[PATCH] ASoC WM8753 codec driver.

* [PATCH] ASoC WM8753 codec driver.
@ 2007-02-02 17:30 Liam Girdwood
  2007-02-02 18:05 ` Takashi Iwai
  0 siblings, 1 reply; 2+ messages in thread
From: Liam Girdwood @ 2007-02-02 17:30 UTC (permalink / raw)
  To: alsa-devel

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This patch adds ASoC support WM8753 dual interface codec.

Features:-

 o Full mixer support.
 o Dual DAI support. (one DAI can be configured for HiFi whilst the
other DAI can be used for GSM or BT voice simultaneously)
 o Dynamic Audio Power Management.
 o Fixed point PLL calculator. 

Signed-off-by: Graeme Gregory <gg@opensource.wolfsonmicro.com>
Signed-off-by: Seth Forshee <seth.forshee@gmail.com>
Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>


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diff -r 0f9c7c3b7657 soc/codecs/Kconfig

--- a/soc/codecs/Kconfig	Fri Feb 02 17:23:42 2007 +0100
+++ b/soc/codecs/Kconfig	Fri Feb 02 17:24:18 2007 +0000
@@ -10,6 +10,10 @@ config SND_SOC_WM8750
 	tristate
 	depends on SND_SOC
 
+config SND_SOC_WM8753
+	tristate
+	depends on SND_SOC
+
 config SND_SOC_WM9712
 	tristate
 	depends on SND_SOC
diff -r 0f9c7c3b7657 soc/codecs/Makefile
--- a/soc/codecs/Makefile	Fri Feb 02 17:23:42 2007 +0100
+++ b/soc/codecs/Makefile	Fri Feb 02 17:23:58 2007 +0000
@@ -1,9 +1,11 @@ snd-soc-ac97-objs := ac97.o
 snd-soc-ac97-objs := ac97.o
 snd-soc-wm8731-objs := wm8731.o
 snd-soc-wm8750-objs := wm8750.o
+snd-soc-wm8753-objs := wm8753.o
 snd-soc-wm9712-objs := wm9712.o
 
 obj-$(CONFIG_SND_SOC_AC97_CODEC)	+= snd-soc-ac97.o
 obj-$(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_WM9712)	+= snd-soc-wm9712.o
diff -r 0f9c7c3b7657 soc/codecs/wm8753.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/soc/codecs/wm8753.c	Fri Feb 02 17:20:51 2007 +0000
@@ -0,0 +1,1738 @@
+/*
+ * wm8753.c  --  WM8753 ALSA Soc Audio driver
+ *
+ * Copyright 2003 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood
+ *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ * Notes:
+ *  The WM8753 is a low power, high quality stereo codec with integrated PCM
+ *  codec designed for portable digital telephony applications.
+ *
+ * Dual DAI:-
+ *
+ * This driver support 2 DAI PCM's. This makes the default PCM available for
+ * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
+ * voice.
+ *
+ * Please note that the voice PCM can be connected directly to a Bluetooth
+ * codec or GSM modem and thus cannot be read or written to, although it is
+ * available to be configured with snd_hw_params(), etc and kcontrols in the
+ * normal alsa manner.
+ *
+ * Fast DAI switching:-
+ *
+ * The driver can now fast switch between the DAI configurations via a
+ * an alsa kcontrol. This allows the PCM to remain open.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/i2c.h>
+#include <linux/platform_device.h>
+#include <sound/driver.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+#include <sound/initval.h>
+#include <asm/div64.h>
+
+#include "wm8753.h"
+
+#define AUDIO_NAME "wm8753"
+#define WM8753_VERSION "0.16"
+
+/*
+ * Debug
+ */
+
+#define WM8753_DEBUG 0
+
+#ifdef WM8753_DEBUG
+#define dbg(format, arg...) \
+	printk(KERN_DEBUG AUDIO_NAME ": " format "\n" , ## arg)
+#else
+#define dbg(format, arg...) do {} while (0)
+#endif
+#define err(format, arg...) \
+	printk(KERN_ERR AUDIO_NAME ": " format "\n" , ## arg)
+#define info(format, arg...) \
+	printk(KERN_INFO AUDIO_NAME ": " format "\n" , ## arg)
+#define warn(format, arg...) \
+	printk(KERN_WARNING AUDIO_NAME ": " format "\n" , ## arg)
+
+static int caps_charge = 2000;
+module_param(caps_charge, int, 0);
+MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
+
+static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
+	unsigned int mode);
+
+/* codec private data */
+struct wm8753_priv {
+	unsigned int sysclk;
+	unsigned int pcmclk;
+};
+
+/*
+ * wm8753 register cache
+ * We can't read the WM8753 register space when we
+ * are using 2 wire for device control, so we cache them instead.
+ */
+static const u16 wm8753_reg[] = {
+	0x0008, 0x0000, 0x000a, 0x000a,
+	0x0033, 0x0000, 0x0007, 0x00ff,
+	0x00ff, 0x000f, 0x000f, 0x007b,
+	0x0000, 0x0032, 0x0000, 0x00c3,
+	0x00c3, 0x00c0, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0000, 0x0000, 0x0000, 0x0055,
+	0x0005, 0x0050, 0x0055, 0x0050,
+	0x0055, 0x0050, 0x0055, 0x0079,
+	0x0079, 0x0079, 0x0079, 0x0079,
+	0x0000, 0x0000, 0x0000, 0x0000,
+	0x0097, 0x0097, 0x0000, 0x0004,
+	0x0000, 0x0083, 0x0024, 0x01ba,
+	0x0000, 0x0083, 0x0024, 0x01ba,
+	0x0000, 0x0000
+};
+
+/*
+ * read wm8753 register cache
+ */
+static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec *codec,
+	unsigned int reg)
+{
+	u16 *cache = codec->reg_cache;
+	if (reg < 1 || reg > (ARRAY_SIZE(wm8753_reg) + 1))
+		return -1;
+	return cache[reg - 1];
+}
+
+/*
+ * write wm8753 register cache
+ */
+static inline void wm8753_write_reg_cache(struct snd_soc_codec *codec,
+	unsigned int reg, unsigned int value)
+{
+	u16 *cache = codec->reg_cache;
+	if (reg < 1 || reg > 0x3f)
+		return;
+	cache[reg - 1] = value;
+}
+
+/*
+ * write to the WM8753 register space
+ */
+static int wm8753_write(struct snd_soc_codec *codec, unsigned int reg,
+	unsigned int value)
+{
+	u8 data[2];
+
+	/* data is
+	 *   D15..D9 WM8753 register offset
+	 *   D8...D0 register data
+	 */
+	data[0] = (reg << 1) | ((value >> 8) & 0x0001);
+	data[1] = value & 0x00ff;
+
+	wm8753_write_reg_cache (codec, reg, value);
+	if (codec->hw_write(codec->control_data, data, 2) == 2)
+		return 0;
+	else
+		return -EIO;
+}
+
+#define wm8753_reset(c) wm8753_write(c, WM8753_RESET, 0)
+
+/*
+ * WM8753 Controls
+ */
+static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
+static const char *wm8753_base_filter[] =
+	{"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
+	"100Hz @ 8kHz", "200Hz @ 8kHz"};
+static const char *wm8753_treble[] = {"8kHz", "4kHz"};
+static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
+static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
+static const char *wm8753_3d_func[] = {"Capture", "Playback"};
+static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
+static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
+static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
+static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
+static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
+static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
+	"Line 1", "Line 2"};
+static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
+static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
+static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
+static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
+static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
+	"Right PGA"};
+static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
+	"Left + Right"};
+static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
+static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
+static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
+static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
+static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
+	"Analogue Mix Right", "Digital Mono Mix"};
+static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
+	"82Hz @ 8kHz", "170Hz @ 8kHz"};
+static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
+static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
+static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
+static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
