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authorlars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-05-12 23:12:41 +0000
committerlars <lars@3c298f89-4303-0410-b956-a3cf2f4a3e73>2010-05-12 23:12:41 +0000
commit29ec26ff1bdcb281b6331f4a88b3813fb8ed0c75 (patch)
tree402c05359e50ec9e57f35311ae676c231145df39 /target/linux/xburst/patches-2.6.34/060-jzcodec.patch
parent8f059e046aa981835622446c16530981d5a14909 (diff)
[xburst] Add 2.6.34 patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21438 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/xburst/patches-2.6.34/060-jzcodec.patch')
-rw-r--r--target/linux/xburst/patches-2.6.34/060-jzcodec.patch602
1 files changed, 602 insertions, 0 deletions
diff --git a/target/linux/xburst/patches-2.6.34/060-jzcodec.patch b/target/linux/xburst/patches-2.6.34/060-jzcodec.patch
new file mode 100644
index 000000000..1a380ba7d
--- /dev/null
+++ b/target/linux/xburst/patches-2.6.34/060-jzcodec.patch
@@ -0,0 +1,602 @@
+From 3ff79323c50cc67df122c8f02670ff5483ea7ebc Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 24 Apr 2010 12:32:57 +0200
+Subject: [PATCH] Add jz4740 codec driver
+
+---
+ sound/soc/codecs/Kconfig | 7 +
+ sound/soc/codecs/Makefile | 2 +
+ sound/soc/codecs/jzcodec.c | 513 ++++++++++++++++++++++++++++++++++++++++++++
+ sound/soc/codecs/jzcodec.h | 22 ++
+ 4 files changed, 544 insertions(+), 0 deletions(-)
+ create mode 100644 sound/soc/codecs/jzcodec.c
+ create mode 100644 sound/soc/codecs/jzcodec.h
+
+diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
+index 1743d56..b25598a 100644
+--- a/sound/soc/codecs/Kconfig
++++ b/sound/soc/codecs/Kconfig
+@@ -260,6 +260,13 @@ config SND_SOC_WM9712
+ config SND_SOC_WM9713
+ tristate
+
++config SND_SOC_JZCODEC
++ tristate "JZ4720/JZ4740 SoC internal codec"
++ depends on SND_SOC && SOC_JZ4740
++ help
++ Say Y if you want to use internal codec on Ingenic JZ4720/JZ4740 based
++ boards.
++
+ # Amp
+ config SND_SOC_MAX9877
+ tristate
+diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
+index dd5ce6d..3f6ce05 100644
+--- a/sound/soc/codecs/Makefile
++++ b/sound/soc/codecs/Makefile
+@@ -54,6 +54,7 @@ snd-soc-wm9705-objs := wm9705.o
+ snd-soc-wm9712-objs := wm9712.o
+ snd-soc-wm9713-objs := wm9713.o
+ snd-soc-wm-hubs-objs := wm_hubs.o
++snd-soc-jzcodec-objs := jzcodec.o
+
+ # Amp
+ snd-soc-max9877-objs := max9877.o
+@@ -116,6 +117,7 @@ obj-$(CONFIG_SND_SOC_WM9705) += snd-soc-wm9705.o
+ obj-$(CONFIG_SND_SOC_WM9712) += snd-soc-wm9712.o
+ obj-$(CONFIG_SND_SOC_WM9713) += snd-soc-wm9713.o
+ obj-$(CONFIG_SND_SOC_WM_HUBS) += snd-soc-wm-hubs.o
++obj-$(CONFIG_SND_SOC_JZCODEC) += snd-soc-jzcodec.o
+
+ # Amp
+ obj-$(CONFIG_SND_SOC_MAX9877) += snd-soc-max9877.o
+diff --git a/sound/soc/codecs/jzcodec.c b/sound/soc/codecs/jzcodec.c
