ASoC: Add initial WM8962 CODEC driver

The WM8962 is a low power, high performance stereo CODEC designed for
portable digital audio applications.

This initial driver release supports the key audio paths of the WM8962.
Extended functionality, such as microphone detection, digital microphones
and the advanced DSP signal enhancements provided by the device are not
yet supported.
Signed-off-by: NMark Brown <broonie@opensource.wolfsonmicro.com>

include/sound/wm8962.h

+/*
+ * wm8962.h  --  WM8962 Soc Audio driver platform data
+ *
+ * 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 _WM8962_PDATA_H
+#define _WM8962_PDATA_H
+
+#define WM8962_MAX_GPIO 6
+
+/* Use to set GPIO default values to zero */
+#define WM8962_GPIO_SET 0x10000
+
+struct wm8962_pdata {
+	u32 gpio_init[WM8962_MAX_GPIO];
+
+	bool spk_mono;   /* Speaker outputs tied together as mono */
+};
+
+#endif

sound/soc/codecs/Kconfig

@@ -61,6 +61,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM8955 if I2C
 	select SND_SOC_WM8960 if I2C
 	select SND_SOC_WM8961 if I2C
+	select SND_SOC_WM8962 if I2C
 	select SND_SOC_WM8971 if I2C
 	select SND_SOC_WM8974 if I2C
 	select SND_SOC_WM8978 if I2C
@@ -248,6 +249,9 @@ config SND_SOC_WM8960
 config SND_SOC_WM8961
 	tristate
 
+config SND_SOC_WM8962
+	tristate
+
 config SND_SOC_WM8971
 	tristate
 

sound/soc/codecs/Makefile

@@ -46,6 +46,7 @@ snd-soc-wm8940-objs := wm8940.o
 snd-soc-wm8955-objs := wm8955.o
 snd-soc-wm8960-objs := wm8960.o
 snd-soc-wm8961-objs := wm8961.o
+snd-soc-wm8962-objs := wm8962.o wm8962-tables.o
 snd-soc-wm8971-objs := wm8971.o
 snd-soc-wm8974-objs := wm8974.o
 snd-soc-wm8978-objs := wm8978.o
@@ -115,6 +116,7 @@ obj-$(CONFIG_SND_SOC_WM8940)	+= snd-soc-wm8940.o
 obj-$(CONFIG_SND_SOC_WM8955)	+= snd-soc-wm8955.o
 obj-$(CONFIG_SND_SOC_WM8960)	+= snd-soc-wm8960.o
 obj-$(CONFIG_SND_SOC_WM8961)	+= snd-soc-wm8961.o
+obj-$(CONFIG_SND_SOC_WM8962)	+= snd-soc-wm8962.o
 obj-$(CONFIG_SND_SOC_WM8971)	+= snd-soc-wm8971.o
 obj-$(CONFIG_SND_SOC_WM8974)	+= snd-soc-wm8974.o
 obj-$(CONFIG_SND_SOC_WM8978)	+= snd-soc-wm8978.o