+	"Channel Swap"};
+
+static const struct soc_enum wm8753_enum[] = {
+SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),		// 0
+SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),	// 1
+SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble), 	// 2
+SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),	// 3
+SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),	// 4
+SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),		// 5
+SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),			// 6
+SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),			// 7
+SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),		// 8
+SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),		// 9
+SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),	// 10
+SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),	// 11
+SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),	// 12
+SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),	// 13
+SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),	// 14
+SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),	// 15
+SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),// 16
+SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),	// 17
+SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),		// 18
+SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),		// 19
+SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),	// 20
+SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),	// 21
+SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),	// 22
+SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),		// 23
+SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),	// 24
+SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),	// 25
+SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode), // 26
+SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),	// 27
+};
+
+
+static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
+	int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
+
+	ucontrol->value.integer.value[0] = (mode & 0xc) >> 2;
+	return 0;
+}
+
+static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
+	struct snd_ctl_elem_value *ucontrol)
+{
+	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);
+	int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
+
+	if (((mode &0xc) >> 2) == ucontrol->value.integer.value[0])
+		return 0;
+
+	mode &= 0xfff3;
+	mode |= (ucontrol->value.integer.value[0] << 2);
+
+	wm8753_write(codec, WM8753_IOCTL, mode);
+	wm8753_set_dai_mode(codec, ucontrol->value.integer.value[0]);
+	return 1;
+}
+
+static const struct snd_kcontrol_new wm8753_snd_controls[] = {
+SOC_DOUBLE_R("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0),
+
+SOC_DOUBLE_R("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0),
+
+SOC_DOUBLE_R("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V, 0, 127, 0),
+SOC_DOUBLE_R("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0, 127, 0),
+
+SOC_SINGLE("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0),
+
+SOC_DOUBLE_R("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7, 1),
+SOC_DOUBLE_R("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4, 7, 1),
+SOC_DOUBLE_R("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7, 1),
+
+SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7, 1, 0),
+SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7, 1, 0),
+
+SOC_SINGLE("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1),
+SOC_SINGLE("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1),
+SOC_SINGLE("Mono Voice Playback Volume", WM8753_MOUTM2, 4, 7, 1),
+SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
+
+SOC_ENUM("Bass Boost", wm8753_enum[0]),
+SOC_ENUM("Bass Filter", wm8753_enum[1]),
+SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 7, 1),
+
+SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 7, 0),
+SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
+
+SOC_DOUBLE("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1),
+SOC_SINGLE("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1),
+
+SOC_DOUBLE_R("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0),
+SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
+SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
+
+SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
+SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
+SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
+
+SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
+SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
+SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
+SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
+SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
+SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
+SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
+SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
+SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
+SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
+
+SOC_ENUM("3D Function", wm8753_enum[5]),
+SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
+SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
+SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
+SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
+
+SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
+SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
+
+SOC_ENUM("De-emphasis", wm8753_enum[8]),
+SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
+SOC_ENUM("Playback Phase", wm8753_enum[10]),
+
+SOC_SINGLE("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0),
+SOC_SINGLE("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0),
+
+SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
+
+SOC_ENUM("ADC Data Select", wm8753_enum[27]),
+};
+
+/* add non dapm controls */
+static int wm8753_add_controls(struct snd_soc_codec *codec)
+{
+	int err, i;
+
+	for (i = 0; i < ARRAY_SIZE(wm8753_snd_controls); i++) {
+		err = snd_ctl_add(codec->card,
+				snd_soc_cnew(&wm8753_snd_controls[i],codec, NULL));
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
+/*
+ * _DAPM_ Controls
+ */
+
+/* Left Mixer */
+static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
+SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
+SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
+SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
+SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
+};
+
+/* Right mixer */
+static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
+SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
+SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
+SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
+SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
+};
+
+/* Mono mixer */
+static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
+SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
+SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
+SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
+SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
+SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
+};
+
+/* Mono 2 Mux */
+static const struct snd_kcontrol_new wm8753_mono2_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[17]);
+
+/* Out 3 Mux */
+static const struct snd_kcontrol_new wm8753_out3_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[18]);
+
+/* Out 4 Mux */
+static const struct snd_kcontrol_new wm8753_out4_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[19]);
+
+/* ADC Mono Mix */
