as ignore_suspend by machine, if so
+ * then enable suspend_active refcount
+ *
+ * The count supend_active does not need lock as it is used in open/close
+ * and suspend context
+ */
+static void skl_set_suspend_active(struct snd_pcm_substream *substream,
+					 struct snd_soc_dai *dai, bool enable)
+{
+	struct hdac_ext_bus *ebus = dev_get_drvdata(dai->dev);
+	struct snd_soc_dapm_widget *w;
+	struct skl *skl = ebus_to_skl(ebus);
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		w = dai->playback_widget;
+	else
+		w = dai->capture_widget;
+
+	if (w->ignore_suspend && enable)
+		skl->supend_active++;
+	else if (w->ignore_suspend && !enable)
+		skl->supend_active--;
+}
+
 static int skl_pcm_open(struct snd_pcm_substream *substream,
 		struct snd_soc_dai *dai)
 {
@@ -112,12 +141,8 @@ static int skl_pcm_open(struct snd_pcm_substream *substream,
 	struct hdac_ext_stream *stream;
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct skl_dma_params *dma_params;
-	int ret;
 
 	dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
-	ret = pm_runtime_get_sync(dai->dev);
-	if (ret < 0)
-		return ret;
 
 	stream = snd_hdac_ext_stream_assign(ebus, substream,
 					skl_get_host_stream_type(ebus));
@@ -146,6 +171,7 @@ static int skl_pcm_open(struct snd_pcm_substream *substream,
 
 	dev_dbg(dai->dev, "stream tag set in dma params=%d\n",
 				 dma_params->stream_tag);
+	skl_set_suspend_active(substream, dai, true);
 	snd_pcm_set_sync(substream);
 
 	return 0;
@@ -185,10 +211,6 @@ static int skl_pcm_prepare(struct snd_pcm_substream *substream,
 	int err;
 
 	dev_dbg(dai->dev, "%s: %s\n", __func__, dai->name);
-	if (hdac_stream(stream)->prepared) {
-		dev_dbg(dai->dev, "already stream is prepared - returning\n");
-		return 0;
-	}
 
 	format_val = skl_get_format(substream, dai);
 	dev_dbg(dai->dev, "stream_tag=%d formatvalue=%d\n",
@@ -261,9 +283,8 @@ static void skl_pcm_close(struct snd_pcm_substream *substream,
 	 * dma_params
 	 */
 	snd_soc_dai_set_dma_data(dai, substream, NULL);
+	skl_set_suspend_active(substream, dai, false);
 
-	pm_runtime_mark_last_busy(dai->dev);
-	pm_runtime_put_autosuspend(dai->dev);
 	kfree(dma_params);
 }
 
@@ -291,7 +312,53 @@ static int skl_be_hw_params(struct snd_pcm_substream *substream,
 	p_params.ch = params_channels(params);
 	p_params.s_freq = params_rate(params);
 	p_params.stream = substream->stream;
-	skl_tplg_be_update_params(dai, &p_params);
+
+	return skl_tplg_be_update_params(dai, &p_params);
+}
+
+static int skl_decoupled_trigger(struct snd_pcm_substream *substream,
+		int cmd)
+{
+	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	struct hdac_ext_stream *stream;
+	int start;
+	unsigned long cookie;
+	struct hdac_stream *hstr;
+
+	stream = get_hdac_ext_stream(substream);
+	hstr = hdac_stream(stream);
+
+	if (!hstr->prepared)
+		return -EPIPE;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+	case SNDRV_PCM_TRIGGER_RESUME:
+		start = 1;
+		break;
+
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_STOP:
+		start = 0;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&bus->reg_lock, cookie);
+
+	if (start) {
+		snd_hdac_stream_start(hdac_stream(stream), true);
+		snd_hdac_stream_timecounter_init(hstr, 0);
+	} else {
+		snd_hdac_stream_stop(hdac_stream(stream));
+	}
+
+	spin_unlock_irqrestore(&bus->reg_lock, cookie);
 
 	return 0;
 }
@@ -302,23 +369,54 @@ static int skl_pcm_trigger(struct snd_pcm_substream *substream, int cmd,
 	struct skl *skl = get_skl_ctx(dai->dev);
 	struct skl_sst *ctx = skl->skl_sst;
 	struct skl_module_cfg *mconfig;
+	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+	struct hdac_ext_stream *stream = get_hdac_ext_stream(substream);
+	int ret;
 
 	mconfig = skl_tplg_fe_get_cpr_module(dai, substream->stream);
 	if (!mconfig)
 		return -EIO;
 
 	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
 	case SNDRV_PCM_TRIGGER_RESUME:
+		skl_pcm_prepare(substream, dai);
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		/*
+		 * Start HOST DMA and Start FE Pipe.This is to make sure that
+		 * there are no underrun/overrun in the case when the FE
+		 * pipeline is started but there is a delay in starting the
+		 * DMA channel on the host.
+		 */
+		snd_hdac_ext_stream_decouple(ebus, stream, true);
+		ret = skl_decoupled_trigger(substream, cmd);
+		if (ret < 0)
+			return ret;
 		return skl_run_pipe(ctx, mconfig->pipe);
+		break;
 
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
-		return skl_stop_pipe(ctx, mconfig->pipe);
+	case SNDRV_PCM_TRIGGER_STOP:
+		/*
+		 * Stop FE Pipe first and stop DMA. This is to make sure that
+		 * there are no underrun/overrun in the case if there is a delay
+		 * between the two operations.
+		 */
+		ret = skl_stop_pipe(ctx, mconfig->pipe);
+		if (ret < 0)
+			return ret;
+
+		ret = skl_decoupled_trigger(substream, cmd);
+		if (cmd == SNDRV_PCM_TRIGGER_SUSPEND)
+			snd_hdac_ext_stream_decouple(ebus, stream, false);
+		break;
 
 	default:
-		return 0;
+		return -EINVAL;
 	}
+
+	return 0;
 }
 
 static int skl_link_hw_params(struct snd_pcm_substream *substream,
@@ -352,9 +450,7 @@ static int skl_link_hw_params(struct snd_pcm_substream *substream,
 	p_params.stream = substream->stream;
 	p_params.link_dma_id = hdac_stream(link_dev)->stream_tag - 1;
 
-	skl_tplg_be_update_params(dai, &p_params);
-
-	return 0;
+	return skl_tplg_be_update_params(dai, &p_params);
 }
 
 static int skl_link_pcm_prepare(struct snd_pcm_substream *substream,
@@ -443,19 +539,6 @@ static int skl_link_hw_free(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static int skl_be_startup(struct snd_pcm_substream *substream,
-		struct snd_soc_dai *dai)
-{
-	return pm_runtime_get_sync(dai->dev);
-}
-
-static void skl_be_shutdown(struct snd_pcm_substream *substream,
-		struct snd_soc_dai *dai)
-{
-	pm_runtime_mark_last_busy(dai->dev);
-	pm_runtime_put_autosuspend(dai->dev);
-}
-
 static struct snd_soc_dai_ops skl_pcm_dai_ops = {
 	.startup = skl_pcm_open,
 	.shutdown = skl_pcm_close,
@@ -466,24 +549,18 @@ static struct snd_soc_dai_ops skl_pcm_dai_ops = {
 };
 
 static struct snd_soc_dai_ops skl_dmic_dai_ops = {
-	.startup = skl_be_startup,
 	.hw_params = skl_be_hw_params,
-	.shutdown = skl_be_shutdown,
 };
 
 static struct snd_soc_dai_ops skl_be_ssp_dai_ops = {
-	.startup = skl_be_startup,
 	.hw_params = skl_be_hw_params,
-	.shutdown = skl_be_shutdown,
 };
 
 static struct snd_soc_dai_ops skl_link_dai_ops = {
-	.startup = skl_be_startup,
 	.prepare = skl_link_pcm_prepare,
 	.hw_params = skl_link_hw_params,
 	.hw_free = skl_link_hw_free,
 	.trigger = skl_link_pcm_trigger,
-	.shutdown = skl_be_shutdown,
 };
 
 static struct snd_soc_dai_driver skl_platform_dai[] = {
@@ -511,7 +588,7 @@ static struct snd_soc_dai_driver skl_platform_dai[] = {
 	.capture = {
 		.stream_name = "Reference Capture",
 		.channels_min = HDA_MONO,
-		.channels_max = HDA_STEREO,
+		.channels_max = HDA_QUAD,
 		.rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
 	},
@@ -538,6 +615,18 @@ static struct snd_soc_dai_driver skl_platform_dai[] = {
 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
 	},
 },
+{
+	.name = "DMIC Pin",
+	.ops = &skl_pcm_dai_ops,
+	.capture = {
+		.stream_name = "DMIC Capture",
+		.channels_min = HDA_MONO,
+		.channels_max = HDA_QUAD,
+		.rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
+	},
+},
+
 /* BE CPU  Dais */
 {
 	.name = "SSP0 Pin",
@@ -557,6 +646,24 @@ static struct snd_soc_dai_driver skl_platform_dai[] = {
 		.formats = SNDRV_PCM_FMTBIT_S16_LE,
 	},
 },
+{
+	.name = "SSP1 Pin",
+	.ops = &skl_be_ssp_dai_ops,
+	.playback = {
+		.stream_name = "ssp1 Tx",
+		.channels_min = HDA_STEREO,
+		.channels_max = HDA_STEREO,
+		.rates = SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+	.capture = {
+		.stream_name = "ssp1 Rx",
+		.channels_min = HDA_STEREO,
+		.channels_max = HDA_STEREO,
+		.rates = SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE,
+	},
+},
 {
 	.name = "iDisp Pin",
 	.ops = &skl_link_dai_ops,
@@ -573,8 +680,8 @@ static struct snd_soc_dai_driver skl_platform_dai[] = {
 	.ops = &skl_dmic_dai_ops,
 	.capture = {
 		.stream_name = "DMIC01 Rx",
-		.channels_min = HDA_STEREO,
-		.channels_max = HDA_STEREO,
+		.channels_min = HDA_MONO,
+		.channels_max = HDA_QUAD,
 		.rates = SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_16000,
 		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE,
 	},
@@ -688,66 +795,15 @@ static int skl_coupled_trigger(struct snd_pcm_substream *substream,
 	return 0;
 }
 
-static int skl_decoupled_trigger(struct snd_pcm_substream *substream,
-		int cmd)
-{
-	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
-	struct snd_soc_pcm_runtime *rtd = snd_pcm_substream_chip(substream);
-	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
-	struct hdac_ext_stream *stream;
-	int start;
-	unsigned long cookie;
-	struct hdac_stream *hstr;
-
-	dev_dbg(bus->dev, "In %s cmd=%d streamname=%s\n", __func__, cmd, cpu_dai->name);
-
-	stream = get_hdac_ext_stream(substream);
-	hstr = hdac_stream(stream);
-
-	if (!hstr->prepared)
-		return -EPIPE;
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-	case SNDRV_PCM_TRIGGER_RESUME:
-		start = 1;
-		break;
-
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-	case SNDRV_PCM_TRIGGER_SUSPEND:
-	case SNDRV_PCM_TRIGGER_STOP:
-		start = 0;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	spin_lock_irqsave(&bus->reg_lock, cookie);
-
-	if (start)
-		snd_hdac_stream_start(hdac_stream(stream), true);
-	else
-		snd_hdac_stream_stop(hdac_stream(stream));
-
-	if (start)
-		snd_hdac_stream_timecounter_init(hstr, 0);
-
-	spin_unlock_irqrestore(&bus->reg_lock, cookie);
-
-	return 0;
-}
 static int skl_platform_pcm_trigger(struct snd_pcm_substream *substream,
 					int cmd)
 {
 	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
 
-	if (ebus->ppcap)
-		return skl_decoupled_trigger(substream, cmd);
-	else
+	if (!ebus->ppcap)
 		return skl_coupled_trigger(substream, cmd);
+
+	return 0;
 }
 
 /* calculate runtime delay from LPIB */
@@ -789,7 +845,7 @@ static unsigned int skl_get_position(struct hdac_ext_stream *hstream,
 {
 	struct hdac_stream *hstr = hdac_stream(hstream);
 	struct snd_pcm_substream *substream = hstr->substream;
-	struct hdac_ext_bus *ebus = get_bus_ctx(substream);
+	struct hdac_ext_bus *ebus;
 	unsigned int pos;
 	int delay;
 
@@ -800,6 +856,7 @@ static unsigned int skl_get_position(struct hdac_ext_stream *hstream,
 		pos = 0;
 
 	if (substream->runtime) {
+		ebus = get_bus_ctx(substream);
 		delay = skl_get_delay_from_lpib(ebus, hstream, pos)
 						 + codec_delay;
 		substream->runtime->delay += delay;
@@ -941,7 +998,6 @@ int skl_platform_register(struct device *dev)
 	struct skl *skl = ebus_to_skl(ebus);
 