+new file mode 100644
+index 0000000..f960d46
+--- /dev/null
++++ b/sound/soc/codecs/jzcodec.c
+@@ -0,0 +1,513 @@
++/*
++ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
++ *
++ * 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.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++
++#include <linux/delay.h>
++
++#include <sound/core.h>
++#include <sound/pcm.h>
++#include <sound/pcm_params.h>
++#include <sound/initval.h>
++#include <sound/soc-dapm.h>
++#include <sound/soc.h>
++
++#define JZ_REG_CODEC_1 0x0
++#define JZ_REG_CODEC_2 0x1
++
++#define JZ_CODEC_1_LINE_ENABLE BIT(29)
++#define JZ_CODEC_1_MIC_ENABLE BIT(28)
++#define JZ_CODEC_1_SW1_ENABLE BIT(27)
++#define JZ_CODEC_1_ADC_ENABLE BIT(26)
++#define JZ_CODEC_1_SW2_ENABLE BIT(25)
++#define JZ_CODEC_1_DAC_ENABLE BIT(24)
++#define JZ_CODEC_1_VREF_DISABLE BIT(20)
++#define JZ_CODEC_1_VREF_AMP_DISABLE BIT(19)
++#define JZ_CODEC_1_VREF_PULL_DOWN BIT(18)
++#define JZ_CODEC_1_VREF_LOW_CURRENT BIT(17)
++#define JZ_CODEC_1_VREF_HIGH_CURRENT BIT(16)
++#define JZ_CODEC_1_HEADPHONE_DISABLE BIT(14)
++#define JZ_CODEC_1_HEADPHONE_AMP_CHANGE_ANY BIT(13)
++#define JZ_CODEC_1_HEADPHONE_CHANGE BIT(12)
++#define JZ_CODEC_1_HEADPHONE_PULL_DOWN_M BIT(11)
++#define JZ_CODEC_1_HEADPHONE_PULL_DOWN_R BIT(10)
++#define JZ_CODEC_1_HEADPHONE_POWER_DOWN_M BIT(9)
++#define JZ_CODEC_1_HEADPHONE_POWER_DOWN BIT(8)
++#define JZ_CODEC_1_SUSPEND BIT(1)
++#define JZ_CODEC_1_RESET BIT(0)
++
++#define JZ_CODEC_1_LINE_ENABLE_OFFSET 29
++#define JZ_CODEC_1_MIC_ENABLE_OFFSET 28
++#define JZ_CODEC_1_SW1_ENABLE_OFFSET 27
++#define JZ_CODEC_1_ADC_ENABLE_OFFSET 26
++#define JZ_CODEC_1_SW2_ENABLE_OFFSET 25
++#define JZ_CODEC_1_DAC_ENABLE_OFFSET 24
++#define JZ_CODEC_1_HEADPHONE_DISABLE_OFFSET 14
++#define JZ_CODEC_1_HEADPHONE_POWER_DOWN_OFFSET 8
++
++#define JZ_CODEC_2_INPUT_VOLUME_MASK 0x1f0000
++#define JZ_CODEC_2_SAMPLE_RATE_MASK 0x000f00
++#define JZ_CODEC_2_MIC_BOOST_GAIN_MASK 0x000030
++#define JZ_CODEC_2_HEADPHONE_VOLUME_MASK 0x000003
++
++#define JZ_CODEC_2_INPUT_VOLUME_OFFSET 16
++#define JZ_CODEC_2_SAMPLE_RATE_OFFSET 8
++#define JZ_CODEC_2_MIC_BOOST_GAIN_OFFSET 4
++#define JZ_CODEC_2_HEADPHONE_VOLUME_OFFSET 0
++
++struct jz_codec {
++ void __iomem *base;
++ struct resource *mem;
++
++ uint32_t reg_cache[2];
++ struct snd_soc_codec codec;
++};
++
++static inline struct jz_codec *codec_to_jz(struct snd_soc_codec *codec)
++{
++ return container_of(codec, struct jz_codec, codec);
++}
++
++static unsigned int jz_codec_read(struct snd_soc_codec *codec, unsigned int reg)
++{
++ struct jz_codec *jz_codec = codec_to_jz(codec);
++ return readl(jz_codec->base + (reg << 2));
++}
++
++static int jz_codec_write(struct snd_soc_codec *codec, unsigned int reg,
++unsigned int val)
++{
++ struct jz_codec *jz_codec = codec_to_jz(codec);