+static const struct snd_kcontrol_new wm8753_adc_mono_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[22]);
+
+/* Record mixer */
+static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
+SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
+SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
+SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
+};
+
+/* Left ADC mux */
+static const struct snd_kcontrol_new wm8753_adc_left_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[21]);
+
+/* Right ADC mux */
+static const struct snd_kcontrol_new wm8753_adc_right_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[20]);
+
+/* MIC mux */
+static const struct snd_kcontrol_new wm8753_mic_mux_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[16]);
+
+/* ALC mixer */
+static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
+SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
+SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
+SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
+SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
+};
+
+/* Left Line mux */
+static const struct snd_kcontrol_new wm8753_line_left_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[14]);
+
+/* Right Line mux */
+static const struct snd_kcontrol_new wm8753_line_right_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[13]);
+
+/* Mono Line mux */
+static const struct snd_kcontrol_new wm8753_line_mono_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[12]);
+
+/* Line mux and mixer */
+static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[11]);
+
+/* Rx mux and mixer */
+static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[15]);
+
+/* Mic Selector Mux */
+static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
+SOC_DAPM_ENUM("Route", wm8753_enum[25]);
+
+static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
+SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
+SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
+	&wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
+SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
+SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
+SND_SOC_DAPM_OUTPUT("LOUT1"),
+SND_SOC_DAPM_OUTPUT("LOUT2"),
+SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
+	&wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
+SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
+SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
+SND_SOC_DAPM_OUTPUT("ROUT1"),
+SND_SOC_DAPM_OUTPUT("ROUT2"),
+SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
+	&wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
+SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
+SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
+SND_SOC_DAPM_OUTPUT("MONO1"),
+SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
+SND_SOC_DAPM_OUTPUT("MONO2"),
+SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
+SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
+SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
+SND_SOC_DAPM_OUTPUT("OUT3"),
+SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
+SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
+SND_SOC_DAPM_OUTPUT("OUT4"),
+SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
+	&wm8753_record_mixer_controls[0],
+	ARRAY_SIZE(wm8753_record_mixer_controls)),
+SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
+SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
+SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
+	&wm8753_adc_mono_controls),
+SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
+	&wm8753_adc_mono_controls),
+SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
+	&wm8753_adc_left_controls),
+SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
+	&wm8753_adc_right_controls),
+SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
+	&wm8753_mic_mux_controls),
+SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
+SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
+	&wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
+SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
+	&wm8753_line_left_controls),
+SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
+	&wm8753_line_right_controls),
+SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
+	&wm8753_line_mono_controls),
+SND_SOC_DAPM_MUX("Line Mixer", SND_SOC_NOPM, 0, 0,
+	&wm8753_line_mux_mix_controls),
+SND_SOC_DAPM_MUX("Rx Mixer", SND_SOC_NOPM, 0, 0,
+	&wm8753_rx_mux_mix_controls),
+SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
+SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
+SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
+	&wm8753_mic_sel_mux_controls),
+SND_SOC_DAPM_INPUT("LINE1"),
+SND_SOC_DAPM_INPUT("LINE2"),
+SND_SOC_DAPM_INPUT("RXP"),
+SND_SOC_DAPM_INPUT("RXN"),
+SND_SOC_DAPM_INPUT("ACIN"),
+SND_SOC_DAPM_OUTPUT("ACOP"),
+SND_SOC_DAPM_INPUT("MIC1N"),
+SND_SOC_DAPM_INPUT("MIC1"),
+SND_SOC_DAPM_INPUT("MIC2N"),
+SND_SOC_DAPM_INPUT("MIC2"),
+SND_SOC_DAPM_VMID("VREF"),
+};
+
+static const char *audio_map[][3] = {
+	/* left mixer */
+	{"Left Mixer", "Left Playback Switch", "Left DAC"},
+	{"Left Mixer", "Voice Playback Switch", "Voice DAC"},
+	{"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
+	{"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
+
+	/* right mixer */
+	{"Right Mixer", "Right Playback Switch", "Right DAC"},
+	{"Right Mixer", "Voice Playback Switch", "Voice DAC"},
+	{"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
+	{"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
+
+	/* mono mixer */
+	{"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
+	{"Mono Mixer", "Left Playback Switch", "Left DAC"},
+	{"Mono Mixer", "Right Playback Switch", "Right DAC"},
+	{"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
+	{"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
+
+	/* left out */
+	{"Left Out 1", NULL, "Left Mixer"},
+	{"Left Out 2", NULL, "Left Mixer"},
+	{"LOUT1", NULL, "Left Out 1"},
+	{"LOUT2", NULL, "Left Out 2"},
+
+	/* right out */
+	{"Right Out 1", NULL, "Right Mixer"},
+	{"Right Out 2", NULL, "Right Mixer"},
+	{"ROUT1", NULL, "Right Out 1"},
+	{"ROUT2", NULL, "Right Out 2"},
+
+	/* mono 1 out */
+	{"Mono Out 1", NULL, "Mono Mixer"},
+	{"MONO1", NULL, "Mono Out 1"},
+
+	/* mono 2 out */
+	{"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
+	{"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
+	{"Mono 2 Mux", "Left", "Left Mixer"},
+	{"Mono 2 Mux", "Right", "Right Mixer"},
+	{"Mono Out 2", NULL, "Mono 2 Mux"},
+	{"MONO2", NULL, "Mono Out 2"},
+
+	/* out 3 */
+	{"Out3 Left + Right", NULL, "Left Mixer"},
+	{"Out3 Left + Right", NULL, "Right Mixer"},
+	{"Out3 Mux", "VREF", "VREF"},
+	{"Out3 Mux", "Left + Right", "Out3 Left + Right"},
+	{"Out3 Mux", "ROUT2", "ROUT2"},
+	{"Out 3", NULL, "Out3 Mux"},
+	{"OUT3", NULL, "Out 3"},
+
+	/* out 4 */
+	{"Out4 Mux", "VREF", "VREF"},
+	{"Out4 Mux", "Capture ST", "Capture ST Mixer"},
+	{"Out4 Mux", "LOUT2", "LOUT2"},
+	{"Out 4", NULL, "Out4 Mux"},
+	{"OUT4", NULL, "Out 4"},
+
+	/* record mixer  */
+	{"Playback Mixer", "Left Capture Switch", "Left Mixer"},
+	{"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
+	{"Playback Mixer", "Right Capture Switch", "Right Mixer"},
+
+	/* Mic/SideTone Mux */
+	{"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
+	{"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
+	{"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
+	{"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
+
+	/* Capture Left Mux */
+	{"Capture Left Mux", "PGA", "Left Capture Volume"},
