ASoC: wcd934x: add support to wcd9340/wcd9341 codec

Qualcomm WCD9340/WCD9341 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 Five DACs and seven dedicated interpolators,
Seven (six audio ADCs, and one VBAT ADC), Multibutton headset
control (MBHC), Active noise cancellation, Sidetone paths,
MAD (mic activity detection) and codec processing engine.
It supports Class-H differential earpiece out and stereo single
ended headphones out.
This codec also has integrated SoundWire controller.

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

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20191219103153.14875-4-srinivas.kandagatla@linaro.org
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/Kconfig

@@ -207,6 +207,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_UDA134X
 	select SND_SOC_UDA1380 if I2C
 	select SND_SOC_WCD9335 if SLIMBUS
+	select SND_SOC_WCD934X if MFD_WCD934X
 	select SND_SOC_WL1273 if MFD_WL1273_CORE
 	select SND_SOC_WM0010 if SPI_MASTER
 	select SND_SOC_WM1250_EV1 if I2C
@@ -1275,6 +1276,13 @@ config SND_SOC_WCD9335
 	  Qualcomm Technologies, Inc. (QTI) multimedia solutions,
 	  including the MSM8996, MSM8976, and MSM8956 chipsets.
 
+config SND_SOC_WCD934X
+	tristate "WCD9340/WCD9341 Codec"
+	depends on MFD_WCD934X
+	help
+	  The WCD9340/9341 is a audio codec IC Integrated in
+	  Qualcomm SoCs like SDM845.
+
 config SND_SOC_WL1273
 	tristate
 

sound/soc/codecs/Makefile

@@ -220,6 +220,7 @@ snd-soc-uda1334-objs := uda1334.o
 snd-soc-uda134x-objs := uda134x.o
 snd-soc-uda1380-objs := uda1380.o
 snd-soc-wcd9335-objs := wcd-clsh-v2.o wcd9335.o
+snd-soc-wcd934x-objs := wcd-clsh-v2.o wcd934x.o
 snd-soc-wl1273-objs := wl1273.o
 snd-soc-wm-adsp-objs := wm_adsp.o
 snd-soc-wm0010-objs := wm0010.o
@@ -509,6 +510,7 @@ obj-$(CONFIG_SND_SOC_UDA1334)	+= snd-soc-uda1334.o
 obj-$(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-$(CONFIG_SND_SOC_WCD934X)	+= snd-soc-wcd934x.o
 obj-$(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