ASoC: Add support for CS42L56 CODEC

This patch adds support for the Cirrus Logic Low Power Stereo I2C CODEC
Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

include/sound/cs42l56.h

+/*
+ * linux/sound/cs42l56.h -- Platform data for CS42L56
+ *
+ * Copyright (c) 2014 Cirrus Logic Inc.
+ *
+ * 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 __CS42L56_H
+#define __CS42L56_H
+
+struct cs42l56_platform_data {
+
+	/* GPIO for Reset */
+	unsigned int gpio_nreset;
+
+	/* MICBIAS Level. Check datasheet Pg48 */
+	unsigned int micbias_lvl;
+
+	/* Analog Input 1A Reference 0=Single 1=Pseudo-Differential */
+	unsigned int ain1a_ref_cfg;
+
+	/* Analog Input 2A Reference 0=Single 1=Pseudo-Differential */
+	unsigned int ain2a_ref_cfg;
+
+	/* Analog Input 1B Reference 0=Single 1=Pseudo-Differential */
+	unsigned int ain1b_ref_cfg;
+
+	/* Analog Input 2B Reference 0=Single 1=Pseudo-Differential */
+	unsigned int ain2b_ref_cfg;
+
+	/* Charge Pump Freq. Check datasheet Pg62 */
+	unsigned int chgfreq;
+
+	/* HighPass Filter Right Channel Corner Frequency */
+	unsigned int hpfb_freq;
+
+	/* HighPass Filter Left Channel Corner Frequency */
+	unsigned int hpfa_freq;
+
+	/* Adaptive Power Control for LO/HP */
+	unsigned int adaptive_pwr;
+
+};
+
+#endif /* __CS42L56_H */

sound/soc/codecs/Kconfig

@@ -41,6 +41,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_CQ0093VC if MFD_DAVINCI_VOICECODEC
 	select SND_SOC_CS42L51_I2C if I2C
 	select SND_SOC_CS42L52 if I2C && INPUT
+	select SND_SOC_CS42L56 if I2C && INPUT
 	select SND_SOC_CS42L73 if I2C
 	select SND_SOC_CS4270 if I2C
 	select SND_SOC_CS4271 if SND_SOC_I2C_AND_SPI
@@ -288,6 +289,10 @@ config SND_SOC_CS42L52
 	tristate "Cirrus Logic CS42L52 CODEC"
 	depends on I2C && INPUT
 
+config SND_SOC_CS42L56
+	tristate "Cirrus Logic CS42L56 CODEC"
+	depends on I2C && INPUT
+
 config SND_SOC_CS42L73
 	tristate "Cirrus Logic CS42L73 CODEC"
 	depends on I2C

sound/soc/codecs/Makefile

@@ -28,6 +28,7 @@ snd-soc-cq93vc-objs := cq93vc.o
 snd-soc-cs42l51-objs := cs42l51.o
 snd-soc-cs42l51-i2c-objs := cs42l51-i2c.o
 snd-soc-cs42l52-objs := cs42l52.o
+snd-soc-cs42l56-objs := cs42l56.o
 snd-soc-cs42l73-objs := cs42l73.o
 snd-soc-cs4270-objs := cs4270.o
 snd-soc-cs4271-objs := cs4271.o
@@ -180,6 +181,7 @@ obj-$(CONFIG_SND_SOC_CQ0093VC) += snd-soc-cq93vc.o
 obj-$(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
+obj-$(CONFIG_SND_SOC_CS42L56)	+= snd-soc-cs42l56.o
 obj-$(CONFIG_SND_SOC_CS42L73)	+= snd-soc-cs42l73.o
 obj-$(CONFIG_SND_SOC_CS4270)	+= snd-soc-cs4270.o
 obj-$(CONFIG_SND_SOC_CS4271)	+= snd-soc-cs4271.o