 	INIT_LIST_HEAD(&skl->ppl_list);
-	INIT_LIST_HEAD(&skl->dapm_path_list);
 
 	ret = snd_soc_register_platform(dev, &skl_platform_drv);
 	if (ret) {

sound/soc/intel/skylake/skl-sst-cldma.c

@@ -18,6 +18,7 @@
 #include <linux/device.h>
 #include <linux/mm.h>
 #include <linux/kthread.h>
+#include <linux/delay.h>
 #include "../common/sst-dsp.h"
 #include "../common/sst-dsp-priv.h"
 
@@ -33,6 +34,53 @@ void skl_cldma_int_disable(struct sst_dsp *ctx)
 			SKL_ADSP_REG_ADSPIC, SKL_ADSPIC_CL_DMA, 0);
 }
 
+static void skl_cldma_stream_run(struct sst_dsp  *ctx, bool enable)
+{
+	unsigned char val;
+	int timeout;
+
+	sst_dsp_shim_update_bits_unlocked(ctx,
+			SKL_ADSP_REG_CL_SD_CTL,
+			CL_SD_CTL_RUN_MASK, CL_SD_CTL_RUN(enable));
+
+	udelay(3);
+	timeout = 300;
+	do {
+		/* waiting for hardware to report that the stream Run bit set */
+		val = sst_dsp_shim_read(ctx, SKL_ADSP_REG_CL_SD_CTL) &
+			CL_SD_CTL_RUN_MASK;
+		if (enable && val)
+			break;
+		else if (!enable && !val)
+			break;
+		udelay(3);
+	} while (--timeout);
+
+	if (timeout == 0)
+		dev_err(ctx->dev, "Failed to set Run bit=%d enable=%d\n", val, enable);
+}
+
+static void skl_cldma_stream_clear(struct sst_dsp  *ctx)
+{
+	/* make sure Run bit is cleared before setting stream register */
+	skl_cldma_stream_run(ctx, 0);
+
+	sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_CL_SD_CTL,
+				CL_SD_CTL_IOCE_MASK, CL_SD_CTL_IOCE(0));
+	sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_CL_SD_CTL,
+				CL_SD_CTL_FEIE_MASK, CL_SD_CTL_FEIE(0));
+	sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_CL_SD_CTL,
+				CL_SD_CTL_DEIE_MASK, CL_SD_CTL_DEIE(0));
+	sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_CL_SD_CTL,
+				CL_SD_CTL_STRM_MASK, CL_SD_CTL_STRM(0));
+
+	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_BDLPL, CL_SD_BDLPLBA(0));
+	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_BDLPU, 0);
+
+	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_CBL, 0);
+	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_LVI, 0);
+}
+
 /* Code loader helper APIs */
 static void skl_cldma_setup_bdle(struct sst_dsp *ctx,
 		struct snd_dma_buffer *dmab_data,
@@ -68,6 +116,7 @@ static void skl_cldma_setup_controller(struct sst_dsp  *ctx,
 		struct snd_dma_buffer *dmab_bdl, unsigned int max_size,
 		u32 count)
 {
+	skl_cldma_stream_clear(ctx);
 	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_BDLPL,
 			CL_SD_BDLPLBA(dmab_bdl->addr));
 	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_BDLPU,
@@ -107,36 +156,13 @@ static void skl_cldma_cleanup_spb(struct sst_dsp  *ctx)
 	sst_dsp_shim_write_unlocked(ctx, SKL_ADSP_REG_CL_SPBFIFO_SPIB, 0);
 }
 
-static void skl_cldma_trigger(struct sst_dsp  *ctx, bool enable)
-{
-	if (enable)
-		sst_dsp_shim_update_bits_unlocked(ctx,
-			SKL_ADSP_REG_CL_SD_CTL,
-			CL_SD_CTL_RUN_MASK, CL_SD_CTL_RUN(1));
-	else
-		sst_dsp_shim_update_bits_unlocked(ctx,
-			SKL_ADSP_REG_CL_SD_CTL,
-			CL_SD_CTL_RUN_MASK, CL_SD_CTL_RUN(0));
-}
-
 static void skl_cldma_cleanup(struct sst_dsp  *ctx)
 {
 	skl_cldma_cleanup_spb(ctx);
+	skl_cldma_stream_clear(ctx);
 
-	sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_CL_SD_CTL,
-				CL_SD_CTL_IOCE_MASK, CL_SD_CTL_IOCE(0));
-	sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_CL_SD_CTL,
-				CL_SD_CTL_FEIE_MASK, CL_SD_CTL_FEIE(0));
-	sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_CL_SD_CTL,
-				CL_SD_CTL_DEIE_MASK, CL_SD_CTL_DEIE(0));
-	sst_dsp_shim_update_bits(ctx, SKL_ADSP_REG_CL_SD_CTL,
-				CL_SD_CTL_STRM_MASK, CL_SD_CTL_STRM(0));
-
-	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_BDLPL, CL_SD_BDLPLBA(0));
-	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_BDLPU, 0);
-
-	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_CBL, 0);
-	sst_dsp_shim_write(ctx, SKL_ADSP_REG_CL_SD_LVI, 0);
+	ctx->dsp_ops.free_dma_buf(ctx->dev, &ctx->cl_dev.dmab_data);
+	ctx->dsp_ops.free_dma_buf(ctx->dev, &ctx->cl_dev.dmab_bdl);
 }
 
 static int skl_cldma_wait_interruptible(struct sst_dsp *ctx)
@@ -164,7 +190,7 @@ static int skl_cldma_wait_interruptible(struct sst_dsp *ctx)
 
 static void skl_cldma_stop(struct sst_dsp *ctx)
 {
-	ctx->cl_dev.ops.cl_trigger(ctx, false);
+	skl_cldma_stream_run(ctx, false);
 }
 
 static void skl_cldma_fill_buffer(struct sst_dsp *ctx, unsigned int size,
@@ -175,6 +201,21 @@ static void skl_cldma_fill_buffer(struct sst_dsp *ctx, unsigned int size,
 			ctx->cl_dev.dma_buffer_offset, trigger);
 	dev_dbg(ctx->dev, "spib position: %d\n", ctx->cl_dev.curr_spib_pos);
 
+	/*
+	 * Check if the size exceeds buffer boundary. If it exceeds
+	 * max_buffer size, then copy till buffer size and then copy
+	 * remaining buffer from the start of ring buffer.
+	 */
+	if (ctx->cl_dev.dma_buffer_offset + size > ctx->cl_dev.bufsize) {
+		unsigned int size_b = ctx->cl_dev.bufsize -
+					ctx->cl_dev.dma_buffer_offset;
+		memcpy(ctx->cl_dev.dmab_data.area + ctx->cl_dev.dma_buffer_offset,
+			curr_pos, size_b);
+		size -= size_b;
+		curr_pos += size_b;
+		ctx->cl_dev.dma_buffer_offset = 0;
+	}
+
 	memcpy(ctx->cl_dev.dmab_data.area + ctx->cl_dev.dma_buffer_offset,
 			curr_pos, size);
 
@@ -291,7 +332,7 @@ int skl_cldma_prepare(struct sst_dsp *ctx)
 	ctx->cl_dev.ops.cl_setup_controller = skl_cldma_setup_controller;
 	ctx->cl_dev.ops.cl_setup_spb = skl_cldma_setup_spb;
 	ctx->cl_dev.ops.cl_cleanup_spb = skl_cldma_cleanup_spb;
-	ctx->cl_dev.ops.cl_trigger = skl_cldma_trigger;
+	ctx->cl_dev.ops.cl_trigger = skl_cldma_stream_run;
 	ctx->cl_dev.ops.cl_cleanup_controller = skl_cldma_cleanup;
 	ctx->cl_dev.ops.cl_copy_to_dmabuf = skl_cldma_copy_to_buf;
 	ctx->cl_dev.ops.cl_stop_dma = skl_cldma_stop;

sound/soc/intel/skylake/skl-sst-dsp.h

@@ -58,9 +58,9 @@ struct sst_dsp_device;
 
 #define SKL_ADSP_MMIO_LEN		0x10000
 
-#define SKL_ADSP_W0_STAT_SZ		0x800
+#define SKL_ADSP_W0_STAT_SZ		0x1000
 
-#define SKL_ADSP_W0_UP_SZ		0x800
+#define SKL_ADSP_W0_UP_SZ		0x1000
 
 #define SKL_ADSP_W1_SZ			0x1000
 
@@ -114,6 +114,9 @@ struct skl_dsp_fw_ops {
 	int (*set_state_D0)(struct sst_dsp *ctx);
 	int (*set_state_D3)(struct sst_dsp *ctx);
 	unsigned int (*get_fw_errcode)(struct sst_dsp *ctx);
+	int (*load_mod)(struct sst_dsp *ctx, u16 mod_id, char *mod_name);
+	int (*unload_mod)(struct sst_dsp *ctx, u16 mod_id);
+
 };
 
 struct skl_dsp_loader_ops {
@@ -123,6 +126,17 @@ struct skl_dsp_loader_ops {
 		struct snd_dma_buffer *dmab);
 };
 
+struct skl_load_module_info {
+	u16 mod_id;
+	const struct firmware *fw;
+};
+
+struct skl_module_table {
+	struct skl_load_module_info *mod_info;
+	unsigned int usage_cnt;
+	struct list_head list;
+};
+
 void skl_cldma_process_intr(struct sst_dsp *ctx);
 void skl_cldma_int_disable(struct sst_dsp *ctx);
 int skl_cldma_prepare(struct sst_dsp *ctx);
@@ -139,7 +153,8 @@ void skl_dsp_free(struct sst_dsp *dsp);
 
 int skl_dsp_boot(struct sst_dsp *ctx);
 int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
-		struct skl_dsp_loader_ops dsp_ops, struct skl_sst **dsp);
+		const char *fw_name, struct skl_dsp_loader_ops dsp_ops,
+		struct skl_sst **dsp);
 void skl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx);
 
 #endif /*__SKL_SST_DSP_H__*/

sound/soc/intel/skylake/skl-sst-ipc.c

@@ -130,6 +130,11 @@
 #define IPC_SRC_QUEUE_MASK		0x7
 #define IPC_SRC_QUEUE(x)		(((x) & IPC_SRC_QUEUE_MASK) \
 					<< IPC_SRC_QUEUE_SHIFT)
+/* Load Module count */
+#define IPC_LOAD_MODULE_SHIFT		0
+#define IPC_LOAD_MODULE_MASK		0xFF
+#define IPC_LOAD_MODULE_CNT(x)		(((x) & IPC_LOAD_MODULE_MASK) \
+					<< IPC_LOAD_MODULE_SHIFT)
 
 /* Save pipeline messgae extension register */
 #define IPC_DMA_ID_SHIFT		0
@@ -344,6 +349,8 @@ static void skl_ipc_process_reply(struct sst_generic_ipc *ipc,
 	switch (reply) {
 	case IPC_GLB_REPLY_SUCCESS:
 		dev_info(ipc->dev, "ipc FW reply %x: success\n", header.primary);
+		/* copy the rx data from the mailbox */
+		sst_dsp_inbox_read(ipc->dsp, msg->rx_data, msg->rx_size);
 		break;
 
 	case IPC_GLB_REPLY_OUT_OF_MEMORY:
@@ -650,7 +657,7 @@ int skl_ipc_set_dx(struct sst_generic_ipc *ipc, u8 instance_id,
 	dev_dbg(ipc->dev, "In %s primary =%x ext=%x\n", __func__,
 			 header.primary, header.extension);
 	ret = sst_ipc_tx_message_wait(ipc, *ipc_header,
-				dx, sizeof(dx), NULL, 0);
+				dx, sizeof(*dx), NULL, 0);
 	if (ret < 0) {
 		dev_err(ipc->dev, "ipc: set dx failed, err %d\n", ret);
 		return ret;
@@ -728,6 +735,54 @@ int skl_ipc_bind_unbind(struct sst_generic_ipc *ipc,
 }
 EXPORT_SYMBOL_GPL(skl_ipc_bind_unbind);
 
