ASoC: add RT5670 CODEC driver

This patch adds a minimum support of Realtek ALC5670 codec.

Signed-off-by: Bard Liao <bardliao@realtek.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

include/sound/rt5670.h

@@ -0,0 +1,27 @@
+/*
+ * linux/sound/rt5670.h -- Platform data for RT5670
+ *
+ * Copyright 2014 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_RT5670_H
+#define __LINUX_SND_RT5670_H
+
+struct rt5670_platform_data {
+	int jd_mode;
+	bool in2_diff;
+
+	bool dmic_en;
+	unsigned int dmic1_data_pin;
+	/* 0 = GPIO6; 1 = IN2P; 3 = GPIO7*/
+	unsigned int dmic2_data_pin;
+	/* 0 = GPIO8; 1 = IN3N; */
+	unsigned int dmic3_data_pin;
+	/* 0 = GPIO9; 1 = GPIO10; 2 = GPIO5*/
+};
+
+#endif

sound/soc/codecs/Kconfig

@@ -78,6 +78,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_RT5640 if I2C
 	select SND_SOC_RT5645 if I2C
 	select SND_SOC_RT5651 if I2C
+	select SND_SOC_RT5670 if I2C
 	select SND_SOC_RT5677 if I2C
 	select SND_SOC_SGTL5000 if I2C
 	select SND_SOC_SI476X if MFD_SI476X_CORE
@@ -445,10 +446,12 @@ config SND_SOC_RL6231
 	default y if SND_SOC_RT5640=y
 	default y if SND_SOC_RT5645=y
 	default y if SND_SOC_RT5651=y
+	default y if SND_SOC_RT5670=y
 	default y if SND_SOC_RT5677=y
 	default m if SND_SOC_RT5640=m
 	default m if SND_SOC_RT5645=m
 	default m if SND_SOC_RT5651=m
+	default m if SND_SOC_RT5670=m
 	default m if SND_SOC_RT5677=m
 
 config SND_SOC_RT5631
@@ -463,6 +466,9 @@ config SND_SOC_RT5645
 config SND_SOC_RT5651
 	tristate
 
+config SND_SOC_RT5670
+	tristate
+
 config SND_SOC_RT5677
 	tristate
 

sound/soc/codecs/Makefile

@@ -72,6 +72,7 @@ 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-rt5670-objs := rt5670.o
 snd-soc-rt5677-objs := rt5677.o
 snd-soc-sgtl5000-objs := sgtl5000.o
 snd-soc-alc5623-objs := alc5623.o
@@ -237,6 +238,7 @@ 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-$(CONFIG_SND_SOC_RT5670)	+= snd-soc-rt5670.o
 obj-$(CONFIG_SND_SOC_RT5677)	+= snd-soc-rt5677.o
 obj-$(CONFIG_SND_SOC_SGTL5000)  += snd-soc-sgtl5000.o
 obj-$(CONFIG_SND_SOC_SIGMADSP)	+= snd-soc-sigmadsp.o

sound/soc/codecs/rt5670-dsp.h

@@ -0,0 +1,54 @@
+/*
+ * rt5670-dsp.h  --  RT5670 ALSA SoC DSP driver
+ *
+ * Copyright 2014 Realtek Microelectronics
+ * Author: Bard Liao <bardliao@realtek.com>
+ *
+ * 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 __RT5670_DSP_H__
+#define __RT5670_DSP_H__
+
+#define RT5670_DSP_CTRL1		0xe0
+#define RT5670_DSP_CTRL2		0xe1
+#define RT5670_DSP_CTRL3		0xe2
+#define RT5670_DSP_CTRL4		0xe3
+#define RT5670_DSP_CTRL5		0xe4
+
+/* DSP Control 1 (0xe0) */
+#define RT5670_DSP_CMD_MASK		(0xff << 8)
+#define RT5670_DSP_CMD_PE		(0x0d << 8)	/* Patch Entry */
+#define RT5670_DSP_CMD_MW		(0x3b << 8)	/* Memory Write */
+#define RT5670_DSP_CMD_MR		(0x37 << 8)	/* Memory Read */
+#define RT5670_DSP_CMD_RR		(0x60 << 8)	/* Register Read */
+#define RT5670_DSP_CMD_RW		(0x68 << 8)	/* Register Write */
+#define RT5670_DSP_REG_DATHI		(0x26 << 8)	/* High Data Addr */
+#define RT5670_DSP_REG_DATLO		(0x25 << 8)	/* Low Data Addr */
+#define RT5670_DSP_CLK_MASK		(0x3 << 6)
+#define RT5670_DSP_CLK_SFT		6
+#define RT5670_DSP_CLK_768K		(0x0 << 6)
+#define RT5670_DSP_CLK_384K		(0x1 << 6)
+#define RT5670_DSP_CLK_192K		(0x2 << 6)
+#define RT5670_DSP_CLK_96K		(0x3 << 6)
+#define RT5670_DSP_BUSY_MASK		(0x1 << 5)
+#define RT5670_DSP_RW_MASK		(0x1 << 4)
+#define RT5670_DSP_DL_MASK		(0x3 << 2)
+#define RT5670_DSP_DL_0			(0x0 << 2)
+#define RT5670_DSP_DL_1			(0x1 << 2)
+#define RT5670_DSP_DL_2			(0x2 << 2)
+#define RT5670_DSP_DL_3			(0x3 << 2)
+#define RT5670_DSP_I2C_AL_16		(0x1 << 1)
+#define RT5670_DSP_CMD_EN		(0x1)
+
+struct rt5670_dsp_param {
+	u16 cmd_fmt;
+	u16 addr;
+	u16 data;
+	u8 cmd;
+};
+
+#endif /* __RT5670_DSP_H__ */
+