sound/soc/codecs/cs42l56.h

+/*
+ * cs42l52.h -- CS42L56 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 __CS42L56_H__
+#define __CS42L56_H__
+
+#define CS42L56_CHIP_ID_1		0x01
+#define CS42L56_CHIP_ID_2		0x02
+#define CS42L56_PWRCTL_1		0x03
+#define CS42L56_PWRCTL_2		0x04
+#define CS42L56_CLKCTL_1		0x05
+#define CS42L56_CLKCTL_2		0x06
+#define CS42L56_SERIAL_FMT		0x07
+#define CS42L56_CLASSH_CTL		0x08
+#define CS42L56_MISC_CTL		0x09
+#define CS42L56_INT_STATUS		0x0a
+#define CS42L56_PLAYBACK_CTL		0x0b
+#define CS42L56_DSP_MUTE_CTL		0x0c
+#define CS42L56_ADCA_MIX_VOLUME		0x0d
+#define CS42L56_ADCB_MIX_VOLUME		0x0e
+#define CS42L56_PCMA_MIX_VOLUME		0x0f
+#define CS42L56_PCMB_MIX_VOLUME		0x10
+#define CS42L56_ANAINPUT_ADV_VOLUME	0x11
+#define CS42L56_DIGINPUT_ADV_VOLUME	0x12
+#define CS42L56_MASTER_A_VOLUME		0x13
+#define CS42L56_MASTER_B_VOLUME		0x14
+#define CS42L56_BEEP_FREQ_ONTIME	0x15
+#define CS42L56_BEEP_FREQ_OFFTIME	0x16
+#define CS42L56_BEEP_TONE_CFG		0x17
+#define CS42L56_TONE_CTL		0x18
+#define CS42L56_CHAN_MIX_SWAP		0x19
+#define CS42L56_AIN_REFCFG_ADC_MUX	0x1a
+#define CS42L56_HPF_CTL			0x1b
+#define CS42L56_MISC_ADC_CTL		0x1c
+#define CS42L56_GAIN_BIAS_CTL		0x1d
+#define CS42L56_PGAA_MUX_VOLUME		0x1e
+#define CS42L56_PGAB_MUX_VOLUME		0x1f
+#define CS42L56_ADCA_ATTENUATOR		0x20
+#define CS42L56_ADCB_ATTENUATOR		0x21
+#define CS42L56_ALC_EN_ATTACK_RATE	0x22
+#define CS42L56_ALC_RELEASE_RATE	0x23
+#define CS42L56_ALC_THRESHOLD		0x24
+#define CS42L56_NOISE_GATE_CTL		0x25
+#define CS42L56_ALC_LIM_SFT_ZC		0x26
+#define CS42L56_AMUTE_HPLO_MUX		0x27
+#define CS42L56_HPA_VOLUME		0x28
+#define CS42L56_HPB_VOLUME		0x29
+#define CS42L56_LOA_VOLUME		0x2a
+#define CS42L56_LOB_VOLUME		0x2b
+#define CS42L56_LIM_THRESHOLD_CTL	0x2c
+#define CS42L56_LIM_CTL_RELEASE_RATE	0x2d
+#define CS42L56_LIM_ATTACK_RATE		0x2e
+
+/* Device ID and Rev ID Masks */
+#define CS42L56_DEVID			0x56
+#define CS42L56_CHIP_ID_MASK		0xff
+#define CS42L56_AREV_MASK		0x1c
+#define CS42L56_MTLREV_MASK		0x03
+
+/* Power bit masks */
+#define CS42L56_PDN_ALL_MASK		0x01
+#define CS42L56_PDN_ADCA_MASK		0x02
+#define CS42L56_PDN_ADCB_MASK		0x04
+#define CS42L56_PDN_CHRG_MASK		0x08
+#define CS42L56_PDN_BIAS_MASK		0x10
+#define CS42L56_PDN_VBUF_MASK		0x20
+#define CS42L56_PDN_LOA_MASK		0x03
+#define CS42L56_PDN_LOB_MASK		0x0c
+#define CS42L56_PDN_HPA_MASK		0x30
+#define CS42L56_PDN_HPB_MASK		0xc0
+
+/* serial port and clk masks */
+#define CS42L56_MASTER_MODE		1
+#define CS42L56_SLAVE_MODE		0
+#define CS42L56_MS_MODE_MASK		0x40
+#define CS42L56_SCLK_INV		1
+#define CS42L56_SCLK_INV_MASK		0x20
+#define CS42L56_SCLK_MCLK_MASK		0x18
+#define CS42L56_MCLK_PREDIV_MASK	0x04
+#define CS42L56_MCLK_DIV2_MASK		0x02
+#define CS42L56_MCLK_DIS_MASK		0x01