++ jz_codec->reg_cache[reg] = val;
++
++ writel(val, jz_codec->base + (reg << 2));
++ return 0;
++}
++
++static const struct snd_kcontrol_new jz_codec_controls[] = {
++ SOC_SINGLE("Master Playback Volume", JZ_REG_CODEC_2,
++ JZ_CODEC_2_HEADPHONE_VOLUME_OFFSET, 3, 0),
++ SOC_SINGLE("Capture Volume", JZ_REG_CODEC_2,
++ JZ_CODEC_2_INPUT_VOLUME_OFFSET, 31, 0),
++ SOC_SINGLE("Master Playback Switch", JZ_REG_CODEC_1,
++ JZ_CODEC_1_HEADPHONE_DISABLE_OFFSET, 1, 1),
++ SOC_SINGLE("Mic Capture Volume", JZ_REG_CODEC_2,
++ JZ_CODEC_2_MIC_BOOST_GAIN_OFFSET, 3, 0),
++};
++
++static const struct snd_kcontrol_new jz_codec_output_controls[] = {
++ SOC_DAPM_SINGLE("Bypass Switch", JZ_REG_CODEC_1,
++ JZ_CODEC_1_SW1_ENABLE_OFFSET, 1, 0),
++ SOC_DAPM_SINGLE("DAC Switch", JZ_REG_CODEC_1,
++ JZ_CODEC_1_SW2_ENABLE_OFFSET, 1, 0),
++};
++
++static const struct snd_kcontrol_new jz_codec_input_controls[] = {
++ SOC_DAPM_SINGLE("Line Capture Switch", JZ_REG_CODEC_1,
++ JZ_CODEC_1_LINE_ENABLE_OFFSET, 1, 0),
++ SOC_DAPM_SINGLE("Mic Capture Switch", JZ_REG_CODEC_1,
++ JZ_CODEC_1_MIC_ENABLE_OFFSET, 1, 0),
++};
++
++static const struct snd_soc_dapm_widget jz_codec_dapm_widgets[] = {
++ SND_SOC_DAPM_ADC("ADC", "Capture", JZ_REG_CODEC_1,
++ JZ_CODEC_1_ADC_ENABLE_OFFSET, 0),
++ SND_SOC_DAPM_DAC("DAC", "Playback", JZ_REG_CODEC_1,
++ JZ_CODEC_1_DAC_ENABLE_OFFSET, 0),
++
++ SND_SOC_DAPM_MIXER("Output Mixer", JZ_REG_CODEC_1,
++ JZ_CODEC_1_HEADPHONE_POWER_DOWN_OFFSET, 1,
++ jz_codec_output_controls,
++ ARRAY_SIZE(jz_codec_output_controls)),
++
++ SND_SOC_DAPM_MIXER_NAMED_CTL("Input Mixer", SND_SOC_NOPM, 0, 0,
++ jz_codec_input_controls,
++ ARRAY_SIZE(jz_codec_input_controls)),
++ SND_SOC_DAPM_MIXER("Line Input", SND_SOC_NOPM, 0, 0, NULL, 0),
++
++ SND_SOC_DAPM_OUTPUT("LOUT"),
++ SND_SOC_DAPM_OUTPUT("ROUT"),
++
++ SND_SOC_DAPM_INPUT("MIC"),
++ SND_SOC_DAPM_INPUT("LIN"),
++ SND_SOC_DAPM_INPUT("RIN"),
++};
++
++static const struct snd_soc_dapm_route jz_codec_dapm_routes[] = {
++
++ {"Line Input", NULL, "LIN"},
++ {"Line Input", NULL, "RIN"},
++
++ {"Input Mixer", "Line Capture Switch", "Line Input"},
++ {"Input Mixer", "Mic Capture Switch", "MIC"},
++
++ {"ADC", NULL, "Input Mixer"},
++
++ {"Output Mixer", "Bypass Switch", "Input Mixer"},
++ {"Output Mixer", "DAC Switch", "DAC"},
++
++ {"LOUT", NULL, "Output Mixer"},
++ {"ROUT", NULL, "Output Mixer"},
++};
++
++static int jz_codec_hw_params(struct snd_pcm_substream *substream, struct
++snd_pcm_hw_params *params, struct snd_soc_dai *dai)
++{
++ uint32_t val;
++ struct snd_soc_pcm_runtime *rtd = substream->private_data;
++ struct snd_soc_device *socdev = rtd->socdev;
++ struct snd_soc_codec *codec = socdev->card->codec;
++
++ switch (params_format(params)) {
++ case SNDRV_PCM_FORMAT_S8:
++ case SNDRV_PCM_FORMAT_S16_LE:
