ALSA: ASoC: Add WM8900 CODEC driver

The WM8900 is designed for portable multimedia applications requiring
low power consumption, high performance audio and a compact form factor
providing:

 - 24 bit stereo ADC and DAC
 - Microphone and line inputs
 - Line outputs
 - Class G headphone amplifier

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

sound/soc/codecs/Kconfig

@@ -8,6 +8,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM8731
 	select SND_SOC_WM8750
 	select SND_SOC_WM8753
+	select SND_SOC_WM8900
 	select SND_SOC_WM8990
 	select SND_SOC_CS4270
 	select SND_SOC_TLV320AIC26
@@ -46,6 +47,9 @@ config SND_SOC_WM8750
 config SND_SOC_WM8753
 	tristate
 
+config SND_SOC_WM8900
+	tristate
+
 config SND_SOC_WM8990
 	tristate
 

sound/soc/codecs/Makefile

@@ -6,6 +6,7 @@ snd-soc-wm8510-objs := wm8510.o
 snd-soc-wm8731-objs := wm8731.o
 snd-soc-wm8750-objs := wm8750.o
 snd-soc-wm8753-objs := wm8753.o
+snd-soc-wm8900-objs := wm8900.o
 snd-soc-wm8990-objs := wm8990.o
 snd-soc-wm9712-objs := wm9712.o
 snd-soc-wm9713-objs := wm9713.o
@@ -21,6 +22,7 @@ obj-$(CONFIG_SND_SOC_WM8510)	+= snd-soc-wm8510.o
 obj-$(CONFIG_SND_SOC_WM8731)	+= snd-soc-wm8731.o
 obj-$(CONFIG_SND_SOC_WM8750)	+= snd-soc-wm8750.o
 obj-$(CONFIG_SND_SOC_WM8753)	+= snd-soc-wm8753.o
+obj-$(CONFIG_SND_SOC_WM8900)	+= snd-soc-wm8900.o
 obj-$(CONFIG_SND_SOC_WM8990)	+= snd-soc-wm8990.o
 obj-$(CONFIG_SND_SOC_WM9712)	+= snd-soc-wm9712.o
 obj-$(CONFIG_SND_SOC_WM9713)	+= snd-soc-wm9713.o

sound/soc/codecs/wm8900.h

@@ -0,0 +1,64 @@
+/*
+ * wm8900.h  --  WM890 Soc Audio driver
+ *
+ * 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 _WM8900_H
+#define _WM8900_H
+
+#define WM8900_FLL 1
+
+#define WM8900_BCLK_DIV   1
+#define WM8900_ADC_CLKDIV 2
+#define WM8900_DAC_CLKDIV 3
+#define WM8900_ADC_LRCLK  4
+#define WM8900_DAC_LRCLK  5
+#define WM8900_OPCLK_DIV  6
+#define WM8900_LRCLK_MODE 7
+
+#define WM8900_BCLK_DIV_1   0x00
+#define WM8900_BCLK_DIV_1_5 0x02
+#define WM8900_BCLK_DIV_2   0x04
+#define WM8900_BCLK_DIV_3   0x06
+#define WM8900_BCLK_DIV_4   0x08
+#define WM8900_BCLK_DIV_5_5 0x0a
+#define WM8900_BCLK_DIV_6   0x0c
+#define WM8900_BCLK_DIV_8   0x0e
+#define WM8900_BCLK_DIV_11  0x10
+#define WM8900_BCLK_DIV_12  0x12
+#define WM8900_BCLK_DIV_16  0x14
+#define WM8900_BCLK_DIV_22  0x16
+#define WM8900_BCLK_DIV_24  0x18
+#define WM8900_BCLK_DIV_32  0x1a
+#define WM8900_BCLK_DIV_44  0x1c
+#define WM8900_BCLK_DIV_48  0x1e
+
+#define WM8900_ADC_CLKDIV_1   0x00
+#define WM8900_ADC_CLKDIV_1_5 0x20
+#define WM8900_ADC_CLKDIV_2   0x40
+#define WM8900_ADC_CLKDIV_3   0x60
+#define WM8900_ADC_CLKDIV_4   0x80
+#define WM8900_ADC_CLKDIV_5_5 0xa0
+#define WM8900_ADC_CLKDIV_6   0xc0
+
+#define WM8900_DAC_CLKDIV_1   0x00
+#define WM8900_DAC_CLKDIV_1_5 0x04
+#define WM8900_DAC_CLKDIV_2   0x08
+#define WM8900_DAC_CLKDIV_3   0x0c
+#define WM8900_DAC_CLKDIV_4   0x10
+#define WM8900_DAC_CLKDIV_5_5 0x14
+#define WM8900_DAC_CLKDIV_6   0x18
+
+#define WM8900_
+
+struct wm8900_setup_data {
+	unsigned short i2c_address;
+};
+
+extern struct snd_soc_dai wm8900_dai;
+extern struct snd_soc_codec_device soc_codec_dev_wm8900;
+
+#endif