+#define CS42L56_CLK_AUTO_MASK		0x20
+#define CS42L56_CLK_RATIO_MASK		0x1f
+#define CS42L56_DIG_FMT_I2S		0
+#define CS42L56_DIG_FMT_LEFT_J		1
+#define CS42L56_DIG_FMT_MASK		0x08
+
+/* Class H and misc ctl masks */
+#define CS42L56_ADAPT_PWR_MASK		0xc0
+#define CS42L56_CHRG_FREQ_MASK		0x0f
+#define CS42L56_DIG_MUX_MASK		0x80
+#define CS42L56_ANLGSFT_MASK		0x10
+#define CS42L56_ANLGZC_MASK		0x08
+#define CS42L56_DIGSFT_MASK		0x04
+#define CS42L56_FREEZE_MASK		0x01
+#define CS42L56_MIC_BIAS_MASK		0x03
+#define CS42L56_HPFA_FREQ_MASK		0x03
+#define CS42L56_HPFB_FREQ_MASK		0xc0
+#define CS42L56_AIN1A_REF_MASK		0x10
+#define CS42L56_AIN2A_REF_MASK		0x40
+#define CS42L56_AIN1B_REF_MASK		0x20
+#define CS42L56_AIN2B_REF_MASK		0x80
+
+/* Playback Capture ctl masks */
+#define CS42L56_PDN_DSP_MASK		0x80
+#define CS42L56_DEEMPH_MASK		0x40
+#define CS42L56_PLYBCK_GANG_MASK	0x10
+#define CS42L56_PCM_INV_MASK		0x0c
+#define CS42L56_MUTE			1
+#define CS42L56_UNMUTE			0
+#define CS42L56_ADCAMIX_MUTE_MASK	0x40
+#define CS42L56_ADCBMIX_MUTE_MASK	0x80
+#define CS42L56_PCMAMIX_MUTE_MASK	0x10
+#define CS42L56_PCMBMIX_MUTE_MASK	0x20
+#define CS42L56_MSTB_MUTE_MASK		0x02
+#define CS42L56_MSTA_MUTE_MASK		0x01
+#define CS42L56_ADCA_MUTE_MASK		0x01
+#define CS42L56_ADCB_MUTE_MASK		0x02
+#define CS42L56_HP_MUTE_MASK		0x80
+#define CS42L56_LO_MUTE_MASK		0x80
+
+/* Beep masks */
+#define CS42L56_BEEP_FREQ_MASK		0xf0
+#define CS42L56_BEEP_ONTIME_MASK	0x0f
+#define CS42L56_BEEP_OFFTIME_MASK	0xe0
+#define CS42L56_BEEP_CFG_MASK		0xc0
+#define CS42L56_BEEP_TREBCF_MASK	0x18
+#define CS42L56_BEEP_BASSCF_MASK	0x06
+#define CS42L56_BEEP_TCEN_MASK		0x01
+#define CS42L56_BEEP_RATE_SHIFT		4
+#define CS42L56_BEEP_EN_MASK		0x3f
+
+
+/* Supported MCLKS */
+#define CS42L56_MCLK_5P6448MHZ		5644800
+#define CS42L56_MCLK_6MHZ		6000000
+#define CS42L56_MCLK_6P144MHZ		6144000
+#define CS42L56_MCLK_11P2896MHZ		11289600
+#define CS42L56_MCLK_12MHZ		12000000
+#define CS42L56_MCLK_12P288MHZ		12288000
+#define CS42L56_MCLK_22P5792MHZ		22579200
+#define CS42L56_MCLK_24MHZ		24000000
+#define CS42L56_MCLK_24P576MHZ		24576000
+
+/* Clock ratios */
+#define CS42L56_MCLK_LRCLK_128		0x08
+#define CS42L56_MCLK_LRCLK_125		0x09
+#define CS42L56_MCLK_LRCLK_136		0x0b
+#define CS42L56_MCLK_LRCLK_192		0x0c
+#define CS42L56_MCLK_LRCLK_187P5	0x0d
+#define CS42L56_MCLK_LRCLK_256		0x10
+#define CS42L56_MCLK_LRCLK_250		0x11
+#define CS42L56_MCLK_LRCLK_272		0x13
+#define CS42L56_MCLK_LRCLK_384		0x14
+#define CS42L56_MCLK_LRCLK_375		0x15
+#define CS42L56_MCLK_LRCLK_512		0x18
+#define CS42L56_MCLK_LRCLK_500		0x19
+#define CS42L56_MCLK_LRCLK_544		0x1b
+#define CS42L56_MCLK_LRCLK_750		0x1c
+#define CS42L56_MCLK_LRCLK_768		0x1d
+
+
+#define CS42L56_MAX_REGISTER		0x34
+
+#endif