ASoC: wcd9335: add support to wcd9335 codec

Qualcomm WCD9335 Codec is a standalone Hi-Fi audio codec IC,
It supports both I2S/I2C and SLIMbus audio interfaces.
On slimbus interface it supports two data lanes; 16 Tx ports
and 8 Rx ports. It has Seven DACs and nine dedicated interpolators,
Seven (six audio ADCs, and one VBAT ADC), Multibutton headset
control (MBHC), Active noise cancellation and Sidetone paths
and processing.

This patchset adds very basic support for playback and capture
via the 9 interpolators and ADC respectively.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -188,6 +188,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_TWL6040 if TWL6040_CORE
 	select SND_SOC_UDA134X
 	select SND_SOC_UDA1380 if I2C
+	select SND_SOC_WCD9335 if SLIMBUS
 	select SND_SOC_WL1273 if MFD_WL1273_CORE
 	select SND_SOC_WM0010 if SPI_MASTER
 	select SND_SOC_WM1250_EV1 if I2C
@@ -1114,6 +1115,14 @@ config SND_SOC_UDA1380
         tristate
 	depends on I2C
 
+config SND_SOC_WCD9335
+	tristate "WCD9335 Codec"
+	select REGMAP_SLIMBUS
+	help
+	  The WCD9335 is a standalone Hi-Fi audio CODEC IC, supports
+	  Qualcomm Technologies, Inc. (QTI) multimedia solutions,
+	  including the MSM8996, MSM8976, and MSM8956 chipsets.
+
 config SND_SOC_WL1273
 	tristate
 

sound/soc/codecs/Makefile

@@ -201,6 +201,7 @@ snd-soc-twl4030-objs := twl4030.o
 snd-soc-twl6040-objs := twl6040.o
 snd-soc-uda134x-objs := uda134x.o
 snd-soc-uda1380-objs := uda1380.o
+snd-soc-wcd9335-objs := wcd9335.o
 snd-soc-wl1273-objs := wl1273.o
 snd-soc-wm-adsp-objs := wm_adsp.o
 snd-soc-wm0010-objs := wm0010.o
@@ -469,6 +470,7 @@ obj-$(CONFIG_SND_SOC_TWL4030)	+= snd-soc-twl4030.o
 obj-$(CONFIG_SND_SOC_TWL6040)	+= snd-soc-twl6040.o
 obj-$(CONFIG_SND_SOC_UDA134X)	+= snd-soc-uda134x.o
 obj-$(CONFIG_SND_SOC_UDA1380)	+= snd-soc-uda1380.o
+obj-$(CONFIG_SND_SOC_WCD9335)	+= snd-soc-wcd9335.o
 obj-$(CONFIG_SND_SOC_WL1273)	+= snd-soc-wl1273.o
 obj-$(CONFIG_SND_SOC_WM0010)	+= snd-soc-wm0010.o
 obj-$(CONFIG_SND_SOC_WM1250_EV1) += snd-soc-wm1250-ev1.o