+/*
+ * In order to load a module we need to send IPC to initiate that. DMA will
+ * performed to load the module memory. The FW supports multiple module load
+ * at single shot, so we can send IPC with N modules represented by
+ * module_cnt
+ */
+int skl_ipc_load_modules(struct sst_generic_ipc *ipc,
+				u8 module_cnt, void *data)
+{
+	struct skl_ipc_header header = {0};
+	u64 *ipc_header = (u64 *)(&header);
+	int ret;
+
+	header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG);
+	header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+	header.primary |= IPC_GLB_TYPE(IPC_GLB_LOAD_MULTIPLE_MODS);
+	header.primary |= IPC_LOAD_MODULE_CNT(module_cnt);
+
+	ret = sst_ipc_tx_message_wait(ipc, *ipc_header, data,
+				(sizeof(u16) * module_cnt), NULL, 0);
+	if (ret < 0)
+		dev_err(ipc->dev, "ipc: load modules failed :%d\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_load_modules);
+
+int skl_ipc_unload_modules(struct sst_generic_ipc *ipc, u8 module_cnt,
+							void *data)
+{
+	struct skl_ipc_header header = {0};
+	u64 *ipc_header = (u64 *)(&header);
+	int ret;
+
+	header.primary = IPC_MSG_TARGET(IPC_FW_GEN_MSG);
+	header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+	header.primary |= IPC_GLB_TYPE(IPC_GLB_UNLOAD_MULTIPLE_MODS);
+	header.primary |= IPC_LOAD_MODULE_CNT(module_cnt);
+
+	ret = sst_ipc_tx_message_wait(ipc, *ipc_header, data,
+				(sizeof(u16) * module_cnt), NULL, 0);
+	if (ret < 0)
+		dev_err(ipc->dev, "ipc: unload modules failed :%d\n", ret);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_unload_modules);
+
 int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
 		struct skl_ipc_large_config_msg *msg, u32 *param)
 {
@@ -781,3 +836,54 @@ int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
 	return ret;
 }
 EXPORT_SYMBOL_GPL(skl_ipc_set_large_config);
+
+int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
+		struct skl_ipc_large_config_msg *msg, u32 *param)
+{
+	struct skl_ipc_header header = {0};
+	u64 *ipc_header = (u64 *)(&header);
+	int ret = 0;
+	size_t sz_remaining, rx_size, data_offset;
+
+	header.primary = IPC_MSG_TARGET(IPC_MOD_MSG);
+	header.primary |= IPC_MSG_DIR(IPC_MSG_REQUEST);
+	header.primary |= IPC_GLB_TYPE(IPC_MOD_LARGE_CONFIG_GET);
+	header.primary |= IPC_MOD_INSTANCE_ID(msg->instance_id);
+	header.primary |= IPC_MOD_ID(msg->module_id);
+
+	header.extension = IPC_DATA_OFFSET_SZ(msg->param_data_size);
+	header.extension |= IPC_LARGE_PARAM_ID(msg->large_param_id);
+	header.extension |= IPC_FINAL_BLOCK(1);
+	header.extension |= IPC_INITIAL_BLOCK(1);
+
+	sz_remaining = msg->param_data_size;
+	data_offset = 0;
+
+	while (sz_remaining != 0) {
+		rx_size = sz_remaining > SKL_ADSP_W1_SZ
+				? SKL_ADSP_W1_SZ : sz_remaining;
+		if (rx_size == sz_remaining)
+			header.extension |= IPC_FINAL_BLOCK(1);
+
+		ret = sst_ipc_tx_message_wait(ipc, *ipc_header, NULL, 0,
+					      ((char *)param) + data_offset,
+					      msg->param_data_size);
+		if (ret < 0) {
+			dev_err(ipc->dev,
+				"ipc: get large config fail, err: %d\n", ret);
+			return ret;
+		}
+		sz_remaining -= rx_size;
+		data_offset = msg->param_data_size - sz_remaining;
+
+		/* clear the fields */
+		header.extension &= IPC_INITIAL_BLOCK_CLEAR;
+		header.extension &= IPC_DATA_OFFSET_SZ_CLEAR;
+		/* fill the fields */
+		header.extension |= IPC_INITIAL_BLOCK(1);
+		header.extension |= IPC_DATA_OFFSET_SZ(data_offset);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(skl_ipc_get_large_config);

sound/soc/intel/skylake/skl-sst-ipc.h

@@ -108,12 +108,21 @@ int skl_ipc_init_instance(struct sst_generic_ipc *sst_ipc,
 int skl_ipc_bind_unbind(struct sst_generic_ipc *sst_ipc,
 		struct skl_ipc_bind_unbind_msg *msg);
 
+int skl_ipc_load_modules(struct sst_generic_ipc *ipc,
+				u8 module_cnt, void *data);
+
+int skl_ipc_unload_modules(struct sst_generic_ipc *ipc,
+				u8 module_cnt, void *data);
+
 int skl_ipc_set_dx(struct sst_generic_ipc *ipc,
 		u8 instance_id, u16 module_id, struct skl_ipc_dxstate_info *dx);
 
 int skl_ipc_set_large_config(struct sst_generic_ipc *ipc,
 		struct skl_ipc_large_config_msg *msg, u32 *param);
 
+int skl_ipc_get_large_config(struct sst_generic_ipc *ipc,
+		struct skl_ipc_large_config_msg *msg, u32 *param);
+
 void skl_ipc_int_enable(struct sst_dsp *dsp);
 void skl_ipc_op_int_enable(struct sst_dsp *ctx);
 void skl_ipc_op_int_disable(struct sst_dsp *ctx);

sound/soc/intel/skylake/skl-sst.c

@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/device.h>
+#include <linux/err.h>
 #include "../common/sst-dsp.h"
 #include "../common/sst-dsp-priv.h"
 #include "../common/sst-ipc.h"
@@ -37,6 +38,8 @@
 #define SKL_INSTANCE_ID		0
 #define SKL_BASE_FW_MODULE_ID	0
 
+#define SKL_NUM_MODULES		1
+
 static bool skl_check_fw_status(struct sst_dsp *ctx, u32 status)
 {
 	u32 cur_sts;
@@ -77,7 +80,7 @@ static int skl_load_base_firmware(struct sst_dsp *ctx)
 	init_waitqueue_head(&skl->boot_wait);
 
 	if (ctx->fw == NULL) {
-		ret = request_firmware(&ctx->fw, "dsp_fw_release.bin", ctx->dev);
+		ret = request_firmware(&ctx->fw, ctx->fw_name, ctx->dev);
 		if (ret < 0) {
 			dev_err(ctx->dev, "Request firmware failed %d\n", ret);
 			skl_dsp_disable_core(ctx);
@@ -115,27 +118,28 @@ static int skl_load_base_firmware(struct sst_dsp *ctx)
 		dev_err(ctx->dev,
 			"Timeout waiting for ROM init done, reg:0x%x\n", reg);
 		ret = -EIO;
-		goto skl_load_base_firmware_failed;
+		goto transfer_firmware_failed;
 	}
 
 	ret = skl_transfer_firmware(ctx, ctx->fw->data, ctx->fw->size);
 	if (ret < 0) {
 		dev_err(ctx->dev, "Transfer firmware failed%d\n", ret);
-		goto skl_load_base_firmware_failed;
+		goto transfer_firmware_failed;
 	} else {
 		ret = wait_event_timeout(skl->boot_wait, skl->boot_complete,
 					msecs_to_jiffies(SKL_IPC_BOOT_MSECS));
 		if (ret == 0) {
 			dev_err(ctx->dev, "DSP boot failed, FW Ready timed-out\n");
 			ret = -EIO;
-			goto skl_load_base_firmware_failed;
+			goto transfer_firmware_failed;
 		}
 
 		dev_dbg(ctx->dev, "Download firmware successful%d\n", ret);
 		skl_dsp_set_state_locked(ctx, SKL_DSP_RUNNING);
 	}
 	return 0;
-
+transfer_firmware_failed:
+	ctx->cl_dev.ops.cl_cleanup_controller(ctx);
 skl_load_base_firmware_failed:
 	skl_dsp_disable_core(ctx);
 	release_firmware(ctx->fw);
@@ -175,10 +179,15 @@ static int skl_set_dsp_D3(struct sst_dsp *ctx)
 	dx.core_mask = SKL_DSP_CORE0_MASK;
 	dx.dx_mask = SKL_IPC_D3_MASK;
 	ret = skl_ipc_set_dx(&skl->ipc, SKL_INSTANCE_ID, SKL_BASE_FW_MODULE_ID, &dx);
-	if (ret < 0) {
-		dev_err(ctx->dev, "Failed to set DSP to D3 state\n");
-		return ret;
-	}
+	if (ret < 0)
+		dev_err(ctx->dev,
+			"D3 request to FW failed, continuing reset: %d", ret);
+
+	/* disable Interrupt */
+	ctx->cl_dev.ops.cl_cleanup_controller(ctx);
+	skl_cldma_int_disable(ctx);
+	skl_ipc_op_int_disable(ctx);
+	skl_ipc_int_disable(ctx);
 
 	ret = skl_dsp_disable_core(ctx);
 	if (ret < 0) {
@@ -187,12 +196,6 @@ static int skl_set_dsp_D3(struct sst_dsp *ctx)
 	}
 	skl_dsp_set_state_locked(ctx, SKL_DSP_RESET);
 
-	/* disable Interrupt */
-	ctx->cl_dev.ops.cl_cleanup_controller(ctx);
-	skl_cldma_int_disable(ctx);
-	skl_ipc_op_int_disable(ctx);
-	skl_ipc_int_disable(ctx);
-
 	return ret;
 }
 
@@ -201,11 +204,182 @@ static unsigned int skl_get_errorcode(struct sst_dsp *ctx)
 	 return sst_dsp_shim_read(ctx, SKL_ADSP_ERROR_CODE);
 }
 
+/*
+ * since get/set_module are called from DAPM context,
+ * we don't need lock for usage count
+ */
+static int skl_get_module(struct sst_dsp *ctx, u16 mod_id)
+{
+	struct skl_module_table *module;
+
+	list_for_each_entry(module, &ctx->module_list, list) {
+		if (module->mod_info->mod_id == mod_id)
+			return ++module->usage_cnt;
+	}
+
+	return -EINVAL;
+}
+
+static int skl_put_module(struct sst_dsp *ctx, u16 mod_id)
+{
+	struct skl_module_table *module;
+
+	list_for_each_entry(module, &ctx->module_list, list) {
+		if (module->mod_info->mod_id == mod_id)
+			return --module->usage_cnt;
+	}
+
+	return -EINVAL;
+}
+
+static struct skl_module_table *skl_fill_module_table(struct sst_dsp *ctx,
+						char *mod_name, int mod_id)
+{
+	const struct firmware *fw;
+	struct skl_module_table *skl_module;
+	unsigned int size;
+	int ret;
+
+	ret = request_firmware(&fw, mod_name, ctx->dev);
+	if (ret < 0) {
+		dev_err(ctx->dev, "Request Module %s failed :%d\n",
+							mod_name, ret);
+		return NULL;
+	}
+
+	skl_module = devm_kzalloc(ctx->dev, sizeof(*skl_module), GFP_KERNEL);
+	if (skl_module == NULL) {
+		release_firmware(fw);
+		return NULL;
+	}
+
+	size = sizeof(*skl_module->mod_info);
+	skl_module->mod_info = devm_kzalloc(ctx->dev, size, GFP_KERNEL);
+	if (skl_module->mod_info == NULL) {
+		release_firmware(fw);
+		return NULL;
+	}
+
+	skl_module->mod_info->mod_id = mod_id;
+	skl_module->mod_info->fw = fw;
+	list_add(&skl_module->list, &ctx->module_list);
+
+	return skl_module;
+}
+
+/* get a module from it's unique ID */
+static struct skl_module_table *skl_module_get_from_id(
+			struct sst_dsp *ctx, u16 mod_id)
+{
+	struct skl_module_table *module;
+
+	if (list_empty(&ctx->module_list)) {
+		dev_err(ctx->dev, "Module list is empty\n");
+		return NULL;
+	}
+
+	list_for_each_entry(module, &ctx->module_list, list) {
+		if (module->mod_info->mod_id == mod_id)
+			return module;
+	}
+
+	return NULL;
+}
+
+static int skl_transfer_module(struct sst_dsp *ctx,
+			struct skl_load_module_info *module)
+{
+	int ret;
+	struct skl_sst *skl = ctx->thread_context;
+
+	ret = ctx->cl_dev.ops.cl_copy_to_dmabuf(ctx, module->fw->data,
+							module->fw->size);
+	if (ret < 0)
+		return ret;
+
+	ret = skl_ipc_load_modules(&skl->ipc, SKL_NUM_MODULES,
+						(void *)&module->mod_id);
+	if (ret < 0)
+		dev_err(ctx->dev, "Failed to Load module: %d\n", ret);
+
+	ctx->cl_dev.ops.cl_stop_dma(ctx);
+
+	return ret;
+}
+
+static int skl_load_module(struct sst_dsp *ctx, u16 mod_id, char *guid)
+{
+	struct skl_module_table *module_entry = NULL;
+	int ret = 0;
+	char mod_name[64]; /* guid str = 32 chars + 4 hyphens */
+
+	snprintf(mod_name, sizeof(mod_name), "%s%s%s",
+			"intel/dsp_fw_", guid, ".bin");
+
+	module_entry = skl_module_get_from_id(ctx, mod_id);
+	if (module_entry == NULL) {
+		module_entry = skl_fill_module_table(ctx, mod_name, mod_id);
+		if (module_entry == NULL) {
+			dev_err(ctx->dev, "Failed to Load module\n");
+			return -EINVAL;
+		}
+	}
+
+	if (!module_entry->usage_cnt) {
+		ret = skl_transfer_module(ctx, module_entry->mod_info);
+		if (ret < 0) {
+			dev_err(ctx->dev, "Failed to Load module\n");
+			return ret;
+		}
+	}
+
+	ret = skl_get_module(ctx, mod_id);
+
+	return ret;
+}
+
+static int skl_unload_module(struct sst_dsp *ctx, u16 mod_id)
+{
+	int usage_cnt;
+	struct skl_sst *skl = ctx->thread_context;
+	int ret = 0;
+
+	usage_cnt = skl_put_module(ctx, mod_id);
+	if (usage_cnt < 0) {
+		dev_err(ctx->dev, "Module bad usage cnt!:%d\n", usage_cnt);
+		return -EIO;
+	}
+	ret = skl_ipc_unload_modules(&skl->ipc,
+			SKL_NUM_MODULES, &mod_id);
+	if (ret < 0) {
+		dev_err(ctx->dev, "Failed to UnLoad module\n");
+		skl_get_module(ctx, mod_id);
+		return ret;
+	}
+
+	return ret;
+}
+
+static void skl_clear_module_table(struct sst_dsp *ctx)
+{
+	struct skl_module_table *module, *tmp;
+
+	if (list_empty(&ctx->module_list))
+		return;
+
+	list_for_each_entry_safe(module, tmp, &ctx->module_list, list) {
+		list_del(&module->list);
+		release_firmware(module->mod_info->fw);
+	}
+}
+
 static struct skl_dsp_fw_ops skl_fw_ops = {
 	.set_state_D0 = skl_set_dsp_D0,
 	.set_state_D3 = skl_set_dsp_D3,
 	.load_fw = skl_load_base_firmware,
 	.get_fw_errcode = skl_get_errorcode,
+	.load_mod = skl_load_module,
+	.unload_mod = skl_unload_module,
 };
 