+	{"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
+	{"Capture Left Mux", "Line", "LINE1"},
+
+	/* Capture Right Mux */
+	{"Capture Right Mux", "PGA", "Right Capture Volume"},
+	{"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
+	{"Capture Right Mux", "Sidetone", "Capture ST Mixer"},
+
+	/* Mono Capture mixer-mux */
+	{"Capture Right Mixer", "Stereo", "Capture Right Mux"},
+	{"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
+	{"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
+	{"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
+	{"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
+	{"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
+	{"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
+	{"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
+	{"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
+
+	/* ADC */
+	{"Left ADC", NULL, "Capture Left Mixer"},
+	{"Right ADC", NULL, "Capture Right Mixer"},
+
+	/* Left Capture Volume */
+	{"Left Capture Volume", NULL, "ACIN"},
+
+	/* Right Capture Volume */
+	{"Right Capture Volume", NULL, "Mic 2 Volume"},
+
+	/* ALC Mixer */
+	{"ALC Mixer", "Line Capture Switch", "Line Mixer"},
+	{"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
+	{"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
+	{"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
+
+	/* Line Left Mux */
+	{"Line Left Mux", "Line 1", "LINE1"},
+	{"Line Left Mux", "Rx Mix", "Rx Mixer"},
+
+	/* Line Right Mux */
+	{"Line Right Mux", "Line 2", "LINE2"},
+	{"Line Right Mux", "Rx Mix", "Rx Mixer"},
+
+	/* Line Mono Mux */
+	{"Line Mono Mux", "Line Mix", "Line Mixer"},
+	{"Line Mono Mux", "Rx Mix", "Rx Mixer"},
+
+	/* Line Mixer/Mux */
+	{"Line Mixer", "Line 1 + 2", "LINE1"},
+	{"Line Mixer", "Line 1 - 2", "LINE1"},
+	{"Line Mixer", "Line 1 + 2", "LINE2"},
+	{"Line Mixer", "Line 1 - 2", "LINE2"},
+	{"Line Mixer", "Line 1", "LINE1"},
+	{"Line Mixer", "Line 2", "LINE2"},
+
+	/* Rx Mixer/Mux */
+	{"Rx Mixer", "RXP - RXN", "RXP"},
+	{"Rx Mixer", "RXP + RXN", "RXP"},
+	{"Rx Mixer", "RXP - RXN", "RXN"},
+	{"Rx Mixer", "RXP + RXN", "RXN"},
+	{"Rx Mixer", "RXP", "RXP"},
+	{"Rx Mixer", "RXN", "RXN"},
+
+	/* Mic 1 Volume */
+	{"Mic 1 Volume", NULL, "MIC1N"},
+	{"Mic 1 Volume", NULL, "Mic Selection Mux"},
+
+	/* Mic 2 Volume */
+	{"Mic 2 Volume", NULL, "MIC2N"},
+	{"Mic 2 Volume", NULL, "MIC2"},
+
+	/* Mic Selector Mux */
+	{"Mic Selection Mux", "Mic 1", "MIC1"},
+	{"Mic Selection Mux", "Mic 2", "MIC2N"},
+	{"Mic Selection Mux", "Mic 3", "MIC2"},
+
+	/* ACOP */
+	{"ACOP", NULL, "ALC Mixer"},
+
+	/* terminator */
+	{NULL, NULL, NULL},
+};
+
+static int wm8753_add_widgets(struct snd_soc_codec *codec)
+{
+	int i;
+
+	for(i = 0; i < ARRAY_SIZE(wm8753_dapm_widgets); i++) {
+		snd_soc_dapm_new_control(codec, &wm8753_dapm_widgets[i]);
+	}
+
+	/* set up the WM8753 audio map */
+	for(i = 0; audio_map[i][0] != NULL; i++) {
+		snd_soc_dapm_connect_input(codec, audio_map[i][0],
+			audio_map[i][1], audio_map[i][2]);
+	}
+
+	snd_soc_dapm_new_widgets(codec);
+	return 0;
+}
+
+/* PLL divisors */
+struct _pll_div {
+	u32 div2:1;
+	u32 n:4;
+	u32 k:24;
+};
+
+static struct _pll_div pll_div;
+
+/* The size in bits of the pll divide multiplied by 10
+ * to allow rounding later */
+#define FIXED_PLL_SIZE ((1 << 22) * 10)
+
+static void pll_factors(unsigned int target, unsigned int source)
+{
+	unsigned long long Kpart;
+	unsigned int K, Ndiv, Nmod;
+
+	Ndiv = target / source;
+	if (Ndiv < 6) {
+		source >>= 1;
+		pll_div.div2 = 1;
+		Ndiv = target / source;
+	} else
+		pll_div.div2 = 0;
+
+	if ((Ndiv < 6) || (Ndiv > 12))
+		printk(KERN_WARNING
+			"WM8753 N value outwith recommended range! N = %d\n",Ndiv);
+
+	pll_div.n = Ndiv;
+	Nmod = target % source;
+	Kpart = FIXED_PLL_SIZE * (long long)Nmod;
+
+	do_div(Kpart, source);
+
+	K = Kpart & 0xFFFFFFFF;
+
+	/* Check if we need to round */
+	if ((K % 10) >= 5)
+		K += 5;
+
+	/* Move down to proper range now rounding is done */
+	K /= 10;
+
+	pll_div.k = K;
+}
+
+static int wm8753_set_dai_pll(struct snd_soc_codec_dai *codec_dai,
+		int pll_id, unsigned int freq_in, unsigned int freq_out)
+{
+	u16 reg, enable;
+	int offset;
+	struct snd_soc_codec *codec = codec_dai->codec;
+
+	if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
+		return -ENODEV;
+
+	if (pll_id == WM8753_PLL1) {
+		offset = 0;
+		enable = 0x10;
+		reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xffef;
+	} else {
+		offset = 4;
+		enable = 0x8;
+		reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfff7;
+	}
+
+	if (!freq_in || !freq_out) {
+		/* disable PLL  */
+		wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
+		wm8753_write(codec, WM8753_CLOCK, reg);
+		return 0;
+	} else {
+
+        u16 value = 0;
+
+		pll_factors(freq_out * 8, freq_in);
+
+        /* set up N and K PLL divisor ratios */
+        /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
+        value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
+        wm8753_write(codec, WM8753_PLL1CTL2 + offset, value);
+
+        /* bits 8:0 = PLL_K[17:9] */
+        value = (pll_div.k & 0x03fe00) >> 9;
+        wm8753_write(codec, WM8753_PLL1CTL3 + offset, value);
+
+        /* bits 8:0 = PLL_K[8:0] */
+        value = pll_div.k & 0x0001ff;
+        wm8753_write(codec, WM8753_PLL1CTL4 + offset, value);
+
+        /* set PLL as input and enable */
+        wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
+        	(pll_div.div2 << 3));
+		wm8753_write(codec, WM8753_CLOCK, reg | enable);
+    }
+	return 0;
+}
+
+struct _coeff_div {
+	u32 mclk;
+	u32 rate;
+	u8 sr:5;
+	u8 usb:1;
+};
+
+/* codec hifi mclk (after PLL) clock divider coefficients */
+static const struct _coeff_div coeff_div[] = {
+	/* 8k */
+	{12288000, 8000, 0x6, 0x0},
+	{11289600, 8000, 0x16, 0x0},
+	{18432000, 8000, 0x7, 0x0},
+	{16934400, 8000, 0x17, 0x0},
+	{12000000, 8000, 0x6, 0x1},
+
+	/* 11.025k */
+	{11289600, 11025, 0x18, 0x0},
+	{16934400, 11025, 0x19, 0x0},
+	{12000000, 11025, 0x19, 0x1},
+
+	/* 16k */
+	{12288000, 16000, 0xa, 0x0},
+	{18432000, 16000, 0xb, 0x0},
+	{12000000, 16000, 0xa, 0x1},
+
+	/* 22.05k */
+	{11289600, 22050, 0x1a, 0x0},
+	{16934400, 22050, 0x1b, 0x0},
+	{12000000, 22050, 0x1b, 0x1},
+
+	/* 32k */
+	{12288000, 32000, 0xc, 0x0},
+	{18432000, 32000, 0xd, 0x0},
+	{12000000, 32000, 0xa, 0x1},
+
+	/* 44.1k */
+	{11289600, 44100, 0x10, 0x0},
+	{16934400, 44100, 0x11, 0x0},
+	{12000000, 44100, 0x11, 0x1},
+
+	/* 48k */
+	{12288000, 48000, 0x0, 0x0},
+	{18432000, 48000, 0x1, 0x0},
+	{12000000, 48000, 0x0, 0x1},
+
+	/* 88.2k */
+	{11289600, 88200, 0x1e, 0x0},
+	{16934400, 88200, 0x1f, 0x0},
+	{12000000, 88200, 0x1f, 0x1},
+
+	/* 96k */
+	{12288000, 96000, 0xe, 0x0},
+	{18432000, 96000, 0xf, 0x0},
+	{12000000, 96000, 0xe, 0x1},
+};
+
+static int get_coeff(int mclk, int rate)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
+		if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
+			return i;
+	}
+	return -EINVAL;
+}
+
+/*
+ * Clock after PLL and dividers
+ */
+static int wm8753_set_dai_sysclk(struct snd_soc_codec_dai *codec_dai,
+		int clk_id, unsigned int freq, int dir)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	struct wm8753_priv *wm8753 = codec->private_data;
+
+	switch (freq) {
+	case 11289600:
+	case 12000000:
+	case 12288000:
+	case 16934400:
+	case 18432000:
+		if (clk_id == WM8753_MCLK) {
+			wm8753->sysclk = freq;
+			return 0;
+		} else if (clk_id == WM8753_PCMCLK) {
+			wm8753->pcmclk = freq;
+			return 0;
+		}
+	}
+	return -EINVAL;
+}
+
+/*
+ * Set's ADC and Voice DAC format.
