Merge series "ASoC: Add common modules support for ACP hw block" from Ajit...

Merge series "ASoC: Add common modules support for ACP hw block" from Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>:

changes since v3:
- rebase and fixes merge conflict.
- Fixed kernel autobot warning.

Ajit Kumar Pandey (8):
  ASoC: amd: Add common framework to support I2S on ACP SOC
  ASoC: amd: acp: Add I2S support on Renoir platform
  ASoC: amd: acp: Add callback for machine driver on ACP
  ASoC: amd: acp: Add generic machine driver support for ACP cards
  ASoC: amd: acp: Add legacy sound card support for Chrome audio
  ASoC: amd: acp: Add SOF audio support on Chrome board
  ASoC: amd: acp: Add support for Maxim amplifier codec
  ASoC: amd: acp: Add support for RT5682-VS codec

 sound/soc/amd/Kconfig                |   2 +
 sound/soc/amd/Makefile               |   1 +
 sound/soc/amd/acp/Kconfig            |  51 +++
 sound/soc/amd/acp/Makefile           |  26 ++
 sound/soc/amd/acp/acp-i2s.c          | 340 +++++++++++++++
 sound/soc/amd/acp/acp-legacy-mach.c  | 104 +++++
 sound/soc/amd/acp/acp-mach-common.c  | 600 +++++++++++++++++++++++++++
 sound/soc/amd/acp/acp-mach.h         |  57 +++
 sound/soc/amd/acp/acp-platform.c     | 315 ++++++++++++++
 sound/soc/amd/acp/acp-renoir.c       | 144 +++++++
 sound/soc/amd/acp/acp-sof-mach.c     | 131 ++++++
 sound/soc/amd/acp/amd.h              | 146 +++++++
 sound/soc/amd/acp/chip_offset_byte.h |  76 ++++
 13 files changed, 1993 insertions(+)
 create mode 100644 sound/soc/amd/acp/Kconfig
 create mode 100644 sound/soc/amd/acp/Makefile
 create mode 100644 sound/soc/amd/acp/acp-i2s.c
 create mode 100644 sound/soc/amd/acp/acp-legacy-mach.c
 create mode 100644 sound/soc/amd/acp/acp-mach-common.c
 create mode 100644 sound/soc/amd/acp/acp-mach.h
 create mode 100644 sound/soc/amd/acp/acp-platform.c
 create mode 100644 sound/soc/amd/acp/acp-renoir.c
 create mode 100644 sound/soc/amd/acp/acp-sof-mach.c
 create mode 100644 sound/soc/amd/acp/amd.h
 create mode 100644 sound/soc/amd/acp/chip_offset_byte.h

--
2.25.1

sound/soc/amd/Kconfig

@@ -95,3 +95,5 @@ config SND_SOC_AMD_YC_MACH
 	  DMIC can be connected directly to ACP IP.
 	  Say m if you have such a device.
 	  If unsure select "N".
+
+source "sound/soc/amd/acp/Kconfig"

sound/soc/amd/Makefile

@@ -12,3 +12,4 @@ obj-$(CONFIG_SND_SOC_AMD_RV_RT5682_MACH) += snd-soc-acp-rt5682-mach.o
 obj-$(CONFIG_SND_SOC_AMD_RENOIR) += renoir/
 obj-$(CONFIG_SND_SOC_AMD_ACP5x) += vangogh/
 obj-$(CONFIG_SND_SOC_AMD_ACP6x) += yc/
+obj-$(CONFIG_SND_SOC_AMD_ACP_COMMON) += acp/

sound/soc/amd/acp/Kconfig

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+# This file is provided under a dual BSD/GPLv2 license. When using or
+# redistributing this file, you may do so under either license.
+#
+# Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+#
+
+config SND_SOC_AMD_ACP_COMMON
+	tristate "AMD Audio ACP Common support"
+	select SND_AMD_ACP_CONFIG
+	help
+	  This option enables common modules for Audio-Coprocessor i.e. ACP
+	  IP block on AMD platforms.
+
+config SND_SOC_AMD_ACP_I2S
+	tristate
+
+config SND_SOC_AMD_ACP_PCM
+	tristate
+
+config SND_AMD_ASOC_RENOIR
+	tristate "AMD ACP ASOC Renoir Support"
+	select SND_SOC_AMD_ACP_PCM
+	select SND_SOC_AMD_ACP_I2S
+	depends on X86 && PCI
+	help
+	  This option enables Renoir I2S support on AMD platform.
+
+config SND_SOC_AMD_MACH_COMMON
+	tristate
+	select CLK_FIXED_FCH
+	select SND_SOC_RT5682_I2C
+	select SND_SOC_DMIC
+	select SND_SOC_RT1019
+	select SND_SOC_MAX98357A
+	select SND_SOC_RT5682S
+	depends on X86 && PCI && I2C
+	help
+	  This option enables common Machine driver module for ACP.
+
+config SND_SOC_AMD_LEGACY_MACH
+	tristate "AMD Legacy Machine Driver Support"
+	select SND_SOC_AMD_MACH_COMMON
+	help
+	  This option enables legacy sound card support for ACP audio.
+
+config SND_SOC_AMD_SOF_MACH
+	tristate "AMD SOF Machine Driver Support"
+	select SND_SOC_AMD_MACH_COMMON
+	help
+	  This option enables SOF sound card support for ACP audio.

sound/soc/amd/acp/Makefile

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+# This file is provided under a dual BSD/GPLv2 license. When using or
+# redistributing this file, you may do so under either license.
+#
+# Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+
+#common acp driver
+snd-acp-pcm-objs     := acp-platform.o
+snd-acp-i2s-objs     := acp-i2s.o
+
+#platform specific driver
+snd-acp-renoir-objs     := acp-renoir.o
+
+#machine specific driver
+snd-acp-mach-objs     := acp-mach-common.o
+snd-acp-legacy-mach-objs     := acp-legacy-mach.o
+snd-acp-sof-mach-objs     := acp-sof-mach.o
+
+obj-$(CONFIG_SND_SOC_AMD_ACP_PCM) += snd-acp-pcm.o
+obj-$(CONFIG_SND_SOC_AMD_ACP_I2S) += snd-acp-i2s.o
+
+obj-$(CONFIG_SND_AMD_ASOC_RENOIR) += snd-acp-renoir.o
+
+obj-$(CONFIG_SND_SOC_AMD_MACH_COMMON) += snd-acp-mach.o
+obj-$(CONFIG_SND_SOC_AMD_LEGACY_MACH) += snd-acp-legacy-mach.o
+obj-$(CONFIG_SND_SOC_AMD_SOF_MACH) += snd-acp-sof-mach.o