 static struct sst_ops skl_ops = {
@@ -223,7 +397,7 @@ static struct sst_dsp_device skl_dev = {
 };
 
 int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
-		struct skl_dsp_loader_ops dsp_ops, struct skl_sst **dsp)
+		const char *fw_name, struct skl_dsp_loader_ops dsp_ops, struct skl_sst **dsp)
 {
 	struct skl_sst *skl;
 	struct sst_dsp *sst;
@@ -244,11 +418,13 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 
 	sst = skl->dsp;
 
+	sst->fw_name = fw_name;
 	sst->addr.lpe = mmio_base;
 	sst->addr.shim = mmio_base;
 	sst_dsp_mailbox_init(sst, (SKL_ADSP_SRAM0_BASE + SKL_ADSP_W0_STAT_SZ),
 			SKL_ADSP_W0_UP_SZ, SKL_ADSP_SRAM1_BASE, SKL_ADSP_W1_SZ);
 
+	INIT_LIST_HEAD(&sst->module_list);
 	sst->dsp_ops = dsp_ops;
 	sst->fw_ops = skl_fw_ops;
 
@@ -259,23 +435,24 @@ int skl_sst_dsp_init(struct device *dev, void __iomem *mmio_base, int irq,
 	ret = sst->fw_ops.load_fw(sst);
 	if (ret < 0) {
 		dev_err(dev, "Load base fw failed : %d", ret);
-		return ret;
+		goto cleanup;
 	}
 
 	if (dsp)
 		*dsp = skl;
 
-	return 0;
+	return ret;
 
-	skl_ipc_free(&skl->ipc);
+cleanup:
+	skl_sst_dsp_cleanup(dev, skl);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(skl_sst_dsp_init);
 
 void skl_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx)
 {
+	skl_clear_module_table(ctx->dsp);
 	skl_ipc_free(&ctx->ipc);
-	ctx->dsp->cl_dev.ops.cl_cleanup_controller(ctx->dsp);
 	ctx->dsp->ops->free(ctx->dsp);
 }
 EXPORT_SYMBOL_GPL(skl_sst_dsp_cleanup);

sound/soc/intel/skylake/skl-topology.c

@@ -26,6 +26,8 @@
 #include "skl-topology.h"
 #include "skl.h"
 #include "skl-tplg-interface.h"
+#include "../common/sst-dsp.h"
+#include "../common/sst-dsp-priv.h"
 
 #define SKL_CH_FIXUP_MASK		(1 << 0)
 #define SKL_RATE_FIXUP_MASK		(1 << 1)
@@ -129,17 +131,15 @@ static void skl_dump_mconfig(struct skl_sst *ctx,
 {
 	dev_dbg(ctx->dev, "Dumping config\n");
 	dev_dbg(ctx->dev, "Input Format:\n");
-	dev_dbg(ctx->dev, "channels = %d\n", mcfg->in_fmt.channels);
-	dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->in_fmt.s_freq);
-	dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->in_fmt.ch_cfg);
-	dev_dbg(ctx->dev, "valid bit depth = %d\n",
-			mcfg->in_fmt.valid_bit_depth);
+	dev_dbg(ctx->dev, "channels = %d\n", mcfg->in_fmt[0].channels);
+	dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->in_fmt[0].s_freq);
+	dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->in_fmt[0].ch_cfg);
+	dev_dbg(ctx->dev, "valid bit depth = %d\n", mcfg->in_fmt[0].valid_bit_depth);
 	dev_dbg(ctx->dev, "Output Format:\n");
-	dev_dbg(ctx->dev, "channels = %d\n", mcfg->out_fmt.channels);
-	dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->out_fmt.s_freq);
-	dev_dbg(ctx->dev, "valid bit depth = %d\n",
-			mcfg->out_fmt.valid_bit_depth);
-	dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->out_fmt.ch_cfg);
+	dev_dbg(ctx->dev, "channels = %d\n", mcfg->out_fmt[0].channels);
+	dev_dbg(ctx->dev, "s_freq = %d\n", mcfg->out_fmt[0].s_freq);
+	dev_dbg(ctx->dev, "valid bit depth = %d\n", mcfg->out_fmt[0].valid_bit_depth);
+	dev_dbg(ctx->dev, "ch_cfg = %d\n", mcfg->out_fmt[0].ch_cfg);
 }
 
 static void skl_tplg_update_params(struct skl_module_fmt *fmt,
@@ -149,8 +149,24 @@ static void skl_tplg_update_params(struct skl_module_fmt *fmt,
 		fmt->s_freq = params->s_freq;
 	if (fixup & SKL_CH_FIXUP_MASK)
 		fmt->channels = params->ch;
-	if (fixup & SKL_FMT_FIXUP_MASK)
-		fmt->valid_bit_depth = params->s_fmt;
+	if (fixup & SKL_FMT_FIXUP_MASK) {
+		fmt->valid_bit_depth = skl_get_bit_depth(params->s_fmt);
+
+		/*
+		 * 16 bit is 16 bit container whereas 24 bit is in 32 bit
+		 * container so update bit depth accordingly
+		 */
+		switch (fmt->valid_bit_depth) {
+		case SKL_DEPTH_16BIT:
+			fmt->bit_depth = fmt->valid_bit_depth;
+			break;
+
+		default:
+			fmt->bit_depth = SKL_DEPTH_32BIT;
+			break;
+		}
+	}
+
 }
 
 /*
@@ -171,8 +187,9 @@ static void skl_tplg_update_params_fixup(struct skl_module_cfg *m_cfg,
 	int in_fixup, out_fixup;
 	struct skl_module_fmt *in_fmt, *out_fmt;
 
-	in_fmt = &m_cfg->in_fmt;
-	out_fmt = &m_cfg->out_fmt;
+	/* Fixups will be applied to pin 0 only */
+	in_fmt = &m_cfg->in_fmt[0];
+	out_fmt = &m_cfg->out_fmt[0];
 
 	if (params->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		if (is_fe) {
@@ -209,18 +226,25 @@ static void skl_tplg_update_buffer_size(struct skl_sst *ctx,
 				struct skl_module_cfg *mcfg)
 {
 	int multiplier = 1;
+	struct skl_module_fmt *in_fmt, *out_fmt;
+
+
+	/* Since fixups is applied to pin 0 only, ibs, obs needs
+	 * change for pin 0 only
+	 */
+	in_fmt = &mcfg->in_fmt[0];
+	out_fmt = &mcfg->out_fmt[0];
 
 	if (mcfg->m_type == SKL_MODULE_TYPE_SRCINT)
 		multiplier = 5;
-
-	mcfg->ibs = (mcfg->in_fmt.s_freq / 1000) *
-				(mcfg->in_fmt.channels) *
-				(mcfg->in_fmt.bit_depth >> 3) *
+	mcfg->ibs = (in_fmt->s_freq / 1000) *
+				(mcfg->in_fmt->channels) *
+				(mcfg->in_fmt->bit_depth >> 3) *
 				multiplier;
 
-	mcfg->obs = (mcfg->out_fmt.s_freq / 1000) *
-				(mcfg->out_fmt.channels) *
-				(mcfg->out_fmt.bit_depth >> 3) *
+	mcfg->obs = (mcfg->out_fmt->s_freq / 1000) *
+				(mcfg->out_fmt->channels) *
+				(mcfg->out_fmt->bit_depth >> 3) *
 				multiplier;
 }
 
@@ -291,6 +315,83 @@ static int skl_tplg_alloc_pipe_widget(struct device *dev,
 	return 0;
 }
 
+/*
+ * some modules can have multiple params set from user control and
+ * need to be set after module is initialized. If set_param flag is
+ * set module params will be done after module is initialised.
+ */
+static int skl_tplg_set_module_params(struct snd_soc_dapm_widget *w,
+						struct skl_sst *ctx)
+{
+	int i, ret;
+	struct skl_module_cfg *mconfig = w->priv;
+	const struct snd_kcontrol_new *k;
+	struct soc_bytes_ext *sb;
+	struct skl_algo_data *bc;
+	struct skl_specific_cfg *sp_cfg;
+
+	if (mconfig->formats_config.caps_size > 0 &&
+		mconfig->formats_config.set_params == SKL_PARAM_SET) {
+		sp_cfg = &mconfig->formats_config;
+		ret = skl_set_module_params(ctx, sp_cfg->caps,
+					sp_cfg->caps_size,
+					sp_cfg->param_id, mconfig);
+		if (ret < 0)
+			return ret;
+	}
+
+	for (i = 0; i < w->num_kcontrols; i++) {
+		k = &w->kcontrol_news[i];
+		if (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+			sb = (void *) k->private_value;
+			bc = (struct skl_algo_data *)sb->dobj.private;
+
+			if (bc->set_params == SKL_PARAM_SET) {
+				ret = skl_set_module_params(ctx,
+						(u32 *)bc->params, bc->max,
+						bc->param_id, mconfig);
+				if (ret < 0)
+					return ret;
+			}
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * some module param can set from user control and this is required as
+ * when module is initailzed. if module param is required in init it is
+ * identifed by set_param flag. if set_param flag is not set, then this
+ * parameter needs to set as part of module init.
+ */
+static int skl_tplg_set_module_init_data(struct snd_soc_dapm_widget *w)
+{
+	const struct snd_kcontrol_new *k;
+	struct soc_bytes_ext *sb;
+	struct skl_algo_data *bc;
+	struct skl_module_cfg *mconfig = w->priv;
+	int i;
+
+	for (i = 0; i < w->num_kcontrols; i++) {
+		k = &w->kcontrol_news[i];
+		if (k->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+			sb = (struct soc_bytes_ext *)k->private_value;
+			bc = (struct skl_algo_data *)sb->dobj.private;
+
+			if (bc->set_params != SKL_PARAM_INIT)
+				continue;
+
+			mconfig->formats_config.caps = (u32 *)&bc->params;
+			mconfig->formats_config.caps_size = bc->max;
+
+			break;
+		}
+	}
+
+	return 0;
+}
+
 /*
  * Inside a pipe instance, we can have various modules. These modules need
  * to instantiated in DSP by invoking INIT_MODULE IPC, which is achieved by
@@ -313,12 +414,25 @@ skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe)
 		if (!skl_tplg_alloc_pipe_mcps(skl, mconfig))
 			return -ENOMEM;
 