+ */
+static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01ec;
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		voice |= 0x0002;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		voice |= 0x0001;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		voice |= 0x0003;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		voice |= 0x0013;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	wm8753_write(codec, WM8753_PCM, voice);
+	return 0;
+}
+
+/*
+ * Set PCM DAI bit size and sample rate.
+ */
+static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_device *socdev = rtd->socdev;
+	struct snd_soc_codec *codec = socdev->codec;
+	struct wm8753_priv *wm8753 = codec->private_data;
+	u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3;
+	u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f;
+
+	/* bit size */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		voice |= 0x0004;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		voice |= 0x0008;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		voice |= 0x000c;
+		break;
+	}
+
+	/* sample rate */
+	if (params_rate(params) * 384 == wm8753->pcmclk)
+		srate |= 0x80;
+	wm8753_write(codec, WM8753_SRATE1, srate);
+
+	wm8753_write(codec, WM8753_PCM, voice);
+	return 0;
+}
+
+/*
+ * Set's PCM dai fmt and BCLK.
+ */
+static int wm8753_pcm_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 voice, ioctl;
+
+	voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x010f;
+	ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x015d;
+
+	/* set master/slave audio interface */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBS_CFS:
+		break;
+	case SND_SOC_DAIFMT_CBM_CFM:
+		ioctl |= 0x2;
+	case SND_SOC_DAIFMT_CBM_CFS:
+		voice |= 0x0040;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		voice |= 0x0090;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		voice |= 0x0080;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		voice |= 0x0010;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	wm8753_write(codec, WM8753_PCM, voice);
+	wm8753_write(codec, WM8753_IOCTL, ioctl);
+	return 0;
+}
+
+static int wm8753_set_dai_clkdiv(struct snd_soc_codec_dai *codec_dai,
+		int div_id, int div)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 reg;
+
+	switch (div_id) {
+	case WM8753_PCMDIV:
+		reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0x003f;
+		wm8753_write(codec, WM8753_CLOCK, reg | div);
+		break;
+	case WM8753_BCLKDIV:
+		reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x01c7;
+		wm8753_write(codec, WM8753_SRATE2, reg | div);
+		break;
+	case WM8753_VXCLKDIV:
+		reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x003f;
+		wm8753_write(codec, WM8753_SRATE2, reg | div);
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/*
+ * Set's HiFi DAC format.
+ */
+static int wm8753_hdac_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01e0;
+
+	/* interface format */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		hifi |= 0x0002;
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		hifi |= 0x0001;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		hifi |= 0x0003;
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		hifi |= 0x0013;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	wm8753_write(codec, WM8753_HIFI, hifi);
+	return 0;
+}
+
+/*
+ * Set's I2S DAI format.
+ */
+static int wm8753_i2s_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 ioctl, hifi;
+
+	hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x010f;
+	ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x00ae;
+
+	/* set master/slave audio interface */
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBS_CFS:
+		break;
+	case SND_SOC_DAIFMT_CBM_CFM:
+		ioctl |= 0x1;
+	case SND_SOC_DAIFMT_CBM_CFS:
+		hifi |= 0x0040;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* clock inversion */
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		hifi |= 0x0090;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		hifi |= 0x0080;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		hifi |= 0x0010;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	wm8753_write(codec, WM8753_HIFI, hifi);
+	wm8753_write(codec, WM8753_IOCTL, ioctl);
+	return 0;
+}
+
+/*
+ * Set PCM DAI bit size and sample rate.
+ */
+static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
+	struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_device *socdev = rtd->socdev;
+	struct snd_soc_codec *codec = socdev->codec;
+	struct wm8753_priv *wm8753 = codec->private_data;
+	u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0;
+	u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3;
+	int coeff;
+
+	/* is digital filter coefficient valid ? */
+	coeff = get_coeff(wm8753->sysclk, params_rate(params));
+	if (coeff < 0) {
+		printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
+		return coeff;
+	}
+	wm8753_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
+		coeff_div[coeff].usb);
+
+	/* bit size */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		hifi |= 0x0004;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+		hifi |= 0x0008;
+		break;
+	case SNDRV_PCM_FORMAT_S32_LE:
+		hifi |= 0x000c;
+		break;
+	}
+
+	wm8753_write(codec, WM8753_HIFI, hifi);
+	return 0;
+}
+
+static int wm8753_mode1v_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 clock;
+
+	/* set clk source as pcmclk */
+	clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
+	wm8753_write(codec, WM8753_CLOCK, clock);
+
+	if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
+		return -EINVAL;
+	return wm8753_pcm_set_dai_fmt(codec_dai, fmt);
+}
+
+static int wm8753_mode1h_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+		unsigned int fmt)
+{
+	if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
+		return -EINVAL;
+	return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
+}
+
+static int wm8753_mode2_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 clock;
+
+	/* set clk source as pcmclk */
+	clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
+	wm8753_write(codec, WM8753_CLOCK, clock);
+
+	if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
+		return -EINVAL;
+	return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
+}
+
+static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_codec_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	u16 clock;
+
+	/* set clk source as mclk */
+	clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
+	wm8753_write(codec, WM8753_CLOCK, clock | 0x4);
+
+	if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
+		return -EINVAL;
+	if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
+		return -EINVAL;
+	return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
+}
+
+static int wm8753_mute(struct snd_soc_codec_dai *dai, int mute)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7;
+
+	/* the digital mute covers the HiFi and Voice DAC's on the WM8753.