++ case SNDRV_PCM_FORMAT_S18_3LE:
++ break;
++ default:
++ return -EINVAL;
++ break;
++ }
++
++ switch (params_rate(params)) {
++ case 8000:
++ val = 0;
++ break;
++ case 11025:
++ val = 1;
++ break;
++ case 12000:
++ val = 2;
++ break;
++ case 16000:
++ val = 3;
++ break;
++ case 22050:
++ val = 4;
++ break;
++ case 24000:
++ val = 5;
++ break;
++ case 32000:
++ val = 6;
++ break;
++ case 44100:
++ val = 7;
++ break;
++ case 48000:
++ val = 8;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ val <<= JZ_CODEC_2_SAMPLE_RATE_OFFSET;
++
++ snd_soc_update_bits(codec, JZ_REG_CODEC_2,
++ JZ_CODEC_2_SAMPLE_RATE_MASK, val);
++
++ return 0;
++}
++
++static int jz_codec_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
++{
++ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
++ case SND_SOC_DAIFMT_CBM_CFM:
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
++ case SND_SOC_DAIFMT_I2S:
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
++ case SND_SOC_DAIFMT_NB_NF:
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ return 0;
++}
++
++static int jz_codec_set_sysclk(struct snd_soc_dai *codec_dai,
++ int clk_id, unsigned int freq, int dir)
++{
++ return 0;
++}
++
++
++static struct snd_soc_dai_ops jz_codec_dai_ops = {
++ .hw_params = jz_codec_hw_params,
++ .set_fmt = jz_codec_set_fmt,
++/* .set_clkdiv = jz_codec_set_clkdiv,*/
++ .set_sysclk = jz_codec_set_sysclk,
++};
++
++struct snd_soc_dai jz_codec_dai = {
++ .name = "jz-codec",
++ .playback = {
++ .stream_name = "Playback",
++ .channels_min = 2,
++ .channels_max = 2,
++ .rates = SNDRV_PCM_RATE_8000_44100,
++ .formats = SNDRV_PCM_FMTBIT_S16_LE,
++ },
++ .capture = {
++ .stream_name = "Capture",
++ .channels_min = 2,
++ .channels_max = 2,
++ .rates = SNDRV_PCM_RATE_8000_44100,
++ .formats = SNDRV_PCM_FMTBIT_S16_LE,
++ },
++ .ops = &jz_codec_dai_ops,
++ .symmetric_rates = 1,
++};
++EXPORT_SYMBOL_GPL(jz_codec_dai);
++
++static int jz_codec_set_bias_level(struct snd_soc_codec *codec,
++ enum snd_soc_bias_level level)
++{
++
++ if (codec->bias_level == SND_SOC_BIAS_OFF && level != SND_SOC_BIAS_OFF) {
++ snd_soc_update_bits(codec, JZ_REG_CODEC_1,
++ JZ_CODEC_1_RESET, JZ_CODEC_1_RESET);
++ udelay(2);
++
++ snd_soc_update_bits(codec, JZ_REG_CODEC_1,
++ JZ_CODEC_1_SUSPEND | JZ_CODEC_1_RESET, 0);
++ }
++ switch (level) {
++ case SND_SOC_BIAS_ON:
++ snd_soc_update_bits(codec, JZ_REG_CODEC_1,
++ JZ_CODEC_1_VREF_DISABLE |
++ JZ_CODEC_1_VREF_AMP_DISABLE |
++ JZ_CODEC_1_HEADPHONE_POWER_DOWN_M |
++ JZ_CODEC_1_VREF_LOW_CURRENT |
++ JZ_CODEC_1_VREF_HIGH_CURRENT,
++ 0);
++ break;
++ case SND_SOC_BIAS_PREPARE:
++ snd_soc_update_bits(codec, JZ_REG_CODEC_1,
++ JZ_CODEC_1_VREF_LOW_CURRENT |
++ JZ_CODEC_1_VREF_HIGH_CURRENT,
++ JZ_CODEC_1_VREF_LOW_CURRENT |
++ JZ_CODEC_1_VREF_HIGH_CURRENT);
++ break;
