ASoC: Add WM5100 driver

The WM5100 is a highly integrated low power audio subsystem with advanced
digital signal processing capabilities including effects, speech clarity
enhancement and active noise cancellation.  This initial driver provides
support for basic audio paths, further patches will provide more
complete functionality.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>

include/sound/wm5100.h

+/*
+ * linux/sound/wm5100.h -- Platform data for WM5100
+ *
+ * Copyright 2011 Wolfson Microelectronics. PLC.
+ *
+ * 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 __LINUX_SND_WM5100_H
+#define __LINUX_SND_WM5100_H
+
+enum wm5100_in_mode {
+	WM5100_IN_SE = 0,
+	WM5100_IN_DIFF = 1,
+	WM5100_IN_DMIC = 2,
+};
+
+enum wm5100_dmic_sup {
+	WM5100_DMIC_SUP_MICVDD = 0,
+	WM5100_DMIC_SUP_MICBIAS1 = 1,
+	WM5100_DMIC_SUP_MICBIAS2 = 2,
+	WM5100_DMIC_SUP_MICBIAS3 = 3,
+};
+
+enum wm5100_micdet_bias {
+	WM5100_MICDET_MICBIAS1 = 0,
+	WM5100_MICDET_MICBIAS2 = 1,
+	WM5100_MICDET_MICBIAS3 = 2,
+};
+
+struct wm5100_jack_mode {
+	enum wm5100_micdet_bias bias;
+	int hp_pol;
+	int micd_src;
+};
+
+#define WM5100_GPIO_SET 0x10000
+
+struct wm5100_pdata {
+	int reset;      /** GPIO controlling /RESET, if any */
+	int ldo_ena;    /** GPIO controlling LODENA, if any */
+	int hp_pol;     /** GPIO controlling headset polarity, if any */
+	int irq_flags;
+	int gpio_base;
+
+	struct wm5100_jack_mode jack_modes[2];
+
+	/* Input pin mode selection */
+	enum wm5100_in_mode in_mode[4];
+
+	/* DMIC supply selection */
+	enum wm5100_dmic_sup dmic_sup[4];
+
+	int gpio_defaults[6];
+};
+
+#endif

sound/soc/codecs/Kconfig

@@ -59,6 +59,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WL1273 if MFD_WL1273_CORE
 	select SND_SOC_WM1250_EV1 if I2C
 	select SND_SOC_WM2000 if I2C
+	select SND_SOC_WM5100 if I2C
 	select SND_SOC_WM8350 if MFD_WM8350
 	select SND_SOC_WM8400 if MFD_WM8400
 	select SND_SOC_WM8510 if SND_SOC_I2C_AND_SPI
@@ -273,6 +274,9 @@ config SND_SOC_WL1273
 config SND_SOC_WM1250_EV1
 	tristate
 
+config SND_SOC_WM5100
+	tristate
+
 config SND_SOC_WM8350
 	tristate
 

sound/soc/codecs/Makefile

@@ -44,6 +44,7 @@ snd-soc-uda134x-objs := uda134x.o
 snd-soc-uda1380-objs := uda1380.o
 snd-soc-wl1273-objs := wl1273.o
 snd-soc-wm1250-ev1-objs := wm1250-ev1.o
+snd-soc-wm5100-objs := wm5100.o wm5100-tables.o
 snd-soc-wm8350-objs := wm8350.o
 snd-soc-wm8400-objs := wm8400.o
 snd-soc-wm8510-objs := wm8510.o
@@ -142,6 +143,7 @@ obj-$(CONFIG_SND_SOC_UDA134X)	+= snd-soc-uda134x.o
 obj-$(CONFIG_SND_SOC_UDA1380)	+= snd-soc-uda1380.o
 obj-$(CONFIG_SND_SOC_WL1273)	+= snd-soc-wl1273.o
 obj-$(CONFIG_SND_SOC_WM1250_EV1) += snd-soc-wm1250-ev1.o
+obj-$(CONFIG_SND_SOC_WM5100)	+= snd-soc-wm5100.o
 obj-$(CONFIG_SND_SOC_WM8350)	+= snd-soc-wm8350.o
 obj-$(CONFIG_SND_SOC_WM8400)	+= snd-soc-wm8400.o
 obj-$(CONFIG_SND_SOC_WM8510)	+= snd-soc-wm8510.o