+	 * make sure we check if they are not both active when we mute */
+	if (mute && dai->id == 1) {
+		if (!wm8753_dai[WM8753_DAI_VOICE].playback.active ||
+			!wm8753_dai[WM8753_DAI_HIFI].playback.active)
+			wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
+	} else {
+		if (mute)
+			wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
+		else
+			wm8753_write(codec, WM8753_DAC, mute_reg);
+	}
+
+	return 0;
+}
+
+static int wm8753_dapm_event(struct snd_soc_codec *codec, int event)
+{
+	u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e;
+
+	switch (event) {
+	case SNDRV_CTL_POWER_D0: /* full On */
+		/* set vmid to 50k and unmute dac */
+		wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
+		break;
+	case SNDRV_CTL_POWER_D1: /* partial On */
+	case SNDRV_CTL_POWER_D2: /* partial On */
+		/* set vmid to 5k for quick power up */
+		wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
+		break;
+	case SNDRV_CTL_POWER_D3hot: /* Off, with power */
+		/* mute dac and set vmid to 500k, enable VREF */
+		wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
+		break;
+	case SNDRV_CTL_POWER_D3cold: /* Off, without power */
+		wm8753_write(codec, WM8753_PWR1, 0x0001);
+		break;
+	}
+	codec->dapm_state = event;
+	return 0;
+}
+
+#define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
+		SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
+		SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
+
+#define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
+	SNDRV_PCM_FMTBIT_S24_LE)
+
+/*
+ * The WM8753 supports upto 4 different and mutually exclusive DAI
+ * configurations. This gives 2 PCM's available for use, hifi and voice.
+ * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
+ * is connected between the wm8753 and a BT codec or GSM modem.
+ *
+ * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
+ * 2. Voice over HIFI DAI - HIFI disabled
+ * 3. Voice disabled - HIFI over HIFI
+ * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
+ */
+static const struct snd_soc_codec_dai wm8753_all_dai[] = {
+/* DAI HiFi mode 1 */
+{	.name = "WM8753 HiFi",
+	.id = 1,
+	.playback = {
+		.stream_name = "HiFi Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.capture = { /* dummy for fast DAI switching */
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.ops = {
+		.hw_params = wm8753_i2s_hw_params,},
+	.dai_ops = {
+		.digital_mute = wm8753_mute,
+		.set_fmt = wm8753_mode1h_set_dai_fmt,
+		.set_clkdiv = wm8753_set_dai_clkdiv,
+		.set_pll = wm8753_set_dai_pll,
+		.set_sysclk = wm8753_set_dai_sysclk,
+	},
+},
+/* DAI Voice mode 1 */
+{	.name = "WM8753 Voice",
+	.id = 1,
+	.playback = {
+		.stream_name = "Voice Playback",
+		.channels_min = 1,
+		.channels_max = 1,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.ops = {
+		.hw_params = wm8753_pcm_hw_params,},
+	.dai_ops = {
+		.digital_mute = wm8753_mute,
+		.set_fmt = wm8753_mode1v_set_dai_fmt,
+		.set_clkdiv = wm8753_set_dai_clkdiv,
+		.set_pll = wm8753_set_dai_pll,
+		.set_sysclk = wm8753_set_dai_sysclk,
+	},
+},
+/* DAI HiFi mode 2 - dummy */
+{	.name = "WM8753 HiFi",
+	.id = 2,
+},
+/* DAI Voice mode 2 */
+{	.name = "WM8753 Voice",
+	.id = 2,
+	.playback = {
+		.stream_name = "Voice Playback",
+		.channels_min = 1,
+		.channels_max = 1,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.ops = {
+		.hw_params = wm8753_pcm_hw_params,},
+	.dai_ops = {
+		.digital_mute = wm8753_mute,
+		.set_fmt = wm8753_mode2_set_dai_fmt,
+		.set_clkdiv = wm8753_set_dai_clkdiv,
+		.set_pll = wm8753_set_dai_pll,
+		.set_sysclk = wm8753_set_dai_sysclk,
+	},
+},
+/* DAI HiFi mode 3 */
+{	.name = "WM8753 HiFi",
+	.id = 3,
+	.playback = {
+		.stream_name = "HiFi Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.ops = {
+		.hw_params = wm8753_i2s_hw_params,},
+	.dai_ops = {
+		.digital_mute = wm8753_mute,
+		.set_fmt = wm8753_mode3_4_set_dai_fmt,
+		.set_clkdiv = wm8753_set_dai_clkdiv,
+		.set_pll = wm8753_set_dai_pll,
+		.set_sysclk = wm8753_set_dai_sysclk,
+	},
+},
+/* DAI Voice mode 3 - dummy */
+{	.name = "WM8753 Voice",
+	.id = 3,
+},
+/* DAI HiFi mode 4 */
+{	.name = "WM8753 HiFi",
+	.id = 4,
+	.playback = {
+		.stream_name = "HiFi Playback",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = WM8753_RATES,
+		.formats = WM8753_FORMATS,},
+	.ops = {
+		.hw_params = wm8753_i2s_hw_params,},
+	.dai_ops = {
+		.digital_mute = wm8753_mute,
+		.set_fmt = wm8753_mode3_4_set_dai_fmt,
+		.set_clkdiv = wm8753_set_dai_clkdiv,
+		.set_pll = wm8753_set_dai_pll,
+		.set_sysclk = wm8753_set_dai_sysclk,
+	},
+},
+/* DAI Voice mode 4 - dummy */
+{	.name = "WM8753 Voice",
+	.id = 4,
+},
+};
+
+struct snd_soc_codec_dai wm8753_dai[2];
+EXPORT_SYMBOL_GPL(wm8753_dai);
+
+static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode)
+{
+	if (mode < 4) {
+		wm8753_dai[0] = wm8753_all_dai[mode << 1];
+		wm8753_dai[1] = wm8753_all_dai[(mode << 1) + 1];
+	}
+	wm8753_dai[0].codec = codec;
+	wm8753_dai[1].codec = codec;
+}
+
+static void wm8753_work(struct work_struct *work)
+{
+	struct snd_soc_codec *codec =
+		container_of(work, struct snd_soc_codec, delayed_work.work);
+	wm8753_dapm_event(codec, codec->dapm_state);
+}
+
+static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->codec;
+
+	wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+	return 0;
+}
+
+static int wm8753_resume(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->codec;
+	int i;
+	u8 data[2];
+	u16 *cache = codec->reg_cache;
+
+	/* Sync reg_cache with the hardware */
+	for (i = 0; i < ARRAY_SIZE(wm8753_reg); i++) {
+		if (i + 1 == WM8753_RESET)
+			continue;
+		data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001);
+		data[1] = cache[i] & 0x00ff;
+		codec->hw_write(codec->control_data, data, 2);
+	}
+
+	wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3hot);
+
+	/* charge wm8753 caps */
+	if (codec->suspend_dapm_state == SNDRV_CTL_POWER_D0) {
+		wm8753_dapm_event(codec, SNDRV_CTL_POWER_D2);
+		codec->dapm_state = SNDRV_CTL_POWER_D0;
+		schedule_delayed_work(&codec->delayed_work, 