sound/soc/amd/acp/acp-i2s.c

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc.
+//
+// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+//
+
+/*
+ * Generic Hardware interface for ACP Audio I2S controller
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <linux/dma-mapping.h>
+
+#include "amd.h"
+
+#define DRV_NAME "acp_i2s_playcap"
+
+static int acp_i2s_hwparams(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *params,
+			    struct snd_soc_dai *dai)
+{
+	struct device *dev = dai->component->dev;
+	struct acp_dev_data *adata;
+	u32 val;
+	u32 xfer_resolution;
+	u32 reg_val;
+
+	adata = snd_soc_dai_get_drvdata(dai);
+
+	/* These values are as per Hardware Spec */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_U8:
+	case SNDRV_PCM_FORMAT_S8:
+		xfer_resolution = 0x0;
+		break;
+	case SNDRV_PCM_FORMAT_S16_LE:
+		xfer_resolution = 0x02;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		xfer_resolution = 0x04;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		xfer_resolution = 0x05;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		switch (dai->driver->id) {
+		case I2S_BT_INSTANCE:
+			reg_val = ACP_BTTDM_ITER;
+			break;
+		case I2S_SP_INSTANCE:
+			reg_val = ACP_I2STDM_ITER;
+			break;
+		default:
+			dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
+			return -EINVAL;
+		}
+	} else {
+		switch (dai->driver->id) {
+		case I2S_BT_INSTANCE:
+			reg_val = ACP_BTTDM_IRER;
+			break;
+		case I2S_SP_INSTANCE:
+			reg_val = ACP_I2STDM_IRER;
+			break;
+		default:
+			dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
+			return -EINVAL;
+		}
+	}
+
+	val = readl(adata->acp_base + reg_val);
+	val &= ~ACP3x_ITER_IRER_SAMP_LEN_MASK;
+	val = val | (xfer_resolution  << 3);
+	writel(val, adata->acp_base + reg_val);
+
+	return 0;
+}
+
+static int acp_i2s_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai)
+{
+	struct acp_stream *stream = substream->runtime->private_data;
+	struct device *dev = dai->component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	u32 val, period_bytes, reg_val, ier_val, water_val, buf_size, buf_reg;
+
+	period_bytes = frames_to_bytes(substream->runtime, substream->runtime->period_size);
+	buf_size = frames_to_bytes(substream->runtime, substream->runtime->buffer_size);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		stream->bytescount = acp_get_byte_count(adata, stream->dai_id, substream->stream);
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			switch (dai->driver->id) {
+			case I2S_BT_INSTANCE:
+				water_val = ACP_BT_TX_INTR_WATERMARK_SIZE;
+				reg_val = ACP_BTTDM_ITER;
+				ier_val = ACP_BTTDM_IER;
+				buf_reg = ACP_BT_TX_RINGBUFSIZE;
+				break;
+			case I2S_SP_INSTANCE:
+				water_val = ACP_I2S_TX_INTR_WATERMARK_SIZE;
+				reg_val = ACP_I2STDM_ITER;
+				ier_val = ACP_I2STDM_IER;
+				buf_reg = ACP_I2S_TX_RINGBUFSIZE;
+				break;
+			default:
+				dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
+				return -EINVAL;
+			}
+		} else {
+			switch (dai->driver->id) {
+			case I2S_BT_INSTANCE:
+				water_val = ACP_BT_RX_INTR_WATERMARK_SIZE;
+				reg_val = ACP_BTTDM_IRER;
+				ier_val = ACP_BTTDM_IER;
+				buf_reg = ACP_BT_RX_RINGBUFSIZE;
+				break;
+			case I2S_SP_INSTANCE:
+				water_val = ACP_I2S_RX_INTR_WATERMARK_SIZE;
+				reg_val = ACP_I2STDM_IRER;
+				ier_val = ACP_I2STDM_IER;
+				buf_reg = ACP_I2S_RX_RINGBUFSIZE;
+				break;
+			default:
+				dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
+				return -EINVAL;
+			}
+		}
+		writel(period_bytes, adata->acp_base + water_val);
+		writel(buf_size, adata->acp_base + buf_reg);
+		val = readl(adata->acp_base + reg_val);
+		val = val | BIT(0);
+		writel(val, adata->acp_base + reg_val);
+		writel(1, adata->acp_base + ier_val);
+		return 0;
+	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+			switch (dai->driver->id) {
+			case I2S_BT_INSTANCE:
+				reg_val = ACP_BTTDM_ITER;
+				break;
+			case I2S_SP_INSTANCE:
+				reg_val = ACP_I2STDM_ITER;
+				break;
+			default:
+				dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
+				return -EINVAL;
+			}
+
+		} else {
+			switch (dai->driver->id) {
+			case I2S_BT_INSTANCE:
+				reg_val = ACP_BTTDM_IRER;
+				break;
+			case I2S_SP_INSTANCE:
+				reg_val = ACP_I2STDM_IRER;
+				break;
+			default:
+				dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
+				return -EINVAL;
+			}
+		}
+		val = readl(adata->acp_base + reg_val);
+		val = val & ~BIT(0);
+		writel(val, adata->acp_base + reg_val);
+
+		if (!(readl(adata->acp_base + ACP_BTTDM_ITER) & BIT(0)) &&
+		    !(readl(adata->acp_base + ACP_BTTDM_IRER) & BIT(0)))
+			writel(0, adata->acp_base + ACP_BTTDM_IER);
+		if (!(readl(adata->acp_base + ACP_I2STDM_ITER) & BIT(0)) &&