++ case SND_SOC_BIAS_STANDBY:
++ snd_soc_update_bits(codec, JZ_REG_CODEC_1,
++ JZ_CODEC_1_VREF_DISABLE | JZ_CODEC_1_VREF_AMP_DISABLE,
++ JZ_CODEC_1_VREF_DISABLE | JZ_CODEC_1_VREF_AMP_DISABLE);
++ break;
++ case SND_SOC_BIAS_OFF:
++ snd_soc_update_bits(codec, JZ_REG_CODEC_1,
++ JZ_CODEC_1_SUSPEND, JZ_CODEC_1_SUSPEND);
++ break;
++ }
++ codec->bias_level = level;
++
++ return 0;
++}
++
++
++static struct snd_soc_codec *jz_codec_codec;
++
++static int jz_codec_dev_probe(struct platform_device *pdev)
++{
++ int ret;
++ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
++ struct snd_soc_codec *codec = jz_codec_codec;
++
++ BUG_ON(!codec);
++
++ socdev->card->codec = codec;
++
++ ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
++ if (ret) {
++ dev_err(&pdev->dev, "Failed to create pcms: %d\n", ret);
++ return ret;
++ }
++
++ snd_soc_add_controls(codec, jz_codec_controls,
++ ARRAY_SIZE(jz_codec_controls));
++
++ snd_soc_dapm_new_controls(codec, jz_codec_dapm_widgets,
++ ARRAY_SIZE(jz_codec_dapm_widgets));
++
++ snd_soc_dapm_add_routes(codec, jz_codec_dapm_routes,
++ ARRAY_SIZE(jz_codec_dapm_routes));
++
++ snd_soc_dapm_new_widgets(codec);
++
++ return 0;
++}
++
++static int jz_codec_dev_remove(struct platform_device *pdev)
++{
++ struct snd_soc_device *socdev = platform_get_drvdata(pdev);
++ snd_soc_free_pcms(socdev);
++ snd_soc_dapm_free(socdev);
++
++ return 0;
++}
++
++struct snd_soc_codec_device soc_codec_dev_jzcodec = {
++ .probe = jz_codec_dev_probe,
++ .remove = jz_codec_dev_remove,
++};
++EXPORT_SYMBOL_GPL(soc_codec_dev_jzcodec);
++
++static int __devinit jz_codec_probe(struct platform_device *pdev)
++{
++ int ret;
++ struct jz_codec *jz_codec;
++ struct snd_soc_codec *codec;
++
++ jz_codec = kzalloc(sizeof(*jz_codec), GFP_KERNEL);
++
++ if (!jz_codec)
++ return -ENOMEM;
++
++ jz_codec->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++
++ if (!jz_codec->mem) {
++ dev_err(&pdev->dev, "Failed to get mmio memory resource\n");
++ ret = -ENOENT;
++ goto err_free_jz_codec;
++ }
++
++ jz_codec->mem = request_mem_region(jz_codec->mem->start,
++ resource_size(jz_codec->mem), pdev->name);
++
++ if (!jz_codec->mem) {
++ dev_err(&pdev->dev, "Failed to request mmio memory region\n");
++ ret = -EBUSY;
++ goto err_free_jz_codec;
++ }
++
++ jz_codec->base = ioremap(jz_codec->mem->start, resource_size(jz_codec->mem));
++
++ if (!jz_codec->base) {
++ dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
++ ret = -EBUSY;
++ goto err_release_mem_region;
++ }
++
++ jz_codec_dai.dev = &pdev->dev;
++
++ codec = &jz_codec->codec;
++
++ codec->dev = &pdev->dev;
++ codec->name = "jz-codec";
++ codec->owner = THIS_MODULE;
++
++ codec->read = jz_codec_read;
++ codec->write = jz_codec_write;
++ codec->set_bias_level = jz_codec_set_bias_level;