+			msecs_to_jiffies(caps_charge));
+	}
+
+	return 0;
+}
+
+/*
+ * initialise the WM8753 driver
+ * register the mixer and dsp interfaces with the kernel
+ */
+static int wm8753_init(struct snd_soc_device *socdev)
+{
+	struct snd_soc_codec *codec = socdev->codec;
+	int reg, ret = 0;
+
+	codec->name = "WM8753";
+	codec->owner = THIS_MODULE;
+	codec->read = wm8753_read_reg_cache;
+	codec->write = wm8753_write;
+	codec->dapm_event = wm8753_dapm_event;
+	codec->dai = wm8753_dai;
+	codec->num_dai = 2;
+	codec->reg_cache_size = ARRAY_SIZE(wm8753_reg);
+
+	codec->reg_cache =
+			kzalloc(sizeof(u16) * ARRAY_SIZE(wm8753_reg), GFP_KERNEL);
+	if (codec->reg_cache == NULL)
+		return -ENOMEM;
+	memcpy(codec->reg_cache, wm8753_reg,
+		sizeof(u16) * ARRAY_SIZE(wm8753_reg));
+	codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(wm8753_reg);
+	wm8753_set_dai_mode(codec, 0);
+
+	wm8753_reset(codec);
+
+	/* register pcms */
+	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+	if (ret < 0) {
+		printk(KERN_ERR "wm8753: failed to create pcms\n");
+		goto pcm_err;
+	}
+
+	/* charge output caps */
+	wm8753_dapm_event(codec, SNDRV_CTL_POWER_D2);
+	codec->dapm_state = SNDRV_CTL_POWER_D3hot;
+	schedule_delayed_work(&codec->delayed_work, 
+		msecs_to_jiffies(caps_charge));
+
+	/* set the update bits */
+	reg = wm8753_read_reg_cache(codec, WM8753_LDAC);
+	wm8753_write(codec, WM8753_LDAC, reg | 0x0100);
+	reg = wm8753_read_reg_cache(codec, WM8753_RDAC);
+	wm8753_write(codec, WM8753_RDAC, reg | 0x0100);
+	reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V);
+	wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100);
+	reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V);
+	wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100);
+	reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V);
+	wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100);
+	reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V);
+	wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100);
+	reg = wm8753_read_reg_cache(codec, WM8753_LINVOL);
+	wm8753_write(codec, WM8753_LINVOL, reg | 0x0100);
+	reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
+	wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
+
+	wm8753_add_controls(codec);
+	wm8753_add_widgets(codec);
+	ret = snd_soc_register_card(socdev);
+	if (ret < 0) {
+      	printk(KERN_ERR "wm8753: failed to register card\n");
+		goto card_err;
+    }
+	return ret;
+
+card_err:
+	snd_soc_free_pcms(socdev);
+	snd_soc_dapm_free(socdev);
+pcm_err:
+	kfree(codec->reg_cache);
+	return ret;
+}
+
+/* If the i2c layer weren't so broken, we could pass this kind of data
+   around */
+static struct snd_soc_device *wm8753_socdev;
+
+#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
+
+/*
+ * WM8753 2 wire address is determined by GPIO5
+ * state during powerup.
+ *    low  = 0x1a
+ *    high = 0x1b
+ */
+#define I2C_DRIVERID_WM8753 0xfefe /* liam -  need a proper id */
+
+static unsigned short normal_i2c[] = { 0, I2C_CLIENT_END };
+
+/* Magic definition of all other variables and things */
+I2C_CLIENT_INSMOD;
+
+static struct i2c_driver wm8753_i2c_driver;
+static struct i2c_client client_template;
+
+static int wm8753_codec_probe(struct i2c_adapter *adap, int addr, int kind)
+{
+	struct snd_soc_device *socdev = wm8753_socdev;
+	struct wm8753_setup_data *setup = socdev->codec_data;
+	struct snd_soc_codec *codec = socdev->codec;
+	struct i2c_client *i2c;
+	int ret;
+
+	if (addr != setup->i2c_address)
+		return -ENODEV;
+
+	client_template.adapter = adap;
+	client_template.addr = addr;
+
+	i2c = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
+	if (i2c == NULL){
+		kfree(codec);
+		return -ENOMEM;
+	}
+	memcpy(i2c, &client_template, sizeof(struct i2c_client));
+	i2c_set_clientdata(i2c, codec);
+	codec->control_data = i2c;
+
+	ret = i2c_attach_client(i2c);
+	if (ret < 0) {
+		err("failed to attach codec at addr %x\n", addr);
+		goto err;
+	}
+
+	ret = wm8753_init(socdev);
+	if (ret < 0) {
+		err("failed to initialise WM8753\n");
+		goto err;
+	}
+
+	return ret;
+
+err:
+	kfree(codec);
+	kfree(i2c);
+	return ret;
+}
+
+static int wm8753_i2c_detach(struct i2c_client *client)
+{
+	struct snd_soc_codec *codec = i2c_get_clientdata(client);
+	i2c_detach_client(client);
+	kfree(codec->reg_cache);
+	kfree(client);
+	return 0;
+}
+
+static int wm8753_i2c_attach(struct i2c_adapter *adap)
+{
+	return i2c_probe(adap, &addr_data, wm8753_codec_probe);
+}
+
+/* corgi i2c codec control layer */
+static struct i2c_driver wm8753_i2c_driver = {
+	.driver = {
+		.name = "WM8753 I2C Codec",
+		.owner = THIS_MODULE,
+	},
+	.id =             I2C_DRIVERID_WM8753,
+	.attach_adapter = wm8753_i2c_attach,
+	.detach_client =  wm8753_i2c_detach,
+	.command =        NULL,
+};
+
+static struct i2c_client client_template = {
+	.name =   "WM8753",
+	.driver = &wm8753_i2c_driver,
+};
+#endif
+
+static int wm8753_probe(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct wm8753_setup_data *setup;
+	struct snd_soc_codec *codec;
+	struct wm8753_priv *wm8753;
+	int ret = 0;
+
+	info("WM8753 Audio Codec %s", WM8753_VERSION);
+
+	setup = socdev->codec_data;
+	codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
+	if (codec == NULL)
+		return -ENOMEM;
+
+	wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
+	if (wm8753 == NULL) {
+		kfree(codec);
+		return -ENOMEM;
+	}
+
+	codec->private_data = wm8753;
+	socdev->codec = codec;
+	mutex_init(&codec->mutex);
+	INIT_LIST_HEAD(&codec->dapm_widgets);
+	INIT_LIST_HEAD(&codec->dapm_paths);
+	wm8753_socdev = socdev;
+	INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
+	
+#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
+	if (setup->i2c_address) {
+		normal_i2c[0] = setup->i2c_address;
+		codec->hw_write = (hw_write_t)i2c_master_send;
+		ret = i2c_add_driver(&wm8753_i2c_driver);
+		if (ret != 0)
+			printk(KERN_ERR "can't add i2c driver");
+	}
+#else
+		/* Add other interfaces here */
+#endif
+	return ret;
+}
+
+/*
+ * This function forces any delayed work to be queued and run.