+		    !(readl(adata->acp_base + ACP_I2STDM_IRER) & BIT(0)))
+			writel(0, adata->acp_base + ACP_I2STDM_IER);
+		return 0;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int acp_i2s_prepare(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	struct device *dev = dai->component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_stream *stream = substream->runtime->private_data;
+	u32 reg_dma_size = 0, reg_fifo_size = 0, reg_fifo_addr = 0;
+	u32 phy_addr = 0, acp_fifo_addr = 0, ext_int_ctrl;
+	unsigned int dir = substream->stream;
+
+	switch (dai->driver->id) {
+	case I2S_SP_INSTANCE:
+		if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
+			reg_dma_size = ACP_I2S_TX_DMA_SIZE;
+			acp_fifo_addr = ACP_SRAM_PTE_OFFSET +
+						SP_PB_FIFO_ADDR_OFFSET;
+			reg_fifo_addr =	ACP_I2S_TX_FIFOADDR;
+			reg_fifo_size = ACP_I2S_TX_FIFOSIZE;
+
+			phy_addr = I2S_SP_TX_MEM_WINDOW_START + stream->reg_offset;
+			writel(phy_addr, adata->acp_base + ACP_I2S_TX_RINGBUFADDR);
+		} else {
+			reg_dma_size = ACP_I2S_RX_DMA_SIZE;
+			acp_fifo_addr = ACP_SRAM_PTE_OFFSET +
+						SP_CAPT_FIFO_ADDR_OFFSET;
+			reg_fifo_addr = ACP_I2S_RX_FIFOADDR;
+			reg_fifo_size = ACP_I2S_RX_FIFOSIZE;
+			phy_addr = I2S_SP_RX_MEM_WINDOW_START + stream->reg_offset;
+			writel(phy_addr, adata->acp_base + ACP_I2S_RX_RINGBUFADDR);
+		}
+		break;
+	case I2S_BT_INSTANCE:
+		if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
+			reg_dma_size = ACP_BT_TX_DMA_SIZE;
+			acp_fifo_addr = ACP_SRAM_PTE_OFFSET +
+						BT_PB_FIFO_ADDR_OFFSET;
+			reg_fifo_addr = ACP_BT_TX_FIFOADDR;
+			reg_fifo_size = ACP_BT_TX_FIFOSIZE;
+
+			phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset;
+			writel(phy_addr, adata->acp_base + ACP_BT_TX_RINGBUFADDR);
+		} else {
+			reg_dma_size = ACP_BT_RX_DMA_SIZE;
+			acp_fifo_addr = ACP_SRAM_PTE_OFFSET +
+						BT_CAPT_FIFO_ADDR_OFFSET;
+			reg_fifo_addr = ACP_BT_RX_FIFOADDR;
+			reg_fifo_size = ACP_BT_RX_FIFOSIZE;
+
+			phy_addr = I2S_BT_TX_MEM_WINDOW_START + stream->reg_offset;
+			writel(phy_addr, adata->acp_base + ACP_BT_RX_RINGBUFADDR);
+		}
+		break;
+	default:
+		dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
+		return -EINVAL;
+	}
+
+	writel(DMA_SIZE, adata->acp_base + reg_dma_size);
+	writel(acp_fifo_addr, adata->acp_base + reg_fifo_addr);
+	writel(FIFO_SIZE, adata->acp_base + reg_fifo_size);
+
+	ext_int_ctrl = readl(adata->acp_base + ACP_EXTERNAL_INTR_CNTL);
+	ext_int_ctrl |= BIT(I2S_RX_THRESHOLD) | BIT(BT_RX_THRESHOLD)
+			| BIT(I2S_TX_THRESHOLD) | BIT(BT_TX_THRESHOLD);
+
+	writel(ext_int_ctrl, adata->acp_base + ACP_EXTERNAL_INTR_CNTL);
+
+	return 0;
+}
+
+static int acp_i2s_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	struct acp_stream *stream = substream->runtime->private_data;
+	struct device *dev = dai->component->dev;
+	unsigned int dir = substream->stream;
+	unsigned int irq_bit = 0;
+
+	switch (dai->driver->id) {
+	case I2S_SP_INSTANCE:
+		if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
+			irq_bit = BIT(I2S_TX_THRESHOLD);
+			stream->pte_offset = ACP_SRAM_SP_PB_PTE_OFFSET;
+			stream->fifo_offset = SP_PB_FIFO_ADDR_OFFSET;
+		} else {
+			irq_bit = BIT(I2S_RX_THRESHOLD);
+			stream->pte_offset = ACP_SRAM_SP_CP_PTE_OFFSET;
+			stream->fifo_offset = SP_CAPT_FIFO_ADDR_OFFSET;
+		}
+		break;
+	case I2S_BT_INSTANCE:
+		if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
+			irq_bit = BIT(BT_TX_THRESHOLD);
+			stream->pte_offset = ACP_SRAM_BT_PB_PTE_OFFSET;
+			stream->fifo_offset = BT_PB_FIFO_ADDR_OFFSET;
+		} else {
+			irq_bit = BIT(BT_RX_THRESHOLD);
+			stream->pte_offset = ACP_SRAM_BT_CP_PTE_OFFSET;
+			stream->fifo_offset = BT_CAPT_FIFO_ADDR_OFFSET;
+		}
+		break;
+	default:
+		dev_err(dev, "Invalid dai id %x\n", dai->driver->id);
+		return -EINVAL;
+	}
+
+	/* Save runtime dai configuration in stream */
+	stream->id = dai->driver->id + dir;
+	stream->dai_id = dai->driver->id;
+	stream->irq_bit = irq_bit;
+
+	return 0;
+}
+
+const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops = {
+	.startup = acp_i2s_startup,
+	.hw_params = acp_i2s_hwparams,
+	.prepare = acp_i2s_prepare,
+	.trigger = acp_i2s_trigger,
+};
+EXPORT_SYMBOL_NS_GPL(asoc_acp_cpu_dai_ops, SND_SOC_ACP_COMMON);
+
+int asoc_acp_i2s_probe(struct snd_soc_dai *dai)
+{
+	struct device *dev = dai->component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	unsigned int val;
+
+	if (!adata->acp_base) {
+		dev_err(dev, "I2S base is NULL\n");
+		return -EINVAL;
+	}
+
+	val = readl(adata->acp_base + ACP_I2S_PIN_CONFIG);
+	if (val != I2S_MODE) {
+		dev_err(dev, "I2S Mode not supported val %x\n", val);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(asoc_acp_i2s_probe, SND_SOC_ACP_COMMON);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS(DRV_NAME);

