ASoC: rt5645: Add codec driver

This patch adds the Realtek ALC5645 codec driver. It is the base
version that because the jack detect function is not implemented to
it, the headphone and AMIC1 are not workable. We will fill up the
further functions later.
Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

include/sound/rt5645.h

+/*
+ * linux/sound/rt5645.h -- Platform data for RT5645
+ *
+ * Copyright 2013 Realtek Microelectronics
+ *
+ * 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_RT5645_H
+#define __LINUX_SND_RT5645_H
+
+struct rt5645_platform_data {
+	/* IN2 can optionally be differential */
+	bool in2_diff;
+
+	bool dmic_en;
+	unsigned int dmic1_data_pin;
+	/* 0 = IN2N; 1 = GPIO5; 2 = GPIO11 */
+	unsigned int dmic2_data_pin;
+	/* 0 = IN2P; 1 = GPIO6; 2 = GPIO10; 3 = GPIO12 */
+};
+
+#endif

sound/soc/codecs/Kconfig

@@ -71,6 +71,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_PCM512x_SPI if SPI_MASTER
 	select SND_SOC_RT5631 if I2C
 	select SND_SOC_RT5640 if I2C
+	select SND_SOC_RT5645 if I2C
 	select SND_SOC_RT5651 if I2C
 	select SND_SOC_SGTL5000 if I2C
 	select SND_SOC_SI476X if MFD_SI476X_CORE
@@ -397,6 +398,9 @@ config SND_SOC_RT5631
 config SND_SOC_RT5640
 	tristate
 
+config SND_SOC_RT5645
+        tristate
+
 config SND_SOC_RT5651
 	tristate
 

sound/soc/codecs/Makefile

@@ -60,6 +60,7 @@ snd-soc-pcm512x-i2c-objs := pcm512x-i2c.o
 snd-soc-pcm512x-spi-objs := pcm512x-spi.o
 snd-soc-rt5631-objs := rt5631.o
 snd-soc-rt5640-objs := rt5640.o
+snd-soc-rt5645-objs := rt5645.o
 snd-soc-rt5651-objs := rt5651.o
 snd-soc-sgtl5000-objs := sgtl5000.o
 snd-soc-alc5623-objs := alc5623.o
@@ -212,6 +213,7 @@ obj-$(CONFIG_SND_SOC_PCM512x_I2C)	+= snd-soc-pcm512x-i2c.o
 obj-$(CONFIG_SND_SOC_PCM512x_SPI)	+= snd-soc-pcm512x-spi.o
 obj-$(CONFIG_SND_SOC_RT5631)	+= snd-soc-rt5631.o
 obj-$(CONFIG_SND_SOC_RT5640)	+= snd-soc-rt5640.o
+obj-$(CONFIG_SND_SOC_RT5645)	+= snd-soc-rt5645.o
 obj-$(CONFIG_SND_SOC_RT5651)	+= snd-soc-rt5651.o
 obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o
 obj-$(CONFIG_SND_SOC_SIGMADSP)	+= snd-soc-sigmadsp.o