ASoC: WM8804: Initial driver

The WM8804 is a high performance consumer mode S/PDIF transceiver with
support for 1 received channel and 1 transmitted channel.
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

sound/soc/codecs/Kconfig

@@ -56,6 +56,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_WM8750 if SND_SOC_I2C_AND_SPI
 	select SND_SOC_WM8753 if SND_SOC_I2C_AND_SPI
 	select SND_SOC_WM8776 if SND_SOC_I2C_AND_SPI
+	select SND_SOC_WM8804 if SND_SOC_I2C_AND_SPI
 	select SND_SOC_WM8900 if I2C
 	select SND_SOC_WM8903 if I2C
 	select SND_SOC_WM8904 if I2C
@@ -237,6 +238,9 @@ config SND_SOC_WM8753
 config SND_SOC_WM8776
 	tristate
 
+config SND_SOC_WM8804
+	tristate
+
 config SND_SOC_WM8900
 	tristate
 

sound/soc/codecs/Makefile

@@ -41,6 +41,7 @@ snd-soc-wm8741-objs := wm8741.o
 snd-soc-wm8750-objs := wm8750.o
 snd-soc-wm8753-objs := wm8753.o
 snd-soc-wm8776-objs := wm8776.o
+snd-soc-wm8804-objs := wm8804.o
 snd-soc-wm8900-objs := wm8900.o
 snd-soc-wm8903-objs := wm8903.o
 snd-soc-wm8904-objs := wm8904.o
@@ -114,6 +115,7 @@ obj-$(CONFIG_SND_SOC_WM8741)	+= snd-soc-wm8741.o
 obj-$(CONFIG_SND_SOC_WM8750)	+= snd-soc-wm8750.o
 obj-$(CONFIG_SND_SOC_WM8753)	+= snd-soc-wm8753.o
 obj-$(CONFIG_SND_SOC_WM8776)	+= snd-soc-wm8776.o
+obj-$(CONFIG_SND_SOC_WM8804)	+= snd-soc-wm8804.o
 obj-$(CONFIG_SND_SOC_WM8900)	+= snd-soc-wm8900.o
 obj-$(CONFIG_SND_SOC_WM8903)	+= snd-soc-wm8903.o
 obj-$(CONFIG_SND_SOC_WM8904)	+= snd-soc-wm8904.o

sound/soc/codecs/wm8804.h

+/*
+ * wm8804.h  --  WM8804 S/PDIF transceiver driver
+ *
+ * Copyright 2010 Wolfson Microelectronics plc
+ *
+ * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.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 _WM8804_H
+#define _WM8804_H
+
+/*
+ * Register values.
+ */
+#define WM8804_RST_DEVID1			0x00
+#define WM8804_DEVID2				0x01
+#define WM8804_DEVREV				0x02
+#define WM8804_PLL1				0x03
+#define WM8804_PLL2				0x04
+#define WM8804_PLL3				0x05
+#define WM8804_PLL4				0x06
+#define WM8804_PLL5				0x07
+#define WM8804_PLL6				0x08
+#define WM8804_SPDMODE				0x09
+#define WM8804_INTMASK				0x0A
+#define WM8804_INTSTAT				0x0B
+#define WM8804_SPDSTAT				0x0C
+#define WM8804_RXCHAN1				0x0D
+#define WM8804_RXCHAN2				0x0E
+#define WM8804_RXCHAN3				0x0F
+#define WM8804_RXCHAN4				0x10
+#define WM8804_RXCHAN5				0x11
+#define WM8804_SPDTX1				0x12
+#define WM8804_SPDTX2				0x13
+#define WM8804_SPDTX3				0x14
+#define WM8804_SPDTX4				0x15
+#define WM8804_SPDTX5				0x16
+#define WM8804_GPO0				0x17
+#define WM8804_GPO1				0x18
+#define WM8804_GPO2				0x1A
+#define WM8804_AIFTX				0x1B
+#define WM8804_AIFRX				0x1C
+#define WM8804_SPDRX1				0x1D
+#define WM8804_PWRDN				0x1E
+
+#define WM8804_REGISTER_COUNT			30
+#define WM8804_MAX_REGISTER			0x1E
+
+#define WM8804_TX_CLKSRC_MCLK			1
+#define WM8804_TX_CLKSRC_PLL			2
+
+#define WM8804_CLKOUT_SRC_CLK1			3
+#define WM8804_CLKOUT_SRC_OSCCLK		4
+
+#define WM8804_CLKOUT_DIV			1
+
+#endif  /* _WM8804_H */