sound/soc/amd/acp/acp-legacy-mach.c

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc.
+//
+// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+//
+
+/*
+ * Machine Driver Legacy Support for ACP HW block
+ */
+
+#include <sound/core.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-dapm.h>
+#include <linux/module.h>
+
+#include "acp-mach.h"
+
+static struct acp_card_drvdata rt5682_rt1019_data = {
+	.hs_cpu_id = I2S_SP,
+	.amp_cpu_id = I2S_SP,
+	.dmic_cpu_id = NONE,
+	.hs_codec_id = RT5682,
+	.amp_codec_id = RT1019,
+	.dmic_codec_id = NONE,
+};
+
+static const struct snd_kcontrol_new acp_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Spk"),
+	SOC_DAPM_PIN_SWITCH("Left Spk"),
+	SOC_DAPM_PIN_SWITCH("Right Spk"),
+
+};
+
+static const struct snd_soc_dapm_widget acp_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_SPK("Spk", NULL),
+	SND_SOC_DAPM_SPK("Left Spk", NULL),
+	SND_SOC_DAPM_SPK("Right Spk", NULL),
+};
+
+static int acp_asoc_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = NULL;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	if (!pdev->id_entry)
+		return -EINVAL;
+
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
+	card->dev = dev;
+	card->owner = THIS_MODULE;
+	card->name = pdev->id_entry->name;
+	card->dapm_widgets = acp_widgets;
+	card->num_dapm_widgets = ARRAY_SIZE(acp_widgets);
+	card->controls = acp_controls;
+	card->num_controls = ARRAY_SIZE(acp_controls);
+	card->drvdata = (struct acp_card_drvdata *)pdev->id_entry->driver_data;
+
+	acp_legacy_dai_links_create(card);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret) {
+		dev_err(&pdev->dev,
+				"devm_snd_soc_register_card(%s) failed: %d\n",
+				card->name, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct platform_device_id board_ids[] = {
+	{
+		.name = "rn_rt5682_rt1019",
+		.driver_data = (kernel_ulong_t)&rt5682_rt1019_data,
+	},
+	{ }
+};
+static struct platform_driver acp_asoc_audio = {
+	.driver = {
+		.name = "acp_mach",
+	},
+	.probe = acp_asoc_probe,
+	.id_table = board_ids,
+};
+
+module_platform_driver(acp_asoc_audio);
+
+MODULE_IMPORT_NS(SND_SOC_AMD_MACH);
+MODULE_DESCRIPTION("ACP chrome audio support");
+MODULE_ALIAS("platform:rn_rt5682_rt1019");
+MODULE_LICENSE("GPL v2");

sound/soc/amd/acp/acp-mach.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+ */
+#ifndef __ACP_MACH_H
+#define __ACP_MACH_H
+
+#include <sound/core.h>
+#include <sound/jack.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-dapm.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <sound/soc.h>
+
+enum be_id {
+	HEADSET_BE_ID = 0,
+	AMP_BE_ID,
+	DMIC_BE_ID,
+};
+
+enum cpu_endpoints {
+	NONE = 0,
+	I2S_SP,
+	I2S_BT,
+	DMIC,
+};
+
+enum codec_endpoints {
+	DUMMY = 0,
+	RT5682,
+	RT1019,
+	MAX98360A,
+	RT5682S,
+};
+
+struct acp_card_drvdata {
+	unsigned int hs_cpu_id;
+	unsigned int amp_cpu_id;
+	unsigned int dmic_cpu_id;
+	unsigned int hs_codec_id;
+	unsigned int amp_codec_id;
+	unsigned int dmic_codec_id;
+	unsigned int dai_fmt;
+	struct clk *wclk;
+	struct clk *bclk;
+};
+
+int acp_sofdsp_dai_links_create(struct snd_soc_card *card);
+int acp_legacy_dai_links_create(struct snd_soc_card *card);
+
+#endif

