ASoC: cs35l32: Add support for CS35L32 Boosted Amplifier

This patch adds support for the Cirrus Logic CS35L32 Boosted Amplifier
I2S output provides monitor data to the SOC/CODEC/DSP for speaker protection/enhancement algorithms
Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

include/dt-bindings/sound/cs35l32.h

+#ifndef __DT_CS35L32_H
+#define __DT_CS35L32_H
+
+#define CS35L32_BOOST_MGR_AUTO		0
+#define CS35L32_BOOST_MGR_AUTO_AUDIO	1
+#define CS35L32_BOOST_MGR_BYPASS	2
+#define CS35L32_BOOST_MGR_FIXED		3
+
+#define CS35L32_DATA_CFG_LR_VP		0
+#define CS35L32_DATA_CFG_LR_STAT	1
+#define CS35L32_DATA_CFG_LR		2
+#define CS35L32_DATA_CFG_LR_VPSTAT	3
+
+#define CS35L32_BATT_THRESH_3_1V	0
+#define CS35L32_BATT_THRESH_3_2V	1
+#define CS35L32_BATT_THRESH_3_3V	2
+#define CS35L32_BATT_THRESH_3_4V	3
+
+#define CS35L32_BATT_RECOV_3_1V		0
+#define CS35L32_BATT_RECOV_3_2V		1
+#define CS35L32_BATT_RECOV_3_3V		2
+#define CS35L32_BATT_RECOV_3_4V		3
+#define CS35L32_BATT_RECOV_3_5V		4
+#define CS35L32_BATT_RECOV_3_6V		5
+
+#endif /* __DT_CS35L32_H */

sound/soc/codecs/Kconfig

@@ -43,6 +43,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_ALC5623 if I2C
 	select SND_SOC_ALC5632 if I2C
 	select SND_SOC_CQ0093VC if MFD_DAVINCI_VOICECODEC
+	select SND_SOC_CS35L32 if I2C
 	select SND_SOC_CS42L51_I2C if I2C
 	select SND_SOC_CS42L52 if I2C && INPUT
 	select SND_SOC_CS42L56 if I2C && INPUT
@@ -323,6 +324,10 @@ config SND_SOC_ALC5632
 config SND_SOC_CQ0093VC
 	tristate
 
+config SND_SOC_CS35L32
+	tristate "Cirrus Logic CS35L32 CODEC"
+	depends on I2C
+
 config SND_SOC_CS42L51
 	tristate
 

sound/soc/codecs/Makefile

@@ -32,6 +32,7 @@ snd-soc-ak4671-objs := ak4671.o
 snd-soc-ak5386-objs := ak5386.o
 snd-soc-arizona-objs := arizona.o
 snd-soc-cq93vc-objs := cq93vc.o
+snd-soc-cs35l32-objs := cs35l32.o
 snd-soc-cs42l51-objs := cs42l51.o
 snd-soc-cs42l51-i2c-objs := cs42l51-i2c.o
 snd-soc-cs42l52-objs := cs42l52.o
@@ -203,6 +204,7 @@ obj-$(CONFIG_SND_SOC_ALC5623)    += snd-soc-alc5623.o
 obj-$(CONFIG_SND_SOC_ALC5632)	+= snd-soc-alc5632.o
 obj-$(CONFIG_SND_SOC_ARIZONA)	+= snd-soc-arizona.o
 obj-$(CONFIG_SND_SOC_CQ0093VC) += snd-soc-cq93vc.o
+obj-$(CONFIG_SND_SOC_CS35L32)	+= snd-soc-cs35l32.o
 obj-$(CONFIG_SND_SOC_CS42L51)	+= snd-soc-cs42l51.o
 obj-$(CONFIG_SND_SOC_CS42L51_I2C)	+= snd-soc-cs42l51-i2c.o
 obj-$(CONFIG_SND_SOC_CS42L52)	+= snd-soc-cs42l52.o