+		if (mconfig->is_loadable && ctx->dsp->fw_ops.load_mod) {
+			ret = ctx->dsp->fw_ops.load_mod(ctx->dsp,
+				mconfig->id.module_id, mconfig->guid);
+			if (ret < 0)
+				return ret;
+		}
+
 		/*
 		 * apply fix/conversion to module params based on
 		 * FE/BE params
 		 */
 		skl_tplg_update_module_params(w, ctx);
-		ret = skl_init_module(ctx, mconfig, NULL);
+
+		skl_tplg_set_module_init_data(w);
+		ret = skl_init_module(ctx, mconfig);
+		if (ret < 0)
+			return ret;
+
+		ret = skl_tplg_set_module_params(w, ctx);
 		if (ret < 0)
 			return ret;
 	}
@@ -326,6 +440,24 @@ skl_tplg_init_pipe_modules(struct skl *skl, struct skl_pipe *pipe)
 	return 0;
 }
 
+static int skl_tplg_unload_pipe_modules(struct skl_sst *ctx,
+	 struct skl_pipe *pipe)
+{
+	struct skl_pipe_module *w_module = NULL;
+	struct skl_module_cfg *mconfig = NULL;
+
+	list_for_each_entry(w_module, &pipe->w_list, node) {
+		mconfig  = w_module->w->priv;
+
+		if (mconfig->is_loadable && ctx->dsp->fw_ops.unload_mod)
+			return ctx->dsp->fw_ops.unload_mod(ctx->dsp,
+						mconfig->id.module_id);
+	}
+
+	/* no modules to unload in this path, so return */
+	return 0;
+}
+
 /*
  * Mixer module represents a pipeline. So in the Pre-PMU event of mixer we
  * need create the pipeline. So we do following:
@@ -397,41 +529,24 @@ static int skl_tplg_mixer_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
-/*
- * A PGA represents a module in a pipeline. So in the Pre-PMU event of PGA
- * we need to do following:
- *   - Bind to sink pipeline
- *      Since the sink pipes can be running and we don't get mixer event on
- *      connect for already running mixer, we need to find the sink pipes
- *      here and bind to them. This way dynamic connect works.
- *   - Start sink pipeline, if not running
- *   - Then run current pipe
- */
-static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
-							struct skl *skl)
+static int skl_tplg_bind_sinks(struct snd_soc_dapm_widget *w,
+				struct skl *skl,
+				struct skl_module_cfg *src_mconfig)
 {
 	struct snd_soc_dapm_path *p;
-	struct skl_dapm_path_list *path_list;
-	struct snd_soc_dapm_widget *source, *sink;
-	struct skl_module_cfg *src_mconfig, *sink_mconfig;
+	struct snd_soc_dapm_widget *sink = NULL, *next_sink = NULL;
+	struct skl_module_cfg *sink_mconfig;
 	struct skl_sst *ctx = skl->skl_sst;
-	int ret = 0;
-
-	source = w;
-	src_mconfig = source->priv;
+	int ret;
 
-	/*
-	 * find which sink it is connected to, bind with the sink,
-	 * if sink is not started, start sink pipe first, then start
-	 * this pipe
-	 */
-	snd_soc_dapm_widget_for_each_source_path(w, p) {
+	snd_soc_dapm_widget_for_each_sink_path(w, p) {
 		if (!p->connect)
 			continue;
 
 		dev_dbg(ctx->dev, "%s: src widget=%s\n", __func__, w->name);
 		dev_dbg(ctx->dev, "%s: sink widget=%s\n", __func__, p->sink->name);
 
+		next_sink = p->sink;
 		/*
 		 * here we will check widgets in sink pipelines, so that
 		 * can be any widgets type and we are only interested if
@@ -441,7 +556,6 @@ static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
 					is_skl_dsp_widget_type(p->sink)) {
 
 			sink = p->sink;
-			src_mconfig = source->priv;
 			sink_mconfig = sink->priv;
 
 			/* Bind source to sink, mixin is always source */
@@ -451,32 +565,89 @@ static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
 
 			/* Start sinks pipe first */
 			if (sink_mconfig->pipe->state != SKL_PIPE_STARTED) {
-				ret = skl_run_pipe(ctx, sink_mconfig->pipe);
+				if (sink_mconfig->pipe->conn_type !=
+							SKL_PIPE_CONN_TYPE_FE)
+					ret = skl_run_pipe(ctx,
+							sink_mconfig->pipe);
 				if (ret)
 					return ret;
 			}
-
-			path_list = kzalloc(
-					sizeof(struct skl_dapm_path_list),
-					GFP_KERNEL);
-			if (path_list == NULL)
-				return -ENOMEM;
-
-			/* Add connected path to one global list */
-			path_list->dapm_path = p;
-			list_add_tail(&path_list->node, &skl->dapm_path_list);
-			break;
 		}
 	}
 
-	/* Start source pipe last after starting all sinks */
-	ret = skl_run_pipe(ctx, src_mconfig->pipe);
+	if (!sink)
+		return skl_tplg_bind_sinks(next_sink, skl, src_mconfig);
+
+	return 0;
+}
+
+/*
+ * A PGA represents a module in a pipeline. So in the Pre-PMU event of PGA
+ * we need to do following:
+ *   - Bind to sink pipeline
+ *      Since the sink pipes can be running and we don't get mixer event on
+ *      connect for already running mixer, we need to find the sink pipes
+ *      here and bind to them. This way dynamic connect works.
+ *   - Start sink pipeline, if not running
+ *   - Then run current pipe
+ */
+static int skl_tplg_pga_dapm_pre_pmu_event(struct snd_soc_dapm_widget *w,
+								struct skl *skl)
+{
+	struct skl_module_cfg *src_mconfig;
+	struct skl_sst *ctx = skl->skl_sst;
+	int ret = 0;
+
+	src_mconfig = w->priv;
+
+	/*
+	 * find which sink it is connected to, bind with the sink,
+	 * if sink is not started, start sink pipe first, then start
+	 * this pipe
+	 */
+	ret = skl_tplg_bind_sinks(w, skl, src_mconfig);
 	if (ret)
 		return ret;
 
+	/* Start source pipe last after starting all sinks */
+	if (src_mconfig->pipe->conn_type != SKL_PIPE_CONN_TYPE_FE)
+		return skl_run_pipe(ctx, src_mconfig->pipe);
+
 	return 0;
 }
 
+static struct snd_soc_dapm_widget *skl_get_src_dsp_widget(
+		struct snd_soc_dapm_widget *w, struct skl *skl)
+{
+	struct snd_soc_dapm_path *p;
+	struct snd_soc_dapm_widget *src_w = NULL;
+	struct skl_sst *ctx = skl->skl_sst;
+
+	snd_soc_dapm_widget_for_each_source_path(w, p) {
+		src_w = p->source;
+		if (!p->connect)
+			continue;
+
+		dev_dbg(ctx->dev, "sink widget=%s\n", w->name);
+		dev_dbg(ctx->dev, "src widget=%s\n", p->source->name);
+
+		/*
+		 * here we will check widgets in sink pipelines, so that can
+		 * be any widgets type and we are only interested if they are
+		 * ones used for SKL so check that first
+		 */
+		if ((p->source->priv != NULL) &&
+					is_skl_dsp_widget_type(p->source)) {
+			return p->source;
+		}
+	}
+
+	if (src_w != NULL)
+		return skl_get_src_dsp_widget(src_w, skl);
+
+	return NULL;
+}
+
 /*
  * in the Post-PMU event of mixer we need to do following:
  *   - Check if this pipe is running
@@ -490,7 +661,6 @@ static int skl_tplg_mixer_dapm_post_pmu_event(struct snd_soc_dapm_widget *w,
 							struct skl *skl)
 {
 	int ret = 0;
-	struct snd_soc_dapm_path *p;
 	struct snd_soc_dapm_widget *source, *sink;
 	struct skl_module_cfg *src_mconfig, *sink_mconfig;
 	struct skl_sst *ctx = skl->skl_sst;
@@ -504,39 +674,26 @@ static int skl_tplg_mixer_dapm_post_pmu_event(struct snd_soc_dapm_widget *w,
 	 * one more sink before this sink got connected, Since source is
 	 * started, bind this sink to source and start this pipe.
 	 */
-	snd_soc_dapm_widget_for_each_sink_path(w, p) {
-		if (!p->connect)
-			continue;
-
-		dev_dbg(ctx->dev, "sink widget=%s\n", w->name);
-		dev_dbg(ctx->dev, "src widget=%s\n", p->source->name);
-
-		/*
-		 * here we will check widgets in sink pipelines, so that
-		 * can be any widgets type and we are only interested if
-		 * they are ones used for SKL so check that first
-		 */
-		if ((p->source->priv != NULL) &&
-					is_skl_dsp_widget_type(p->source)) {
-			source = p->source;
+	source = skl_get_src_dsp_widget(w, skl);
+	if (source != NULL) {
 		src_mconfig = source->priv;
 		sink_mconfig = sink->priv;
 		src_pipe_started = 1;
 
 		/*
-			 * check pipe state, then no need to bind or start
-			 * the pipe
+		 * check pipe state, then no need to bind or start the
+		 * pipe
 		 */
 		if (src_mconfig->pipe->state != SKL_PIPE_STARTED)
 			src_pipe_started = 0;
 	}
-	}
 
 	if (src_pipe_started) {
 		ret = skl_bind_modules(ctx, src_mconfig, sink_mconfig);
 		if (ret)
 			return ret;
 
+		if (sink_mconfig->pipe->conn_type != SKL_PIPE_CONN_TYPE_FE)
 			ret = skl_run_pipe(ctx, sink_mconfig->pipe);
 	}
 
@@ -552,52 +709,35 @@ static int skl_tplg_mixer_dapm_post_pmu_event(struct snd_soc_dapm_widget *w,
 static int skl_tplg_mixer_dapm_pre_pmd_event(struct snd_soc_dapm_widget *w,
 							struct skl *skl)
 {
-	struct snd_soc_dapm_widget *source, *sink;
 	struct skl_module_cfg *src_mconfig, *sink_mconfig;
-	int ret = 0, path_found = 0;
-	struct skl_dapm_path_list *path_list, *tmp_list;
+	int ret = 0, i;
 	struct skl_sst *ctx = skl->skl_sst;
 
-	sink = w;
-	sink_mconfig = sink->priv;
+	sink_mconfig = w->priv;
 
 	/* Stop the pipe */
 	ret = skl_stop_pipe(ctx, sink_mconfig->pipe);
 	if (ret)
 		return ret;
 
+	for (i = 0; i < sink_mconfig->max_in_queue; i++) {
+		if (sink_mconfig->m_in_pin[i].pin_state == SKL_PIN_BIND_DONE) {
+			src_mconfig = sink_mconfig->m_in_pin[i].tgt_mcfg;
+			if (!src_mconfig)
+				continue;
 			/*
-	 * This list, dapm_path_list handling here does not need any locks
-	 * as we are under dapm lock while handling widget events.
-	 * List can be manipulated safely only under dapm widgets handler
-	 * routines
-	 */
-	list_for_each_entry_safe(path_list, tmp_list,
-				&skl->dapm_path_list, node) {
-		if (path_list->dapm_path->sink == sink) {
-			dev_dbg(ctx->dev, "Path found = %s\n",
-					path_list->dapm_path->name);
-			source = path_list->dapm_path->source;
-			src_mconfig = source->priv;
-			path_found = 1;
-
-			list_del(&path_list->node);
-			kfree(path_list);
-			break;
-		}
-	}
-
-	/*
-	 * If path_found == 1, that means pmd for source pipe has
-	 * not occurred, source is connected to some other sink.
-	 * so its responsibility of sink to unbind itself from source.
+			 * If path_found == 1, that means pmd for source
+			 * pipe has not occurred, source is connected to
+			 * some other sink. so its responsibility of sink
+			 * to unbind itself from source.
 			 */
-	if (path_found) {
 			ret = skl_stop_pipe(ctx, src_mconfig->pipe);
 			if (ret < 0)
 				return ret;
 
-		ret = skl_unbind_modules(ctx, src_mconfig, sink_mconfig);
+			ret = skl_unbind_modules(ctx,
+						src_mconfig, sink_mconfig);
+		}
 	}
 
 	return ret;
@@ -622,10 +762,12 @@ static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
 	int ret = 0;
 
 	skl_tplg_free_pipe_mcps(skl, mconfig);
+	skl_tplg_free_pipe_mem(skl, mconfig);
 
 	list_for_each_entry(w_module, &s_pipe->w_list, node) {
 		dst_module = w_module->w->priv;
 