sound/soc/amd/acp/acp-platform.c

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc.
+//
+// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+
+/*
+ * Generic interface for ACP audio blck PCM component
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <linux/pm_runtime.h>
+#include <linux/dma-mapping.h>
+
+#include "amd.h"
+
+#define DRV_NAME "acp_i2s_dma"
+
+static const struct snd_pcm_hardware acp_pcm_hardware_playback = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_BATCH |
+		SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE |  SNDRV_PCM_FMTBIT_S8 |
+		   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+	.channels_min = 2,
+	.channels_max = 8,
+	.rates = SNDRV_PCM_RATE_8000_96000,
+	.rate_min = 8000,
+	.rate_max = 96000,
+	.buffer_bytes_max = PLAYBACK_MAX_NUM_PERIODS * PLAYBACK_MAX_PERIOD_SIZE,
+	.period_bytes_min = PLAYBACK_MIN_PERIOD_SIZE,
+	.period_bytes_max = PLAYBACK_MAX_PERIOD_SIZE,
+	.periods_min = PLAYBACK_MIN_NUM_PERIODS,
+	.periods_max = PLAYBACK_MAX_NUM_PERIODS,
+};
+
+static const struct snd_pcm_hardware acp_pcm_hardware_capture = {
+	.info = SNDRV_PCM_INFO_INTERLEAVED |
+		SNDRV_PCM_INFO_BLOCK_TRANSFER |
+		SNDRV_PCM_INFO_BATCH |
+		SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+		SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME,
+	.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+		   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S24_LE |
+		   SNDRV_PCM_FMTBIT_S32_LE,
+	.channels_min = 2,
+	.channels_max = 2,
+	.rates = SNDRV_PCM_RATE_8000_48000,
+	.rate_min = 8000,
+	.rate_max = 48000,
+	.buffer_bytes_max = CAPTURE_MAX_NUM_PERIODS * CAPTURE_MAX_PERIOD_SIZE,
+	.period_bytes_min = CAPTURE_MIN_PERIOD_SIZE,
+	.period_bytes_max = CAPTURE_MAX_PERIOD_SIZE,
+	.periods_min = CAPTURE_MIN_NUM_PERIODS,
+	.periods_max = CAPTURE_MAX_NUM_PERIODS,
+};
+
+int acp_machine_select(struct acp_dev_data *adata)
+{
+	struct snd_soc_acpi_mach *mach;
+	int size;
+
+	size = sizeof(*adata->machines);
+	mach = snd_soc_acpi_find_machine(adata->machines);
+	if (!mach) {
+		dev_err(adata->dev, "warning: No matching ASoC machine driver found\n");
+		return -EINVAL;
+	}
+
+	adata->mach_dev = platform_device_register_data(adata->dev, mach->drv_name,
+							PLATFORM_DEVID_NONE, mach, size);
+	if (!adata->mach_dev)
+		dev_warn(adata->dev, "Unable to register Machine device\n");
+
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(acp_machine_select, SND_SOC_ACP_COMMON);
+
+static irqreturn_t i2s_irq_handler(int irq, void *data)
+{
+	struct acp_dev_data *adata = data;
+	struct acp_stream *stream;
+	u16 i2s_flag = 0;
+	u32 val, i;
+
+	if (!adata)
+		return IRQ_NONE;
+
+	val = readl(adata->acp_base + ACP_EXTERNAL_INTR_STAT);
+
+	for (i = 0; i < ACP_MAX_STREAM; i++) {
+		stream = adata->stream[i];
+		if (stream && (val & stream->irq_bit)) {
+			writel(stream->irq_bit, adata->acp_base + ACP_EXTERNAL_INTR_STAT);
+			snd_pcm_period_elapsed(stream->substream);
+			i2s_flag = 1;
+			break;
+		}
+	}
+
+	if (i2s_flag)
+		return IRQ_HANDLED;
+
+	return IRQ_NONE;
+}
+
+static void config_pte_for_stream(struct acp_dev_data *adata, struct acp_stream *stream)
+{
+	u32 pte_reg, pte_size, reg_val;
+
+	/* Use ATU base Group5 */
+	pte_reg = ACPAXI2AXI_ATU_BASE_ADDR_GRP_5;
+	pte_size =  ACPAXI2AXI_ATU_PAGE_SIZE_GRP_5;
+	stream->reg_offset = 0x02000000;
+
+	/* Group Enable */
+	reg_val = ACP_SRAM_PTE_OFFSET;
+	writel(reg_val | BIT(31), adata->acp_base + pte_reg);
+	writel(PAGE_SIZE_4K_ENABLE,  adata->acp_base + pte_size);
+}
+
+static void config_acp_dma(struct acp_dev_data *adata, int cpu_id, int size)
+{
+	struct acp_stream *stream = adata->stream[cpu_id];
+	struct snd_pcm_substream *substream = stream->substream;
+	dma_addr_t addr = substream->dma_buffer.addr;
+	int num_pages = (PAGE_ALIGN(size) >> PAGE_SHIFT);
+	u32 low, high, val;
+	u16 page_idx;
+
+	val = stream->pte_offset;
+
+	for (page_idx = 0; page_idx < num_pages; page_idx++) {
+		/* Load the low address of page int ACP SRAM through SRBM */
+		low = lower_32_bits(addr);
+		high = upper_32_bits(addr);
+		writel(low, adata->acp_base + ACP_SCRATCH_REG_0 + val);
+		high |= BIT(31);
+		writel(high, adata->acp_base + ACP_SCRATCH_REG_0 + val + 4);
+
+		/* Move to next physically contiguous page */
+		val += 8;
+		addr += PAGE_SIZE;
+	}
+}
+
+static int acp_dma_open(struct snd_soc_component *component, struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	struct device *dev = component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_stream *stream;
+	int stream_id = cpu_dai->driver->id * 2 + substream->stream;
+	int ret;
+
+	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+	if (!stream)
+		return -ENOMEM;
+
+	stream->substream = substream;
+	adata->stream[stream_id] = stream;
+
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		runtime->hw = acp_pcm_hardware_playback;
+	else
+		runtime->hw = acp_pcm_hardware_capture;
+
+	ret = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS);
+	if (ret < 0) {
+		dev_err(component->dev, "set integer constraint failed\n");
+		kfree(stream);
+		return ret;
+	}
+	runtime->private_data = stream;
+
+	writel(1, adata->acp_base + ACP_EXTERNAL_INTR_ENB);
+
+	return ret;
+}
+
+static int acp_dma_hw_params(struct snd_soc_component *component,
+			     struct snd_pcm_substream *substream,
+			     struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+	struct acp_dev_data *adata = snd_soc_component_get_drvdata(component);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+	struct acp_stream *stream = substream->runtime->private_data;
+	int stream_id = cpu_dai->driver->id * 2 + substream->stream;
+	u64 size = params_buffer_bytes(params);
+
+	/* Configure ACP DMA block with params */
+	config_pte_for_stream(adata, stream);
+	config_acp_dma(adata, stream_id, size);
+
+	return 0;
+}
+
+static snd_pcm_uframes_t acp_dma_pointer(struct snd_soc_component *component,
+					 struct snd_pcm_substream *substream)
+{
+	struct device *dev = component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_stream *stream = substream->runtime->private_data;
+	u32 pos, buffersize;
+	u64 bytescount;
+
+	buffersize = frames_to_bytes(substream->runtime,
+				     substream->runtime->buffer_size);
+
+	bytescount = acp_get_byte_count(adata, stream->dai_id, substream->stream);
+
+	if (bytescount > stream->bytescount)
+		bytescount -= stream->bytescount;
+
+	pos = do_div(bytescount, buffersize);
+
+	return bytes_to_frames(substream->runtime, pos);
+}
+
+static int acp_dma_new(struct snd_soc_component *component,
+		       struct snd_soc_pcm_runtime *rtd)
+{
+	struct device *parent = component->dev->parent;
+
+	snd_pcm_set_managed_buffer_all(rtd->pcm, SNDRV_DMA_TYPE_DEV,
+				       parent, MIN_BUFFER, MAX_BUFFER);
+	return 0;
+}
+
+static int acp_dma_mmap(struct snd_soc_component *component,
+			struct snd_pcm_substream *substream,
+			struct vm_area_struct *vma)
+{
+	return snd_pcm_lib_default_mmap(substream, vma);
+}
+
+static int acp_dma_close(struct snd_soc_component *component,
+			 struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *soc_runtime = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(soc_runtime, 0);
+	struct device *dev = component->dev;
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct acp_stream *stream;
+	int stream_id = cpu_dai->driver->id * 2 + substream->stream;
+
+	stream = adata->stream[stream_id];
+	kfree(stream);
+	adata->stream[stream_id] = NULL;
+
+	return 0;
+}
+
+static const struct snd_soc_component_driver acp_pcm_component = {
+	.name		= DRV_NAME,
+	.open		= acp_dma_open,
+	.close		= acp_dma_close,
+	.hw_params	= acp_dma_hw_params,
+	.pointer	= acp_dma_pointer,
+	.mmap		= acp_dma_mmap,
+	.pcm_construct	= acp_dma_new,
+};
+
+int acp_platform_register(struct device *dev)
+{
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+	struct snd_soc_dai_driver;
+	unsigned int status;
+
+	status = devm_request_irq(dev, adata->i2s_irq, i2s_irq_handler,
+				  IRQF_SHARED, "ACP_I2S_IRQ", adata);
+	if (status) {
+		dev_err(dev, "ACP I2S IRQ request failed\n");
+		return status;
+	}
+
+	status = devm_snd_soc_register_component(dev, &acp_pcm_component,
+						 adata->dai_driver,
+						 adata->num_dai);
+	if (status) {
+		dev_err(dev, "Fail to register acp i2s component\n");
+		return status;
+	}
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(acp_platform_register, SND_SOC_ACP_COMMON);
+
+int acp_platform_unregister(struct device *dev)
+{
+	struct acp_dev_data *adata = dev_get_drvdata(dev);
+
+	if (adata->mach_dev)
+		platform_device_unregister(adata->mach_dev);
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(acp_platform_unregister, SND_SOC_ACP_COMMON);
+
+MODULE_DESCRIPTION("AMD ACP PCM Driver");
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS(DRV_NAME);

