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authorAndy Green <agreen@octopus.localdomain>2009-02-15 12:31:13 +0000
committerAndy Green <agreen@octopus.localdomain>2009-02-15 12:31:13 +0000
commitb8ab63952fbbc74f139da96d2b4fb01d3fa9fe6d (patch)
tree8a72c3446cc5c25064ea5c5e1b10b84f19066881
parentd6deb02387ac71384ab469044f40b576c94e4445 (diff)
Copy the GTA02 support and edit out the items that are
not present in the GTA03 (such as the external AMP) and bind to the S3C64XX I2S audio. Signed-off-by: Ben Dooks <ben@simtec.co.uk>
-rw-r--r--sound/soc/s3c24xx/Kconfig9
-rw-r--r--sound/soc/s3c24xx/Makefile3
-rw-r--r--sound/soc/s3c24xx/om_gta03_wm8753.c568
3 files changed, 579 insertions, 1 deletions
diff --git a/sound/soc/s3c24xx/Kconfig b/sound/soc/s3c24xx/Kconfig
index b845699dedd..11dcdfa663f 100644
--- a/sound/soc/s3c24xx/Kconfig
+++ b/sound/soc/s3c24xx/Kconfig
@@ -52,6 +52,15 @@ config SND_S3C24XX_SOC_NEO1973_GTA02_WM8753
Say Y if you want to add support for SoC audio on neo1973 gta02
with the WM8753 codec
+config SND_S3C24XX_SOC_OM_GTA03_WM8753
+ tristate "SoC I2S Audio support for OM GTA03 - WM8753"
+ depends on SND_S3C24XX_SOC && MACH_OPENMOKO_GTA03
+ select SND_S3C64XX_SOC_I2S
+ select SND_SOC_WM8753
+ help
+ Say Y if you want support for SoC audio on Openmoko GTA03
+ with the WM8753 codec.
+
config SND_S3C24XX_SOC_SMDK2443_WM9710
tristate "SoC AC97 Audio support for SMDK2443 - WM9710"
depends on SND_S3C24XX_SOC && MACH_SMDK2443
diff --git a/sound/soc/s3c24xx/Makefile b/sound/soc/s3c24xx/Makefile
index de985410444..c1ff0e4bcde 100644
--- a/sound/soc/s3c24xx/Makefile
+++ b/sound/soc/s3c24xx/Makefile
@@ -20,6 +20,7 @@ snd-soc-smdk2443-wm9710-objs := smdk2443_wm9710.o
snd-soc-ln2440sbc-alc650-objs := ln2440sbc_alc650.o
snd-soc-s3c24xx-uda134x-objs := s3c24xx_uda134x.o
snd-soc-neo1973-gta02-wm8753-objs := neo1973_gta02_wm8753.o
+snd-soc-om-gta03-wm8753-objs := om_gta03_wm8753.o
obj-$(CONFIG_SND_S3C24XX_SOC_JIVE_WM8750) += snd-soc-jive-wm8750.o
obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
@@ -27,4 +28,4 @@ obj-$(CONFIG_SND_S3C24XX_SOC_SMDK2443_WM9710) += snd-soc-smdk2443-wm9710.o
obj-$(CONFIG_SND_S3C24XX_SOC_LN2440SBC_ALC650) += snd-soc-ln2440sbc-alc650.o
obj-$(CONFIG_SND_S3C24XX_SOC_S3C24XX_UDA134X) += snd-soc-s3c24xx-uda134x.o
obj-$(CONFIG_SND_S3C24XX_SOC_NEO1973_GTA02_WM8753) += snd-soc-neo1973-gta02-wm8753.o
-
+obj-$(CONFIG_SND_S3C24XX_SOC_OM_GTA03_WM8753) += snd-soc-om-gta03-wm8753.o
diff --git a/sound/soc/s3c24xx/om_gta03_wm8753.c b/sound/soc/s3c24xx/om_gta03_wm8753.c
new file mode 100644
index 00000000000..60879b8bc80
--- /dev/null
+++ b/sound/soc/s3c24xx/om_gta03_wm8753.c
@@ -0,0 +1,568 @@
+/*
+ * om_gta03_wm8753.c -- SoC audio for GTA03
+ *
+ * Based on neo1973_gta02_wm8753
+ *
+ * Copyright 2009 Openmoko Inc
+ * Author: Ben Dooks <ben@simtec.co.uk>
+ * Copyright 2007 Openmoko Inc
+ * Author: Graeme Gregory <graeme@openmoko.org>
+ * Copyright 2007 Wolfson Microelectronics PLC.