+		skl_tplg_free_pipe_mcps(skl, dst_module);
 		if (src_module == NULL) {
 			src_module = dst_module;
 			continue;
@@ -639,9 +781,8 @@ static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
 	}
 
 	ret = skl_delete_pipe(ctx, mconfig->pipe);
-	skl_tplg_free_pipe_mem(skl, mconfig);
 
-	return ret;
+	return skl_tplg_unload_pipe_modules(ctx, s_pipe);
 }
 
 /*
@@ -653,45 +794,32 @@ static int skl_tplg_mixer_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
 static int skl_tplg_pga_dapm_post_pmd_event(struct snd_soc_dapm_widget *w,
 								struct skl *skl)
 {
-	struct snd_soc_dapm_widget *source, *sink;
 	struct skl_module_cfg *src_mconfig, *sink_mconfig;
-	int ret = 0, path_found = 0;
-	struct skl_dapm_path_list *path_list, *tmp_path_list;
+	int ret = 0, i;
 	struct skl_sst *ctx = skl->skl_sst;
 
-	source = w;
-	src_mconfig = source->priv;
+	src_mconfig = w->priv;
 
-	skl_tplg_free_pipe_mcps(skl, src_mconfig);
 	/* Stop the pipe since this is a mixin module */
 	ret = skl_stop_pipe(ctx, src_mconfig->pipe);
 	if (ret)
 		return ret;
 
-	list_for_each_entry_safe(path_list, tmp_path_list, &skl->dapm_path_list, node) {
-		if (path_list->dapm_path->source == source) {
-			dev_dbg(ctx->dev, "Path found = %s\n",
-					path_list->dapm_path->name);
-			sink = path_list->dapm_path->sink;
-			sink_mconfig = sink->priv;
-			path_found = 1;
-
-			list_del(&path_list->node);
-			kfree(path_list);
-			break;
-		}
-	}
-
+	for (i = 0; i < src_mconfig->max_out_queue; i++) {
+		if (src_mconfig->m_out_pin[i].pin_state == SKL_PIN_BIND_DONE) {
+			sink_mconfig = src_mconfig->m_out_pin[i].tgt_mcfg;
+			if (!sink_mconfig)
+				continue;
 			/*
-	 * This is a connector and if path is found that means
+			 * This is a connecter and if path is found that means
 			 * unbind between source and sink has not happened yet
 			 */
-	if (path_found) {
-		ret = skl_stop_pipe(ctx, src_mconfig->pipe);
+			ret = skl_stop_pipe(ctx, sink_mconfig->pipe);
 			if (ret < 0)
 				return ret;
-
-		ret = skl_unbind_modules(ctx, src_mconfig, sink_mconfig);
+			ret = skl_unbind_modules(ctx, src_mconfig,
+							sink_mconfig);
+		}
 	}
 
 	return ret;
@@ -774,6 +902,67 @@ static int skl_tplg_pga_event(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
+static int skl_tplg_tlv_control_get(struct snd_kcontrol *kcontrol,
+			unsigned int __user *data, unsigned int size)
+{
+	struct soc_bytes_ext *sb =
+			(struct soc_bytes_ext *)kcontrol->private_value;
+	struct skl_algo_data *bc = (struct skl_algo_data *)sb->dobj.private;
+	struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
+	struct skl_module_cfg *mconfig = w->priv;
+	struct skl *skl = get_skl_ctx(w->dapm->dev);
+
+	if (w->power)
+		skl_get_module_params(skl->skl_sst, (u32 *)bc->params,
+				      bc->max, bc->param_id, mconfig);
+
+	if (bc->params) {
+		if (copy_to_user(data, &bc->param_id, sizeof(u32)))
+			return -EFAULT;
+		if (copy_to_user(data + 1, &size, sizeof(u32)))
+			return -EFAULT;
+		if (copy_to_user(data + 2, bc->params, size))
+			return -EFAULT;
+	}
+
+	return 0;
+}
+
+#define SKL_PARAM_VENDOR_ID 0xff
+
+static int skl_tplg_tlv_control_set(struct snd_kcontrol *kcontrol,
+			const unsigned int __user *data, unsigned int size)
+{
+	struct snd_soc_dapm_widget *w = snd_soc_dapm_kcontrol_widget(kcontrol);
+	struct skl_module_cfg *mconfig = w->priv;
+	struct soc_bytes_ext *sb =
+			(struct soc_bytes_ext *)kcontrol->private_value;
+	struct skl_algo_data *ac = (struct skl_algo_data *)sb->dobj.private;
+	struct skl *skl = get_skl_ctx(w->dapm->dev);
+
+	if (ac->params) {
+		/*
+		 * if the param_is is of type Vendor, firmware expects actual
+		 * parameter id and size from the control.
+		 */
+		if (ac->param_id == SKL_PARAM_VENDOR_ID) {
+			if (copy_from_user(ac->params, data, size))
+				return -EFAULT;
+		} else {
+			if (copy_from_user(ac->params,
+					   data + 2 * sizeof(u32), size))
+				return -EFAULT;
+		}
+
+		if (w->power)
+			return skl_set_module_params(skl->skl_sst,
+						(u32 *)ac->params, ac->max,
+						ac->param_id, mconfig);
+	}
+
+	return 0;
+}
+
 /*
  * The FE params are passed by hw_params of the DAI.
  * On hw_params, the params are stored in Gateway module of the FE and we
@@ -790,9 +979,9 @@ int skl_tplg_update_pipe_params(struct device *dev,
 	memcpy(pipe->p_params, params, sizeof(*params));
 
 	if (params->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		format = &mconfig->in_fmt;
+		format = &mconfig->in_fmt[0];
 	else
-		format = &mconfig->out_fmt;
+		format = &mconfig->out_fmt[0];
 
 	/* set the hw_params */
 	format->s_freq = params->s_freq;
@@ -809,6 +998,7 @@ int skl_tplg_update_pipe_params(struct device *dev,
 		break;
 
 	case SKL_DEPTH_24BIT:
+	case SKL_DEPTH_32BIT:
 		format->bit_depth = SKL_DEPTH_32BIT;
 		break;
 
@@ -846,7 +1036,7 @@ skl_tplg_fe_get_cpr_module(struct snd_soc_dai *dai, int stream)
 		w = dai->playback_widget;
 		snd_soc_dapm_widget_for_each_sink_path(w, p) {
 			if (p->connect && p->sink->power &&
-					is_skl_dsp_widget_type(p->sink))
+					!is_skl_dsp_widget_type(p->sink))
 				continue;
 
 			if (p->sink->priv) {
@@ -859,7 +1049,7 @@ skl_tplg_fe_get_cpr_module(struct snd_soc_dai *dai, int stream)
 		w = dai->capture_widget;
 		snd_soc_dapm_widget_for_each_source_path(w, p) {
 			if (p->connect && p->source->power &&
-					is_skl_dsp_widget_type(p->source))
+					!is_skl_dsp_widget_type(p->source))
 				continue;
 
 			if (p->source->priv) {
@@ -920,6 +1110,9 @@ static int skl_tplg_be_fill_pipe_params(struct snd_soc_dai *dai,
 
 	memcpy(pipe->p_params, params, sizeof(*params));
 
+	if (link_type == NHLT_LINK_HDA)
+		return 0;
+
 	/* update the blob based on virtual bus_id*/
 	cfg = skl_get_ep_blob(skl, mconfig->vbus_id, link_type,
 					params->s_fmt, params->ch,
@@ -950,18 +1143,13 @@ static int skl_tplg_be_set_src_pipe_params(struct snd_soc_dai *dai,
 		if (p->connect && is_skl_dsp_widget_type(p->source) &&
 						p->source->priv) {
 
-			if (!p->source->power) {
-				ret = skl_tplg_be_fill_pipe_params(
-						dai, p->source->priv,
-						params);
+			ret = skl_tplg_be_fill_pipe_params(dai,
+						p->source->priv, params);
 			if (ret < 0)
 				return ret;
 		} else {
-				return -EBUSY;
-			}
-		} else {
-			ret = skl_tplg_be_set_src_pipe_params(
-						dai, p->source,	params);
+			ret = skl_tplg_be_set_src_pipe_params(dai,
+						p->source, params);
 			if (ret < 0)
 				return ret;
 		}
@@ -980,15 +1168,10 @@ static int skl_tplg_be_set_sink_pipe_params(struct snd_soc_dai *dai,
 		if (p->connect && is_skl_dsp_widget_type(p->sink) &&
 						p->sink->priv) {
 
-			if (!p->sink->power) {
-				ret = skl_tplg_be_fill_pipe_params(
-						dai, p->sink->priv, params);
+			ret = skl_tplg_be_fill_pipe_params(dai,
+						p->sink->priv, params);
 			if (ret < 0)
 				return ret;
-			} else {
-				return -EBUSY;
-			}
-
 		} else {
 			ret = skl_tplg_be_set_sink_pipe_params(
 						dai, p->sink, params);
@@ -1030,6 +1213,11 @@ static const struct snd_soc_tplg_widget_events skl_tplg_widget_ops[] = {
 	{SKL_PGA_EVENT, skl_tplg_pga_event},
 };
 
+static const struct snd_soc_tplg_bytes_ext_ops skl_tlv_ops[] = {
+	{SKL_CONTROL_TYPE_BYTE_TLV, skl_tplg_tlv_control_get,
+					skl_tplg_tlv_control_set},
+};
+
 /*
  * The topology binary passes the pin info for a module so initialize the pin
  * info passed into module instance
@@ -1045,6 +1233,7 @@ static void skl_fill_module_pin_info(struct skl_dfw_module_pin *dfw_pin,
 		m_pin[i].id.instance_id = dfw_pin[i].instance_id;
 		m_pin[i].in_use = false;
 		m_pin[i].is_dynamic = is_dynamic;
+		m_pin[i].pin_state = SKL_PIN_UNBIND;
 	}
 }
 
@@ -1092,6 +1281,24 @@ static struct skl_pipe *skl_tplg_add_pipe(struct device *dev,
 	return ppl->pipe;
 }
 
+static void skl_tplg_fill_fmt(struct skl_module_fmt *dst_fmt,
+				struct skl_dfw_module_fmt *src_fmt,
+				int pins)
+{
+	int i;
+
+	for (i = 0; i < pins; i++) {
+		dst_fmt[i].channels  = src_fmt[i].channels;
+		dst_fmt[i].s_freq = src_fmt[i].freq;
+		dst_fmt[i].bit_depth = src_fmt[i].bit_depth;
+		dst_fmt[i].valid_bit_depth = src_fmt[i].valid_bit_depth;
+		dst_fmt[i].ch_cfg = src_fmt[i].ch_cfg;
+		dst_fmt[i].ch_map = src_fmt[i].ch_map;
+		dst_fmt[i].interleaving_style = src_fmt[i].interleaving_style;
+		dst_fmt[i].sample_type = src_fmt[i].sample_type;
+	}
+}
+
 /*
  * Topology core widget load callback
  *
@@ -1130,22 +1337,16 @@ static int skl_tplg_widget_load(struct snd_soc_component *cmpnt,
 	mconfig->max_in_queue = dfw_config->max_in_queue;
 	mconfig->max_out_queue = dfw_config->max_out_queue;
 	mconfig->is_loadable = dfw_config->is_loadable;
-	mconfig->in_fmt.channels = dfw_config->in_fmt.channels;
-	mconfig->in_fmt.s_freq = dfw_config->in_fmt.freq;
-	mconfig->in_fmt.bit_depth = dfw_config->in_fmt.bit_depth;
-	mconfig->in_fmt.valid_bit_depth =
-				dfw_config->in_fmt.valid_bit_depth;
-	mconfig->in_fmt.ch_cfg = dfw_config->in_fmt.ch_cfg;
-	mconfig->out_fmt.channels = dfw_config->out_fmt.channels;
-	mconfig->out_fmt.s_freq = dfw_config->out_fmt.freq;
-	mconfig->out_fmt.bit_depth = dfw_config->out_fmt.bit_depth;
-	mconfig->out_fmt.valid_bit_depth =
-				dfw_config->out_fmt.valid_bit_depth;
-	mconfig->out_fmt.ch_cfg = dfw_config->out_fmt.ch_cfg;
+	skl_tplg_fill_fmt(mconfig->in_fmt, dfw_config->in_fmt,
+						MODULE_MAX_IN_PINS);
+	skl_tplg_fill_fmt(mconfig->out_fmt, dfw_config->out_fmt,
+						MODULE_MAX_OUT_PINS);
+
 	mconfig->params_fixup = dfw_config->params_fixup;
 	mconfig->converter = dfw_config->converter;
 	mconfig->m_type = dfw_config->module_type;
 	mconfig->vbus_id = dfw_config->vbus_id;
+	mconfig->mem_pages = dfw_config->mem_pages;
 
 	pipe = skl_tplg_add_pipe(bus->dev, skl, &dfw_config->pipe);
 	if (pipe)
@@ -1156,8 +1357,11 @@ static int skl_tplg_widget_load(struct snd_soc_component *cmpnt,
 	mconfig->time_slot = dfw_config->time_slot;
 	mconfig->formats_config.caps_size = dfw_config->caps.caps_size;
 