+ */
+static int run_delayed_work(struct delayed_work *dwork)
+{
+	int ret;
+
+	/* cancel any work waiting to be queued. */
+	ret = cancel_delayed_work(dwork);
+
+	/* if there was any work waiting then we run it now and
+	 * wait for it's completion */
+	if (ret) {
+		schedule_delayed_work(dwork, 0);
+		flush_scheduled_work();
+	}
+	return ret;
+}
+
+/* power down chip */
+static int wm8753_remove(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec = socdev->codec;
+
+	if (codec->control_data)
+		wm8753_dapm_event(codec, SNDRV_CTL_POWER_D3cold);
+	run_delayed_work(&codec->delayed_work);
+	snd_soc_free_pcms(socdev);
+	snd_soc_dapm_free(socdev);
+#if defined (CONFIG_I2C) || defined (CONFIG_I2C_MODULE)
+	i2c_del_driver(&wm8753_i2c_driver);
+#endif
+	kfree(codec->private_data);
+	kfree(codec);
+
+	return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_wm8753 = {
+	.probe = 	wm8753_probe,
+	.remove = 	wm8753_remove,
+	.suspend = 	wm8753_suspend,
+	.resume =	wm8753_resume,
+};
+
+EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753);
+
+MODULE_DESCRIPTION("ASoC WM8753 driver");
+MODULE_AUTHOR("Liam Girdwood");
+MODULE_LICENSE("GPL");
diff -r 0f9c7c3b7657 soc/codecs/wm8753.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/soc/codecs/wm8753.h	Wed Jan 31 16:43:17 2007 +0000
@@ -0,0 +1,126 @@
+/*
+ * wm8753.h  --  audio driver for WM8753
+ *
+ * Copyright 2003 Wolfson Microelectronics PLC.
+ * Author: Liam Girdwood
+ *         liam.girdwood@wolfsonmicro.com or linux@wolfsonmicro.com
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#ifndef _WM8753_H
+#define _WM8753_H
+
+/* WM8753 register space */
+
+#define WM8753_DAC		0x01
+#define WM8753_ADC		0x02
+#define WM8753_PCM		0x03
+#define WM8753_HIFI		0x04
+#define WM8753_IOCTL	0x05
+#define WM8753_SRATE1	0x06
+#define WM8753_SRATE2	0x07
+#define WM8753_LDAC		0x08
+#define WM8753_RDAC		0x09
+#define WM8753_BASS		0x0a
+#define WM8753_TREBLE	0x0b
+#define WM8753_ALC1		0x0c
+#define WM8753_ALC2		0x0d
+#define WM8753_ALC3		0x0e
+#define WM8753_NGATE	0x0f
+#define WM8753_LADC		0x10
+#define WM8753_RADC		0x11
+#define WM8753_ADCTL1	0x12
+#define WM8753_3D		0x13
+#define WM8753_PWR1		0x14
+#define WM8753_PWR2		0x15
+#define WM8753_PWR3		0x16
+#define WM8753_PWR4		0x17
+#define WM8753_ID		0x18
+#define WM8753_INTPOL	0x19
+#define WM8753_INTEN	0x1a
+#define WM8753_GPIO1	0x1b
+#define WM8753_GPIO2	0x1c
+#define WM8753_RESET	0x1f
+#define WM8753_RECMIX1	0x20
+#define WM8753_RECMIX2	0x21
+#define WM8753_LOUTM1	0x22
+#define WM8753_LOUTM2	0x23
+#define WM8753_ROUTM1	0x24
+#define WM8753_ROUTM2	0x25
+#define WM8753_MOUTM1	0x26
+#define WM8753_MOUTM2	0x27
+#define WM8753_LOUT1V	0x28
+#define WM8753_ROUT1V	0x29
+#define WM8753_LOUT2V	0x2a
+#define WM8753_ROUT2V	0x2b
+#define WM8753_MOUTV	0x2c
+#define WM8753_OUTCTL	0x2d
+#define WM8753_ADCIN	0x2e
+#define WM8753_INCTL1	0x2f
+#define WM8753_INCTL2	0x30
+#define WM8753_LINVOL	0x31
+#define WM8753_RINVOL	0x32
+#define WM8753_MICBIAS	0x33
+#define WM8753_CLOCK	0x34
+#define WM8753_PLL1CTL1	0x35
+#define WM8753_PLL1CTL2	0x36
+#define WM8753_PLL1CTL3	0x37
+#define WM8753_PLL1CTL4	0x38
+#define WM8753_PLL2CTL1	0x39
+#define WM8753_PLL2CTL2	0x3a
+#define WM8753_PLL2CTL3	0x3b
+#define WM8753_PLL2CTL4	0x3c
+#define WM8753_BIASCTL	0x3d
+#define WM8753_ADCTL2	0x3f
+
+struct wm8753_setup_data {
+	unsigned short i2c_address;
+};
+
+#define WM8753_PLL1			0
+#define WM8753_PLL2			1
+
+/* clock inputs */
+#define WM8753_MCLK			0
+#define WM8753_PCMCLK		1
+
+/* clock divider id's */
+#define WM8753_PCMDIV		0
+#define WM8753_BCLKDIV		1
+#define WM8753_VXCLKDIV		2
+
+/* PCM clock dividers */
+#define WM8753_PCM_DIV_1	(0 << 6)
+#define WM8753_PCM_DIV_3	(2 << 6)
+#define WM8753_PCM_DIV_5_5	(3 << 6)
+#define WM8753_PCM_DIV_2	(4 << 6)
+#define WM8753_PCM_DIV_4	(5 << 6)
+#define WM8753_PCM_DIV_6	(6 << 6)
+#define WM8753_PCM_DIV_8	(7 << 6)
+
+/* BCLK clock dividers */
+#define WM8753_BCLK_DIV_1	(0 << 3)
+#define WM8753_BCLK_DIV_2	(1 << 3)
+#define WM8753_BCLK_DIV_4	(2 << 3)
+#define WM8753_BCLK_DIV_8	(3 << 3)
+#define WM8753_BCLK_DIV_16	(4 << 3)
+
+/* VXCLK clock dividers */
+#define WM8753_VXCLK_DIV_1	(0 << 6)
+#define WM8753_VXCLK_DIV_2	(1 << 6)
+#define WM8753_VXCLK_DIV_4	(2 << 6)
+#define WM8753_VXCLK_DIV_8	(3 << 6)
+#define WM8753_VXCLK_DIV_16	(4 << 6)
+
+#define WM8753_DAI_HIFI		0
+#define WM8753_DAI_VOICE	1
+
+extern struct snd_soc_codec_dai wm8753_dai[2];
+extern struct snd_soc_codec_device soc_codec_dev_wm8753;
+
+#endif

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