sound/soc/amd/acp/acp-renoir.c

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc.
+//
+// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+//
+
+/*
+ * Hardware interface for Renoir ACP block
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <linux/dma-mapping.h>
+
+#include "amd.h"
+
+#define DRV_NAME "acp_asoc_renoir"
+
+static struct snd_soc_dai_driver acp_renoir_dai[] = {
+{
+	.name = "acp-i2s-sp",
+	.id = I2S_SP_INSTANCE,
+	.playback = {
+		.stream_name = "I2S SP Playback",
+		.rates = SNDRV_PCM_RATE_8000_96000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
+		.channels_min = 2,
+		.channels_max = 8,
+		.rate_min = 8000,
+		.rate_max = 96000,
+	},
+	.capture = {
+		.stream_name = "I2S SP Capture",
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
+		.channels_min = 2,
+		.channels_max = 2,
+		.rate_min = 8000,
+		.rate_max = 48000,
+	},
+	.ops = &asoc_acp_cpu_dai_ops,
+	.probe = &asoc_acp_i2s_probe,
+},
+{
+	.name = "acp-i2s-bt",
+	.id = I2S_BT_INSTANCE,
+	.playback = {
+		.stream_name = "I2S BT Playback",
+		.rates = SNDRV_PCM_RATE_8000_96000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
+		.channels_min = 2,
+		.channels_max = 8,
+		.rate_min = 8000,
+		.rate_max = 96000,
+	},
+	.capture = {
+		.stream_name = "I2S BT Capture",
+		.rates = SNDRV_PCM_RATE_8000_48000,
+		.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S8 |
+			   SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S32_LE,
+		.channels_min = 2,
+		.channels_max = 2,
+		.rate_min = 8000,
+		.rate_max = 48000,
+	},
+	.ops = &asoc_acp_cpu_dai_ops,
+	.probe = &asoc_acp_i2s_probe,
+},
+};
+
+static int renoir_audio_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct acp_dev_data *adata;
+	struct resource *res;
+
+	adata = devm_kzalloc(dev, sizeof(struct acp_dev_data), GFP_KERNEL);
+	if (!adata)
+		return -ENOMEM;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "acp_mem");
+	if (!res) {
+		dev_err(&pdev->dev, "IORESOURCE_MEM FAILED\n");
+		return -ENODEV;
+	}
+
+	adata->acp_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!adata->acp_base)
+		return -ENOMEM;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "acp_dai_irq");
+	if (!res) {
+		dev_err(&pdev->dev, "IORESOURCE_IRQ FAILED\n");
+		return -ENODEV;
+	}
+
+	adata->i2s_irq = res->start;
+	adata->dev = dev;
+	adata->dai_driver = acp_renoir_dai;
+	adata->num_dai = ARRAY_SIZE(acp_renoir_dai);
+
+	adata->machines = snd_soc_acpi_amd_acp_machines;
+	acp_machine_select(adata);
+
+	dev_set_drvdata(dev, adata);
+	acp_platform_register(dev);
+
+	return 0;
+}
+
+static int renoir_audio_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+
+	acp_platform_unregister(dev);
+	return 0;
+}
+
+static struct platform_driver renoir_driver = {
+	.probe = renoir_audio_probe,
+	.remove = renoir_audio_remove,
+	.driver = {
+		.name = "acp_asoc_renoir",
+	},
+};
+
+module_platform_driver(renoir_driver);
+
+MODULE_DESCRIPTION("AMD ACP Renoir Driver");
+MODULE_IMPORT_NS(SND_SOC_ACP_COMMON);
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_ALIAS("platform:" DRV_NAME);