-	mconfig->m_in_pin = devm_kzalloc(bus->dev,
-				(mconfig->max_in_queue) *
+	if (dfw_config->is_loadable)
+		memcpy(mconfig->guid, dfw_config->uuid,
+					ARRAY_SIZE(dfw_config->uuid));
+
+	mconfig->m_in_pin = devm_kzalloc(bus->dev, (mconfig->max_in_queue) *
 						sizeof(*mconfig->m_in_pin),
 						GFP_KERNEL);
 	if (!mconfig->m_in_pin)
@@ -1189,6 +1393,8 @@ static int skl_tplg_widget_load(struct snd_soc_component *cmpnt,
 
 	memcpy(mconfig->formats_config.caps, dfw_config->caps.caps,
 						 dfw_config->caps.caps_size);
+	mconfig->formats_config.param_id = dfw_config->caps.param_id;
+	mconfig->formats_config.set_params = dfw_config->caps.set_params;
 
 bind_event:
 	if (tplg_w->event_type == 0) {
@@ -1209,8 +1415,70 @@ static int skl_tplg_widget_load(struct snd_soc_component *cmpnt,
 	return 0;
 }
 
+static int skl_init_algo_data(struct device *dev, struct soc_bytes_ext *be,
+					struct snd_soc_tplg_bytes_control *bc)
+{
+	struct skl_algo_data *ac;
+	struct skl_dfw_algo_data *dfw_ac =
+				(struct skl_dfw_algo_data *)bc->priv.data;
+
+	ac = devm_kzalloc(dev, sizeof(*ac), GFP_KERNEL);
+	if (!ac)
+		return -ENOMEM;
+
+	/* Fill private data */
+	ac->max = dfw_ac->max;
+	ac->param_id = dfw_ac->param_id;
+	ac->set_params = dfw_ac->set_params;
+
+	if (ac->max) {
+		ac->params = (char *) devm_kzalloc(dev, ac->max, GFP_KERNEL);
+		if (!ac->params)
+			return -ENOMEM;
+
+		if (dfw_ac->params)
+			memcpy(ac->params, dfw_ac->params, ac->max);
+	}
+
+	be->dobj.private  = ac;
+	return 0;
+}
+
+static int skl_tplg_control_load(struct snd_soc_component *cmpnt,
+				struct snd_kcontrol_new *kctl,
+				struct snd_soc_tplg_ctl_hdr *hdr)
+{
+	struct soc_bytes_ext *sb;
+	struct snd_soc_tplg_bytes_control *tplg_bc;
+	struct hdac_ext_bus *ebus  = snd_soc_component_get_drvdata(cmpnt);
+	struct hdac_bus *bus = ebus_to_hbus(ebus);
+
+	switch (hdr->ops.info) {
+	case SND_SOC_TPLG_CTL_BYTES:
+		tplg_bc = container_of(hdr,
+				struct snd_soc_tplg_bytes_control, hdr);
+		if (kctl->access & SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK) {
+			sb = (struct soc_bytes_ext *)kctl->private_value;
+			if (tplg_bc->priv.size)
+				return skl_init_algo_data(
+						bus->dev, sb, tplg_bc);
+		}
+		break;
+
+	default:
+		dev_warn(bus->dev, "Control load not supported %d:%d:%d\n",
+			hdr->ops.get, hdr->ops.put, hdr->ops.info);
+		break;
+	}
+
+	return 0;
+}
+
 static struct snd_soc_tplg_ops skl_tplg_ops  = {
 	.widget_load = skl_tplg_widget_load,
+	.control_load = skl_tplg_control_load,
+	.bytes_ext_ops = skl_tlv_ops,
+	.bytes_ext_ops_count = ARRAY_SIZE(skl_tlv_ops),
 };
 
 /* This will be read from topology manifest, currently defined here */

sound/soc/intel/skylake/skl-topology.h

@@ -36,6 +36,9 @@
 /* Maximum number of coefficients up down mixer module */
 #define UP_DOWN_MIXER_MAX_COEFF		6
 
+#define MODULE_MAX_IN_PINS	8
+#define MODULE_MAX_OUT_PINS	8
+
 enum skl_channel_index {
 	SKL_CHANNEL_LEFT = 0,
 	SKL_CHANNEL_RIGHT = 1,
@@ -55,12 +58,6 @@ enum skl_bitdepth {
 	SKL_DEPTH_INVALID
 };
 
-enum skl_interleaving {
-	/* [s1_ch1...s1_chN,...,sM_ch1...sM_chN] */
-	SKL_INTERLEAVING_PER_CHANNEL = 0,
-	/* [s1_ch1...sM_ch1,...,s1_chN...sM_chN] */
-	SKL_INTERLEAVING_PER_SAMPLE = 1,
-};
 
 enum skl_s_freq {
 	SKL_FS_8000 = 8000,
@@ -143,6 +140,16 @@ struct skl_up_down_mixer_cfg {
 	s32 coeff[UP_DOWN_MIXER_MAX_COEFF];
 } __packed;
 
+struct skl_algo_cfg {
+	struct skl_base_cfg  base_cfg;
+	char params[0];
+} __packed;
+
+struct skl_base_outfmt_cfg {
+	struct skl_base_cfg base_cfg;
+	struct skl_audio_data_format out_fmt;
+} __packed;
+
 enum skl_dma_type {
 	SKL_DMA_HDA_HOST_OUTPUT_CLASS = 0,
 	SKL_DMA_HDA_HOST_INPUT_CLASS = 1,
@@ -178,21 +185,34 @@ struct skl_module_fmt {
 	u32 bit_depth;
 	u32 valid_bit_depth;
 	u32 ch_cfg;
+	u32 interleaving_style;
+	u32 sample_type;
+	u32 ch_map;
 };
 
+struct skl_module_cfg;
+
 struct skl_module_inst_id {
 	u32 module_id;
 	u32 instance_id;
 };
 
+enum skl_module_pin_state {
+	SKL_PIN_UNBIND = 0,
+	SKL_PIN_BIND_DONE = 1,
+};
+
 struct skl_module_pin {
 	struct skl_module_inst_id id;
-	u8 pin_index;
 	bool is_dynamic;
 	bool in_use;
+	enum skl_module_pin_state pin_state;
+	struct skl_module_cfg *tgt_mcfg;
 };
 
 struct skl_specific_cfg {
+	u32 set_params;
+	u32 param_id;
 	u32 caps_size;
 	u32 *caps;
 };
@@ -238,9 +258,13 @@ enum skl_module_state {
 };
 
 struct skl_module_cfg {
+	char guid[SKL_UUID_STR_SZ];
 	struct skl_module_inst_id id;
-	struct skl_module_fmt in_fmt;
-	struct skl_module_fmt out_fmt;
+	u8 domain;
+	bool homogenous_inputs;
+	bool homogenous_outputs;
+	struct skl_module_fmt in_fmt[MODULE_MAX_IN_PINS];
+	struct skl_module_fmt out_fmt[MODULE_MAX_OUT_PINS];
 	u8 max_in_queue;
 	u8 max_out_queue;
 	u8 in_queue_mask;
@@ -258,6 +282,7 @@ struct skl_module_cfg {
 	u32 params_fixup;
 	u32 converter;
 	u32 vbus_id;
+	u32 mem_pages;
 	struct skl_module_pin *m_in_pin;
 	struct skl_module_pin *m_out_pin;
 	enum skl_module_type m_type;
@@ -267,13 +292,15 @@ struct skl_module_cfg {
 	struct skl_specific_cfg formats_config;
 };
 
-struct skl_pipeline {
-	struct skl_pipe *pipe;
-	struct list_head node;
+struct skl_algo_data {
+	u32 param_id;
+	u32 set_params;
+	u32 max;
+	char *params;
 };
 
-struct skl_dapm_path_list {
-	struct snd_soc_dapm_path *dapm_path;
+struct skl_pipeline {
+	struct skl_pipe *pipe;
 	struct list_head node;
 };
 
@@ -305,8 +332,7 @@ int skl_delete_pipe(struct skl_sst *ctx, struct skl_pipe *pipe);
 
 int skl_stop_pipe(struct skl_sst *ctx, struct skl_pipe *pipe);
 
-int skl_init_module(struct skl_sst *ctx, struct skl_module_cfg *module_config,
-	char *param);
+int skl_init_module(struct skl_sst *ctx, struct skl_module_cfg *module_config);
 
 int skl_bind_modules(struct skl_sst *ctx, struct skl_module_cfg
 	*src_module, struct skl_module_cfg *dst_module);
@@ -314,5 +340,10 @@ int skl_bind_modules(struct skl_sst *ctx, struct skl_module_cfg
 int skl_unbind_modules(struct skl_sst *ctx, struct skl_module_cfg
 	*src_module, struct skl_module_cfg *dst_module);
 
+int skl_set_module_params(struct skl_sst *ctx, u32 *params, int size,
+			u32 param_id, struct skl_module_cfg *mcfg);
+int skl_get_module_params(struct skl_sst *ctx, u32 *params, int size,
+			  u32 param_id, struct skl_module_cfg *mcfg);
+
 enum skl_bitdepth skl_get_bit_depth(int params);
 #endif

sound/soc/intel/skylake/skl-tplg-interface.h

@@ -23,15 +23,13 @@
  * Default types range from 0~12. type can range from 0 to 0xff
  * SST types start at higher to avoid any overlapping in future
  */
-#define SOC_CONTROL_TYPE_HDA_SST_ALGO_PARAMS	0x100
-#define SOC_CONTROL_TYPE_HDA_SST_MUX		0x101
-#define SOC_CONTROL_TYPE_HDA_SST_MIX		0x101
-#define SOC_CONTROL_TYPE_HDA_SST_BYTE		0x103
+#define SKL_CONTROL_TYPE_BYTE_TLV	0x100
 
 #define HDA_SST_CFG_MAX	900 /* size of copier cfg*/
 #define MAX_IN_QUEUE 8
 #define MAX_OUT_QUEUE 8
 
+#define SKL_UUID_STR_SZ 40
 /* Event types goes here */
 /* Reserve event type 0 for no event handlers */
 enum skl_event_types {
@@ -72,6 +70,7 @@ enum skl_ch_cfg {
 	SKL_CH_CFG_DUAL_MONO = 9,
 	SKL_CH_CFG_I2S_DUAL_STEREO_0 = 10,
 	SKL_CH_CFG_I2S_DUAL_STEREO_1 = 11,
+	SKL_CH_CFG_4_CHANNEL = 12,
 	SKL_CH_CFG_INVALID
 };
 
@@ -79,7 +78,9 @@ enum skl_module_type {
 	SKL_MODULE_TYPE_MIXER = 0,
 	SKL_MODULE_TYPE_COPIER,
 	SKL_MODULE_TYPE_UPDWMIX,
-	SKL_MODULE_TYPE_SRCINT
+	SKL_MODULE_TYPE_SRCINT,
+	SKL_MODULE_TYPE_ALGO,
+	SKL_MODULE_TYPE_BASE_OUTFMT
 };
 
 enum skl_core_affinity {
@@ -110,6 +111,42 @@ enum skl_dev_type {
 	SKL_DEVICE_NONE
 };
 