sound/soc/codecs/cs35l32.h

+/*
+ * cs35l32.h -- CS35L32 ALSA SoC audio driver
+ *
+ * Copyright 2014 CirrusLogic, Inc.
+ *
+ * Author: Brian Austin <brian.austin@cirrus.com>
+ *
+ * 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.
+ *
+ */
+
+#ifndef __CS35L32_H__
+#define __CS35L32_H__
+
+struct cs35l32_platform_data {
+	/* Low Battery Threshold */
+	unsigned int batt_thresh;
+	/* Low Battery Recovery */
+	unsigned int batt_recov;
+	/* LED Current Management*/
+	unsigned int led_mng;
+	/* Audio Gain w/ LED */
+	unsigned int audiogain_mng;
+	/* Boost Management */
+	unsigned int boost_mng;
+	/* Data CFG for DUAL device */
+	unsigned int sdout_datacfg;
+	/* SDOUT Sharing */
+	unsigned int sdout_share;
+};
+
+#define CS35L32_CHIP_ID		0x00035A32
+#define CS35L32_DEVID_AB	0x01	/* Device ID A & B [RO] */
+#define CS35L32_DEVID_CD	0x02    /* Device ID C & D [RO] */
+#define CS35L32_DEVID_E		0x03    /* Device ID E [RO] */
+#define CS35L32_FAB_ID		0x04	/* Fab ID [RO] */
+#define CS35L32_REV_ID		0x05	/* Revision ID [RO] */
+#define CS35L32_PWRCTL1		0x06    /* Power Ctl 1 */
+#define CS35L32_PWRCTL2		0x07    /* Power Ctl 2 */
+#define CS35L32_CLK_CTL		0x08	/* Clock Ctl */
+#define CS35L32_BATT_THRESHOLD	0x09	/* Low Battery Threshold */
+#define CS35L32_VMON		0x0A	/* Voltage Monitor [RO] */
+#define CS35L32_BST_CPCP_CTL	0x0B	/* Conv Peak Curr Protection CTL */
+#define CS35L32_IMON_SCALING	0x0C	/* IMON Scaling */
+#define CS35L32_AUDIO_LED_MNGR	0x0D	/* Audio/LED Pwr Manager */
+#define CS35L32_ADSP_CTL	0x0F	/* Serial Port Control */
+#define CS35L32_CLASSD_CTL	0x10	/* Class D Amp CTL */
+#define CS35L32_PROTECT_CTL	0x11	/* Protection Release CTL */
+#define CS35L32_INT_MASK_1	0x12	/* Interrupt Mask 1 */
+#define CS35L32_INT_MASK_2	0x13	/* Interrupt Mask 2 */
+#define CS35L32_INT_MASK_3	0x14	/* Interrupt Mask 3 */
+#define CS35L32_INT_STATUS_1	0x15	/* Interrupt Status 1 [RO] */
+#define CS35L32_INT_STATUS_2	0x16	/* Interrupt Status 2 [RO] */
+#define CS35L32_INT_STATUS_3	0x17	/* Interrupt Status 3 [RO] */
+#define CS35L32_LED_STATUS	0x18	/* LED Lighting Status [RO] */
+#define CS35L32_FLASH_MODE	0x19	/* LED Flash Mode Current */
+#define CS35L32_MOVIE_MODE	0x1A	/* LED Movie Mode Current */
+#define CS35L32_FLASH_TIMER	0x1B	/* LED Flash Timer */
+#define CS35L32_FLASH_INHIBIT	0x1C	/* LED Flash Inhibit Current */
+#define CS35L32_MAX_REGISTER	0x1C
+
+#define CS35L32_MCLK_DIV2	0x01
+#define CS35L32_MCLK_RATIO	0x01
+#define CS35L32_MCLKDIS		0x80
+#define CS35L32_PDN_ALL		0x01
+#define CS35L32_PDN_AMP		0x80
+#define CS35L32_PDN_BOOST	0x04
+#define CS35L32_PDN_IMON	0x40
+#define CS35L32_PDN_VMON	0x80
+#define CS35L32_PDN_VPMON	0x20
+#define CS35L32_PDN_ADSP	0x08
+
+#define CS35L32_MCLK_DIV2_MASK		0x40
+#define CS35L32_MCLK_RATIO_MASK		0x01
+#define CS35L32_MCLK_MASK		0x41
+#define CS35L32_ADSP_MASTER_MASK	0x40
+#define CS35L32_BOOST_MASK		0x03
+#define CS35L32_GAIN_MGR_MASK		0x08
+#define CS35L32_ADSP_SHARE_MASK		0x08
+#define CS35L32_ADSP_DATACFG_MASK	0x30
+#define CS35L32_SDOUT_3ST		0x80
+#define CS35L32_BATT_REC_MASK		0x0E
+#define CS35L32_BATT_THRESH_MASK	0x30
+
+#define CS35L32_RATES (SNDRV_PCM_RATE_48000)
+#define CS35L32_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+			SNDRV_PCM_FMTBIT_S24_LE | \
+			SNDRV_PCM_FMTBIT_S32_LE)
+
+
+#endif