sound/soc/amd/acp/acp-sof-mach.c

+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// This file is provided under a dual BSD/GPLv2 license. When using or
+// redistributing this file, you may do so under either license.
+//
+// Copyright(c) 2021 Advanced Micro Devices, Inc.
+//
+// Authors: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+//
+
+/*
+ * SOF Machine Driver Support for ACP HW block
+ */
+
+#include <sound/core.h>
+#include <sound/pcm_params.h>
+#include <sound/soc-acpi.h>
+#include <sound/soc-dapm.h>
+#include <linux/module.h>
+
+#include "acp-mach.h"
+
+static struct acp_card_drvdata sof_rt5682_rt1019_data = {
+	.hs_cpu_id = I2S_SP,
+	.amp_cpu_id = I2S_SP,
+	.dmic_cpu_id = DMIC,
+	.hs_codec_id = RT5682,
+	.amp_codec_id = RT1019,
+	.dmic_codec_id = DMIC,
+};
+
+static struct acp_card_drvdata sof_rt5682_max_data = {
+	.hs_cpu_id = I2S_SP,
+	.amp_cpu_id = I2S_SP,
+	.dmic_cpu_id = DMIC,
+	.hs_codec_id = RT5682,
+	.amp_codec_id = MAX98360A,
+	.dmic_codec_id = DMIC,
+};
+
+static struct acp_card_drvdata sof_rt5682s_max_data = {
+	.hs_cpu_id = I2S_SP,
+	.amp_cpu_id = I2S_SP,
+	.dmic_cpu_id = DMIC,
+	.hs_codec_id = RT5682S,
+	.amp_codec_id = MAX98360A,
+	.dmic_codec_id = DMIC,
+};
+
+static const struct snd_kcontrol_new acp_controls[] = {
+	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
+	SOC_DAPM_PIN_SWITCH("Headset Mic"),
+	SOC_DAPM_PIN_SWITCH("Spk"),
+	SOC_DAPM_PIN_SWITCH("Left Spk"),
+	SOC_DAPM_PIN_SWITCH("Right Spk"),
+};
+
+static const struct snd_soc_dapm_widget acp_widgets[] = {
+	SND_SOC_DAPM_HP("Headphone Jack", NULL),
+	SND_SOC_DAPM_MIC("Headset Mic", NULL),
+	SND_SOC_DAPM_SPK("Spk", NULL),
+	SND_SOC_DAPM_SPK("Left Spk", NULL),
+	SND_SOC_DAPM_SPK("Right Spk", NULL),
+};
+
+static int acp_sof_probe(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = NULL;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	if (!pdev->id_entry)
+		return -EINVAL;
+
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
+	card->dev = dev;
+	card->owner = THIS_MODULE;
+	card->name = pdev->id_entry->name;
+	card->dapm_widgets = acp_widgets;
+	card->num_dapm_widgets = ARRAY_SIZE(acp_widgets);
+	card->controls = acp_controls;
+	card->num_controls = ARRAY_SIZE(acp_controls);
+	card->drvdata = (struct acp_card_drvdata *)pdev->id_entry->driver_data;
+
+	acp_sofdsp_dai_links_create(card);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
+	if (ret) {
+		dev_err(&pdev->dev,
+				"devm_snd_soc_register_card(%s) failed: %d\n",
+				card->name, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct platform_device_id board_ids[] = {
+	{
+		.name = "rt5682-rt1019",
+		.driver_data = (kernel_ulong_t)&sof_rt5682_rt1019_data
+	},
+	{
+		.name = "rt5682-max",
+		.driver_data = (kernel_ulong_t)&sof_rt5682_max_data
+	},
+	{
+		.name = "rt5682s-max",
+		.driver_data = (kernel_ulong_t)&sof_rt5682s_max_data
+	},
+	{ }
+};
+static struct platform_driver acp_asoc_audio = {
+	.driver = {
+		.name = "sof_mach",
+	},
+	.probe = acp_sof_probe,
+	.id_table = board_ids,
+};
+
+module_platform_driver(acp_asoc_audio);
+
+MODULE_IMPORT_NS(SND_SOC_AMD_MACH);
+MODULE_DESCRIPTION("ACP chrome SOF audio support");
+MODULE_ALIAS("platform:rt5682-rt1019");
+MODULE_ALIAS("platform:rt5682-max");
+MODULE_ALIAS("platform:rt5682s-max");
+MODULE_LICENSE("GPL v2");

sound/soc/amd/acp/amd.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+ */
+
+#ifndef __AMD_ACP_H
+#define __AMD_ACP_H
+
+#include <sound/pcm.h>
+#include <sound/soc-acpi.h>
+#include "chip_offset_byte.h"
+
+#define I2S_SP_INSTANCE			0x00
+#define I2S_BT_INSTANCE			0x01
+
+#define MEM_WINDOW_START		0x4000000
+
+#define ACP_I2S_REG_START		0x1242400
+#define ACP_I2S_REG_END			0x1242810
+#define ACP3x_I2STDM_REG_START		0x1242400
+#define ACP3x_I2STDM_REG_END		0x1242410
+#define ACP3x_BT_TDM_REG_START		0x1242800
+#define ACP3x_BT_TDM_REG_END		0x1242810
+#define I2S_MODE			0x04
+#define I2S_RX_THRESHOLD		27
+#define I2S_TX_THRESHOLD		28
+#define BT_TX_THRESHOLD			26
+#define BT_RX_THRESHOLD			25
+
+#define ACP_SRAM_PTE_OFFSET		0x02052800
+
+#define ACP_SRAM_SP_PB_PTE_OFFSET	0x0
+#define ACP_SRAM_SP_CP_PTE_OFFSET	0x100
+#define ACP_SRAM_BT_PB_PTE_OFFSET	0x200
+#define ACP_SRAM_BT_CP_PTE_OFFSET	0x300
+#define PAGE_SIZE_4K_ENABLE		0x2
+
+#define I2S_SP_TX_MEM_WINDOW_START	0x4000000
+#define I2S_SP_RX_MEM_WINDOW_START	0x4020000
+#define I2S_BT_TX_MEM_WINDOW_START	0x4040000
+#define I2S_BT_RX_MEM_WINDOW_START	0x4060000
+
+#define SP_PB_FIFO_ADDR_OFFSET		0x500
+#define SP_CAPT_FIFO_ADDR_OFFSET	0x700
+#define BT_PB_FIFO_ADDR_OFFSET		0x900
+#define BT_CAPT_FIFO_ADDR_OFFSET	0xB00
+#define PLAYBACK_MIN_NUM_PERIODS	2
+#define PLAYBACK_MAX_NUM_PERIODS	8
+#define PLAYBACK_MAX_PERIOD_SIZE	8192
+#define PLAYBACK_MIN_PERIOD_SIZE	1024
+#define CAPTURE_MIN_NUM_PERIODS		2
+#define CAPTURE_MAX_NUM_PERIODS		8
+#define CAPTURE_MAX_PERIOD_SIZE		8192
+#define CAPTURE_MIN_PERIOD_SIZE		1024
+
+#define MAX_BUFFER			65536
+#define MIN_BUFFER			MAX_BUFFER
+#define FIFO_SIZE			0x100
+#define DMA_SIZE			0x40
+#define FRM_LEN				0x100
+
+#define ACP3x_ITER_IRER_SAMP_LEN_MASK	0x38
+
+#define ACP_MAX_STREAM			6
+
+struct acp_stream {
+	struct snd_pcm_substream *substream;
+	int irq_bit;
+	int dai_id;
+	int id;
+	u64 bytescount;
+	u32 reg_offset;
+	u32 pte_offset;
+	u32 fifo_offset;
+};
+
+struct acp_dev_data {
+	char *name;
+	struct device *dev;
+	void __iomem *acp_base;
+	unsigned int i2s_irq;
+
+	/* SOC specific dais */
+	struct snd_soc_dai_driver *dai_driver;
+	int num_dai;
+
+	struct acp_stream *stream[ACP_MAX_STREAM];
+
+	struct snd_soc_acpi_mach *machines;
+	struct platform_device *mach_dev;
+};
+
+extern const struct snd_soc_dai_ops asoc_acp_cpu_dai_ops;
+
+int asoc_acp_i2s_probe(struct snd_soc_dai *dai);
+int acp_platform_register(struct device *dev);
+int acp_platform_unregister(struct device *dev);
+
+int acp_machine_select(struct acp_dev_data *adata);
+extern struct snd_soc_acpi_mach snd_soc_acpi_amd_acp_machines[];
+
+static inline u64 acp_get_byte_count(struct acp_dev_data *adata, int dai_id, int direction)
+{
+	u64 byte_count, low = 0, high = 0;
+
+	if (direction == SNDRV_PCM_STREAM_PLAYBACK) {
+		switch (dai_id) {
+		case I2S_BT_INSTANCE:
+			high = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_HIGH);
+			low = readl(adata->acp_base + ACP_BT_TX_LINEARPOSITIONCNTR_LOW);
+			break;
+		case I2S_SP_INSTANCE:
+			high = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH);
+			low = readl(adata->acp_base + ACP_I2S_TX_LINEARPOSITIONCNTR_LOW);
+			break;
+		default:
+			dev_err(adata->dev, "Invalid dai id %x\n", dai_id);
+			return -EINVAL;
+		}
+	} else {
+		switch (dai_id) {
+		case I2S_BT_INSTANCE:
+			high = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_HIGH);
+			low = readl(adata->acp_base + ACP_BT_RX_LINEARPOSITIONCNTR_LOW);
+			break;
+		case I2S_SP_INSTANCE:
+			high = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH);
+			low = readl(adata->acp_base + ACP_I2S_RX_LINEARPOSITIONCNTR_LOW);
+			break;
+		default:
+			dev_err(adata->dev, "Invalid dai id %x\n", dai_id);
+			return -EINVAL;
+		}
+	}
+	/* Get 64 bit value from two 32 bit registers */
+	byte_count = (high << 32) | low;
+
+	return byte_count;
+}
+
+#endif