+/**
+ * enum skl_interleaving - interleaving style
+ *
+ * @SKL_INTERLEAVING_PER_CHANNEL: [s1_ch1...s1_chN,...,sM_ch1...sM_chN]
+ * @SKL_INTERLEAVING_PER_SAMPLE: [s1_ch1...sM_ch1,...,s1_chN...sM_chN]
+ */
+enum skl_interleaving {
+	SKL_INTERLEAVING_PER_CHANNEL = 0,
+	SKL_INTERLEAVING_PER_SAMPLE = 1,
+};
+
+enum skl_sample_type {
+	SKL_SAMPLE_TYPE_INT_MSB = 0,
+	SKL_SAMPLE_TYPE_INT_LSB = 1,
+	SKL_SAMPLE_TYPE_INT_SIGNED = 2,
+	SKL_SAMPLE_TYPE_INT_UNSIGNED = 3,
+	SKL_SAMPLE_TYPE_FLOAT = 4
+};
+
+enum module_pin_type {
+	/* All pins of the module takes same PCM inputs or outputs
+	* e.g. mixout
+	*/
+	SKL_PIN_TYPE_HOMOGENEOUS,
+	/* All pins of the module takes different PCM inputs or outputs
+	* e.g mux
+	*/
+	SKL_PIN_TYPE_HETEROGENEOUS,
+};
+
+enum skl_module_param_type {
+	SKL_PARAM_DEFAULT = 0,
+	SKL_PARAM_INIT,
+	SKL_PARAM_SET
+};
+
 struct skl_dfw_module_pin {
 	u16 module_id;
 	u16 instance_id;
@@ -121,9 +158,15 @@ struct skl_dfw_module_fmt {
 	u32 bit_depth;
 	u32 valid_bit_depth;
 	u32 ch_cfg;
+	u32 interleaving_style;
+	u32 sample_type;
+	u32 ch_map;
 } __packed;
 
 struct skl_dfw_module_caps {
+	u32 set_params:2;
+	u32 rsvd:30;
+	u32 param_id;
 	u32 caps_size;
 	u32 caps[HDA_SST_CFG_MAX];
 };
@@ -131,41 +174,57 @@ struct skl_dfw_module_caps {
 struct skl_dfw_pipe {
 	u8 pipe_id;
 	u8 pipe_priority;
-	u16 conn_type;
-	u32 memory_pages;
+	u16 conn_type:4;
+	u16 rsvd:4;
+	u16 memory_pages:8;
 } __packed;
 
 struct skl_dfw_module {
+	char uuid[SKL_UUID_STR_SZ];
+
 	u16 module_id;
 	u16 instance_id;
 	u32 max_mcps;
-	u8 core_id;
-	u8 max_in_queue;
-	u8 max_out_queue;
-	u8 is_loadable;
-	u8 conn_type;
-	u8 dev_type;
-	u8 hw_conn_type;
-	u8 time_slot;
+	u32 mem_pages;
 	u32 obs;
 	u32 ibs;
-	u32 params_fixup;
-	u32 converter;
-	u32 module_type;
 	u32 vbus_id;
-	u8 is_dynamic_in_pin;
-	u8 is_dynamic_out_pin;
+
+	u32 max_in_queue:8;
+	u32 max_out_queue:8;
+	u32 time_slot:8;
+	u32 core_id:4;
+	u32 rsvd1:4;
+
+	u32 module_type:8;
+	u32 conn_type:4;
+	u32 dev_type:4;
+	u32 hw_conn_type:4;
+	u32 rsvd2:12;
+
+	u32 params_fixup:8;
+	u32 converter:8;
+	u32 input_pin_type:1;
+	u32 output_pin_type:1;
+	u32 is_dynamic_in_pin:1;
+	u32 is_dynamic_out_pin:1;
+	u32 is_loadable:1;
+	u32 rsvd3:11;
+
 	struct skl_dfw_pipe pipe;
-	struct skl_dfw_module_fmt in_fmt;
-	struct skl_dfw_module_fmt out_fmt;
+	struct skl_dfw_module_fmt in_fmt[MAX_IN_QUEUE];
+	struct skl_dfw_module_fmt out_fmt[MAX_OUT_QUEUE];
 	struct skl_dfw_module_pin in_pin[MAX_IN_QUEUE];
 	struct skl_dfw_module_pin out_pin[MAX_OUT_QUEUE];
 	struct skl_dfw_module_caps caps;
 } __packed;
 
 struct skl_dfw_algo_data {
+	u32 set_params:2;
+	u32 rsvd:30;
+	u32 param_id;
 	u32 max;
-	char *params;
+	char params[0];
 } __packed;
 
 #endif

sound/soc/intel/skylake/skl.c

@@ -26,6 +26,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/platform_device.h>
 #include <sound/pcm.h>
+#include "../common/sst-acpi.h"
 #include "skl.h"
 
 /*
@@ -129,6 +130,37 @@ static int skl_acquire_irq(struct hdac_ext_bus *ebus, int do_disconnect)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int _skl_suspend(struct hdac_ext_bus *ebus)
+{
+	struct skl *skl = ebus_to_skl(ebus);
+	struct hdac_bus *bus = ebus_to_hbus(ebus);
+	int ret;
+
+	snd_hdac_ext_bus_link_power_down_all(ebus);
+
+	ret = skl_suspend_dsp(skl);
+	if (ret < 0)
+		return ret;
+
+	snd_hdac_bus_stop_chip(bus);
+	snd_hdac_bus_enter_link_reset(bus);
+
+	return 0;
+}
+
+static int _skl_resume(struct hdac_ext_bus *ebus)
+{
+	struct skl *skl = ebus_to_skl(ebus);
+	struct hdac_bus *bus = ebus_to_hbus(ebus);
+
+	skl_init_pci(skl);
+	snd_hdac_bus_init_chip(bus, true);
+
+	return skl_resume_dsp(skl);
+}
+#endif
+
 #ifdef CONFIG_PM_SLEEP
 /*
  * power management
@@ -137,26 +169,40 @@ static int skl_suspend(struct device *dev)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
 	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
-
-	snd_hdac_bus_stop_chip(bus);
-	snd_hdac_bus_enter_link_reset(bus);
+	struct skl *skl  = ebus_to_skl(ebus);
 
+	/*
+	 * Do not suspend if streams which are marked ignore suspend are
+	 * running, we need to save the state for these and continue
+	 */
+	if (skl->supend_active) {
+		pci_save_state(pci);
+		pci_disable_device(pci);
 		return 0;
+	} else {
+		return _skl_suspend(ebus);
+	}
 }
 
 static int skl_resume(struct device *dev)
 {
 	struct pci_dev *pci = to_pci_dev(dev);
 	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
-	struct hdac_bus *bus = ebus_to_hbus(ebus);
-	struct skl *hda = ebus_to_skl(ebus);
-
-	skl_init_pci(hda);
+	struct skl *skl  = ebus_to_skl(ebus);
+	int ret;
 
-	snd_hdac_bus_init_chip(bus, 1);
+	/*
+	 * resume only when we are not in suspend active, otherwise need to
+	 * restore the device
+	 */
+	if (skl->supend_active) {
+		pci_restore_state(pci);
+		ret = pci_enable_device(pci);
+	} else {
+		ret = _skl_resume(ebus);
+	}
 
-	return 0;
+	return ret;
 }
 #endif /* CONFIG_PM_SLEEP */
 
@@ -166,24 +212,10 @@ static int skl_runtime_suspend(struct device *dev)
 	struct pci_dev *pci = to_pci_dev(dev);
 	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
 	struct hdac_bus *bus = ebus_to_hbus(ebus);
-	struct skl *skl = ebus_to_skl(ebus);
-	int ret;
 
 	dev_dbg(bus->dev, "in %s\n", __func__);
 
-	/* enable controller wake up event */
-	snd_hdac_chip_updatew(bus, WAKEEN, 0, STATESTS_INT_MASK);
-
-	snd_hdac_ext_bus_link_power_down_all(ebus);
-
-	ret = skl_suspend_dsp(skl);
-	if (ret < 0)
-		return ret;
-
-	snd_hdac_bus_stop_chip(bus);
-	snd_hdac_bus_enter_link_reset(bus);
-
-	return 0;
+	return _skl_suspend(ebus);
 }
 
 static int skl_runtime_resume(struct device *dev)
@@ -191,20 +223,10 @@ static int skl_runtime_resume(struct device *dev)
 	struct pci_dev *pci = to_pci_dev(dev);
 	struct hdac_ext_bus *ebus = pci_get_drvdata(pci);
 	struct hdac_bus *bus = ebus_to_hbus(ebus);
-	struct skl *skl = ebus_to_skl(ebus);
-	int status;
 
 	dev_dbg(bus->dev, "in %s\n", __func__);
 
-	/* Read STATESTS before controller reset */
-	status = snd_hdac_chip_readw(bus, STATESTS);
-
-	skl_init_pci(skl);
-	snd_hdac_bus_init_chip(bus, true);
-	/* disable controller Wake Up event */
-	snd_hdac_chip_updatew(bus, WAKEEN, STATESTS_INT_MASK, 0);
-
-	return skl_resume_dsp(skl);
+	return _skl_resume(ebus);
 }
 #endif /* CONFIG_PM */
 
@@ -241,6 +263,43 @@ static int skl_free(struct hdac_ext_bus *ebus)
 	return 0;
 }
 
+static int skl_machine_device_register(struct skl *skl, void *driver_data)
+{
+	struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
+	struct platform_device *pdev;
+	struct sst_acpi_mach *mach = driver_data;
+	int ret;
+
+	mach = sst_acpi_find_machine(mach);
+	if (mach == NULL) {
+		dev_err(bus->dev, "No matching machine driver found\n");
+		return -ENODEV;
+	}
+	skl->fw_name = mach->fw_filename;
+
+	pdev = platform_device_alloc(mach->drv_name, -1);
+	if (pdev == NULL) {
+		dev_err(bus->dev, "platform device alloc failed\n");
+		return -EIO;
+	}
+
+	ret = platform_device_add(pdev);
+	if (ret) {
+		dev_err(bus->dev, "failed to add machine device\n");
+		platform_device_put(pdev);
+		return -EIO;
+	}
+	skl->i2s_dev = pdev;
+
+	return 0;
+}
+
+static void skl_machine_device_unregister(struct skl *skl)
+{
+	if (skl->i2s_dev)
+		platform_device_unregister(skl->i2s_dev);
+}
+
 static int skl_dmic_device_register(struct skl *skl)
 {
 	struct hdac_bus *bus = ebus_to_hbus(&skl->ebus);
@@ -434,8 +493,7 @@ static int skl_first_init(struct hdac_ext_bus *ebus)
 
 	/* codec detection */
 	if (!bus->codec_mask) {
-		dev_err(bus->dev, "no codecs found!\n");
-		return -ENODEV;
+		dev_info(bus->dev, "no hda codecs found!\n");
 	}
 
 	return 0;
@@ -470,10 +528,15 @@ static int skl_probe(struct pci_dev *pci,
 
 	/* check if dsp is there */
 	if (ebus->ppcap) {
+		err = skl_machine_device_register(skl,
+				  (void *)pci_id->driver_data);
+		if (err < 0)
+			goto out_free;
+
 		err = skl_init_dsp(skl);
 		if (err < 0) {
 			dev_dbg(bus->dev, "error failed to register dsp\n");
-			goto out_free;
+			goto out_mach_free;
 		}
 	}
 	if (ebus->mlcap)
@@ -508,6 +571,8 @@ static int skl_probe(struct pci_dev *pci,
 	skl_dmic_device_unregister(skl);
 out_dsp_free:
 	skl_free_dsp(skl);
+out_mach_free:
+	skl_machine_device_unregister(skl);
 out_free:
 	skl->init_failed = 1;
 	skl_free(ebus);
@@ -525,15 +590,26 @@ static void skl_remove(struct pci_dev *pci)
 	pci_dev_put(pci);
 	skl_platform_unregister(&pci->dev);
 	skl_free_dsp(skl);
+	skl_machine_device_unregister(skl);
 	skl_dmic_device_unregister(skl);
 	skl_free(ebus);
 	dev_set_drvdata(&pci->dev, NULL);
 }
 
+static struct sst_acpi_mach sst_skl_devdata[] = {
+	{ "INT343A", "skl_alc286s_i2s", "intel/dsp_fw_release.bin", NULL, NULL, NULL },
+	{ "INT343B", "skl_nau88l25_ssm4567_i2s", "intel/dsp_fw_release.bin",
+				NULL, NULL, NULL },
+	{ "MX98357A", "skl_nau88l25_max98357a_i2s", "intel/dsp_fw_release.bin",
+				NULL, NULL, NULL },
+	{}
+};
+
 /* PCI IDs */
 static const struct pci_device_id skl_ids[] = {
 	/* Sunrise Point-LP */
-	{ PCI_DEVICE(0x8086, 0x9d70), 0},
+	{ PCI_DEVICE(0x8086, 0x9d70),
+		.driver_data = (unsigned long)&sst_skl_devdata},
 	{ 0, }
 };
 MODULE_DEVICE_TABLE(pci, skl_ids);

sound/soc/intel/skylake/skl.h

@@ -61,13 +61,17 @@ struct skl {
 
 	unsigned int init_failed:1; /* delayed init failed */
 	struct platform_device *dmic_dev;
+	struct platform_device *i2s_dev;
 
 	void *nhlt; /* nhlt ptr */
 	struct skl_sst *skl_sst; /* sst skl ctx */
 
 	struct skl_dsp_resource resource;
 	struct list_head ppl_list;
-	struct list_head dapm_path_list;
+
+	const char *fw_name;
+
+	int supend_active;
 };
 
 #define skl_to_ebus(s)	(&(s)->ebus)