++ codec->bias_level = SND_SOC_BIAS_OFF;
++
++ codec->dai = &jz_codec_dai;
++ codec->num_dai = 1;
++
++ codec->reg_cache = jz_codec->reg_cache;
++ codec->reg_cache_size = 2;
++
++ codec->private_data = jz_codec;
++
++ mutex_init(&codec->mutex);
++ INIT_LIST_HEAD(&codec->dapm_widgets);
++ INIT_LIST_HEAD(&codec->dapm_paths);
++
++ jz_codec_codec = codec;
++
++ snd_soc_update_bits(codec, JZ_REG_CODEC_1,
++ JZ_CODEC_1_SW2_ENABLE, JZ_CODEC_1_SW2_ENABLE);
++
++
++ platform_set_drvdata(pdev, jz_codec);
++ ret = snd_soc_register_codec(codec);
++
++ if (ret) {
++ dev_err(&pdev->dev, "Failed to register codec\n");
++ goto err_iounmap;
++ }
++
++ ret = snd_soc_register_dai(&jz_codec_dai);
++ if (ret) {
++ dev_err(&pdev->dev, "Failed to register codec dai\n");
++ goto err_unregister_codec;
++ }
++
++ jz_codec_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
++
++ return 0;
++err_unregister_codec:
++ snd_soc_unregister_codec(codec);
++err_iounmap:
++ iounmap(jz_codec->base);
++err_release_mem_region:
++ release_mem_region(jz_codec->mem->start, resource_size(jz_codec->mem));
++err_free_jz_codec:
++ kfree(jz_codec);
++
++ return ret;
++}
++
++static int __devexit jz_codec_remove(struct platform_device *pdev)
++{
++ struct jz_codec *jz_codec = platform_get_drvdata(pdev);
++
++ snd_soc_unregister_dai(&jz_codec_dai);
++ snd_soc_unregister_codec(&jz_codec->codec);
++
++ iounmap(jz_codec->base);
++ release_mem_region(jz_codec->mem->start, resource_size(jz_codec->mem));
++
++ platform_set_drvdata(pdev, NULL);
++ kfree(jz_codec);
++
++ return 0;
++}
++
++static struct platform_driver jz_codec_driver = {
++ .probe = jz_codec_probe,
++ .remove = __devexit_p(jz_codec_remove),
++ .driver = {
++ .name = "jz4740-codec",
++ .owner = THIS_MODULE,
++ },
++};
++
++static int __init jz_codec_init(void)
++{
++ return platform_driver_register(&jz_codec_driver);
++}
++module_init(jz_codec_init);
++
++static void __exit jz_codec_exit(void)
++{
++ platform_driver_unregister(&jz_codec_driver);
++}
++module_exit(jz_codec_exit);
++
++MODULE_DESCRIPTION("JZ4720/JZ4740 SoC internal codec driver");
++MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
++MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:jz-codec");
+diff --git a/sound/soc/codecs/jzcodec.h b/sound/soc/codecs/jzcodec.h
+new file mode 100644
+index 0000000..05c57b8
+--- /dev/null
++++ b/sound/soc/codecs/jzcodec.h
+@@ -0,0 +1,22 @@
++/*
++ * Copyright (C) 2009, Lars-Peter Clausen <lars@metafoo.de>
++ *
++ * 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.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#ifndef _ICODEC_H
++#define _ICODEC_H
++
++#define JZCODEC_SYSCLK 0
++
++extern struct snd_soc_dai jz_codec_dai;
++extern struct snd_soc_codec_device soc_codec_dev_jzcodec;
++
++#endif
+--
+1.5.6.5
+