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

@@ -0,0 +1,48 @@
+/*
+ * 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