sound/soc/amd/acp/chip_offset_byte.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
+/*
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * Copyright(c) 2021 Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * Author: Ajit Kumar Pandey <AjitKumar.Pandey@amd.com>
+ */
+
+#ifndef _ACP_IP_OFFSET_HEADER
+#define _ACP_IP_OFFSET_HEADER
+
+#define ACPAXI2AXI_ATU_CTRL                           0xC40
+#define ACPAXI2AXI_ATU_PAGE_SIZE_GRP_5                0xC20
+#define ACPAXI2AXI_ATU_BASE_ADDR_GRP_5                0xC24
+#define ACP_EXTERNAL_INTR_ENB                         0x1800
+#define ACP_EXTERNAL_INTR_CNTL                        0x1804
+#define ACP_EXTERNAL_INTR_STAT                        0x1808
+#define ACP_I2S_PIN_CONFIG                            0x1400
+#define ACP_SCRATCH_REG_0                             0x12800
+
+/* Registers from ACP_AUDIO_BUFFERS block */
+
+#define ACP_I2S_RX_RINGBUFADDR                        0x2000
+#define ACP_I2S_RX_RINGBUFSIZE                        0x2004
+#define ACP_I2S_RX_LINKPOSITIONCNTR                   0x2008
+#define ACP_I2S_RX_FIFOADDR                           0x200C
+#define ACP_I2S_RX_FIFOSIZE                           0x2010
+#define ACP_I2S_RX_DMA_SIZE                           0x2014
+#define ACP_I2S_RX_LINEARPOSITIONCNTR_HIGH            0x2018
+#define ACP_I2S_RX_LINEARPOSITIONCNTR_LOW             0x201C
+#define ACP_I2S_RX_INTR_WATERMARK_SIZE                0x2020
+#define ACP_I2S_TX_RINGBUFADDR                        0x2024
+#define ACP_I2S_TX_RINGBUFSIZE                        0x2028
+#define ACP_I2S_TX_LINKPOSITIONCNTR                   0x202C
+#define ACP_I2S_TX_FIFOADDR                           0x2030
+#define ACP_I2S_TX_FIFOSIZE                           0x2034
+#define ACP_I2S_TX_DMA_SIZE                           0x2038
+#define ACP_I2S_TX_LINEARPOSITIONCNTR_HIGH            0x203C
+#define ACP_I2S_TX_LINEARPOSITIONCNTR_LOW             0x2040
+#define ACP_I2S_TX_INTR_WATERMARK_SIZE                0x2044
+#define ACP_BT_RX_RINGBUFADDR                         0x2048
+#define ACP_BT_RX_RINGBUFSIZE                         0x204C
+#define ACP_BT_RX_LINKPOSITIONCNTR                    0x2050
+#define ACP_BT_RX_FIFOADDR                            0x2054
+#define ACP_BT_RX_FIFOSIZE                            0x2058
+#define ACP_BT_RX_DMA_SIZE                            0x205C
+#define ACP_BT_RX_LINEARPOSITIONCNTR_HIGH             0x2060
+#define ACP_BT_RX_LINEARPOSITIONCNTR_LOW              0x2064
+#define ACP_BT_RX_INTR_WATERMARK_SIZE                 0x2068
+#define ACP_BT_TX_RINGBUFADDR                         0x206C
+#define ACP_BT_TX_RINGBUFSIZE                         0x2070
+#define ACP_BT_TX_LINKPOSITIONCNTR                    0x2074
+#define ACP_BT_TX_FIFOADDR                            0x2078
+#define ACP_BT_TX_FIFOSIZE                            0x207C
+#define ACP_BT_TX_DMA_SIZE                            0x2080
+#define ACP_BT_TX_LINEARPOSITIONCNTR_HIGH             0x2084
+#define ACP_BT_TX_LINEARPOSITIONCNTR_LOW              0x2088
+#define ACP_BT_TX_INTR_WATERMARK_SIZE                 0x208C
+
+#define ACP_I2STDM_IER                                0x2400
+#define ACP_I2STDM_IRER                               0x2404
+#define ACP_I2STDM_RXFRMT                             0x2408
+#define ACP_I2STDM_ITER                               0x240C
+#define ACP_I2STDM_TXFRMT                             0x2410
+
+/* Registers from ACP_BT_TDM block */
+
+#define ACP_BTTDM_IER                                 0x2800
+#define ACP_BTTDM_IRER                                0x2804
+#define ACP_BTTDM_RXFRMT                              0x2808
+#define ACP_BTTDM_ITER                                0x280C
+#define ACP_BTTDM_TXFRMT                              0x2810
+
+#endif