+ * Author: Graeme Gregory <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.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/timer.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+#include <sound/soc-dapm.h>
+
+#include <asm/mach-types.h>
+#include <asm/hardware/scoop.h>
+
+#include <plat/regs-s3c2412-iis.h>
+
+#include "../codecs/wm8753.h"
+#include "s3c24xx-pcm.h"
+#include "s3c64xx-i2s.h"
+
+/* define the scenarios */
+#define NEO_AUDIO_OFF 0
+#define NEO_GSM_CALL_AUDIO_HANDSET 1
+#define NEO_GSM_CALL_AUDIO_HEADSET 2
+#define NEO_GSM_CALL_AUDIO_BLUETOOTH 3
+#define NEO_STEREO_TO_SPEAKERS 4
+#define NEO_STEREO_TO_HEADPHONES 5
+#define NEO_CAPTURE_HANDSET 6
+#define NEO_CAPTURE_HEADSET 7
+#define NEO_CAPTURE_BLUETOOTH 8
+#define NEO_STEREO_TO_HANDSET_SPK 9
+
+static struct snd_soc_card om_gta03;
+
+static int om_gta03_hifi_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_dai *codec_dai = rtd->dai->codec_dai;
+ struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
+ unsigned int pll_out = 0, bclk = 0;
+ int ret = 0;
+ unsigned long iis_clkrate;
+
+ iis_clkrate = s3c64xx_i2s_get_clockrate(cpu_dai);
+
+ switch (params_rate(params)) {
+ case 8000:
+ case 16000:
+ pll_out = 12288000;
+ break;
+ case 48000:
+ bclk = WM8753_BCLK_DIV_4;
+ pll_out = 12288000;
+ break;
+ case 96000:
+ bclk = WM8753_BCLK_DIV_2;
+ pll_out = 12288000;
+ break;
+ case 11025:
+ bclk = WM8753_BCLK_DIV_16;
+ pll_out = 11289600;
+ break;
+ case 22050:
+ bclk = WM8753_BCLK_DIV_8;
+ pll_out = 11289600;
+ break;
+ case 44100:
+ bclk = WM8753_BCLK_DIV_4;
+ pll_out = 11289600;
+ break;
+ case 88200:
+ bclk = WM8753_BCLK_DIV_2;
+ pll_out = 11289600;
+ break;
+ }
+
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai,
+ SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set cpu DAI configuration */
+ ret = snd_soc_dai_set_fmt(cpu_dai,
+ SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBM_CFM);
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
+ SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+#if 0
+ /* do not think we need to set this if the cpu is not the bitclk
+ * master */
+ /* set MCLK division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
+ S3C2410_IISMOD_32FS);
+ if (ret < 0)
+ return ret;
+#endif
+
+ /* set codec BCLK division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
+ if (ret < 0)
+ return ret;
+
+ /* set prescaler division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C64XX_DIV_PRESCALER, 4);
+ if (ret < 0)
+ return ret;
+
+ /* codec PLL input is PCLK/4 */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1,
+ iis_clkrate / 4, pll_out);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int om_gta03_hifi_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+
+ /* disable the PLL */
+ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0);
+}
+
+/*
+ * GTA03 WM8753 HiFi DAI opserations.
+ */
+static struct snd_soc_ops om_gta03_hifi_ops = {
+ .hw_params = om_gta03_hifi_hw_params,
+ .hw_free = om_gta03_hifi_hw_free,
+};
+
+static int om_gta03_voice_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_dai *codec_dai = rtd->dai->codec_dai;
+ unsigned int pcmdiv = 0;
+ int ret = 0;
+ unsigned long iis_clkrate;
+
+ iis_clkrate = s3c64xx_i2s_get_clockrate(rtd->dai->cpu_dai);
+
+ if (params_rate(params) != 8000)
+ return -EINVAL;
+ if (params_channels(params) != 1)
+ return -EINVAL;
+
+ pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */
+
+ /* todo: gg check mode (DSP_B) against CSR datasheet */
+ /* set codec DAI configuration */
+ ret = snd_soc_dai_set_fmt(codec_dai, (SND_SOC_DAIFMT_DSP_B |
+ SND_SOC_DAIFMT_NB_NF |
+ SND_SOC_DAIFMT_CBS_CFS));
+ if (ret < 0)
+ return ret;
+
+ /* set the codec system clock for DAC and ADC */
+ ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK,
+ 12288000, SND_SOC_CLOCK_IN);
+ if (ret < 0)
+ return ret;
+
+ /* set codec PCM division for sample rate */
+ ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
+ if (ret < 0)
+ return ret;
+
+ /* configue and enable PLL for 12.288MHz output */
+ ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2,
+ iis_clkrate / 4, 12288000);
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static int om_gta03_voice_hw_free(struct snd_pcm_substream *substream)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
+
+ /* disable the PLL */
+ return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0);
+}
+
+static struct snd_soc_ops om_gta03_voice_ops = {
+ .hw_params = om_gta03_voice_hw_params,
+ .hw_free = om_gta03_voice_hw_free,
+};
+
+static int om_gta03_set_stereo_out(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ int val = ucontrol->value.integer.value[0];
+
+ snd_soc_dapm_set_endpoint(codec, "Stereo Out", val);
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+static int om_gta03_get_stereo_out(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] =
+ snd_soc_dapm_get_endpoint(codec, "Stereo Out");
+
+ return 0;
+}
+
+
+static int om_gta03_set_gsm_out(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ int val = ucontrol->value.integer.value[0];
+
+ snd_soc_dapm_set_endpoint(codec, "GSM Line Out", val);
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+static int om_gta03_get_gsm_out(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] =
+ snd_soc_dapm_get_endpoint(codec, "GSM Line Out");
+
+ return 0;
+}
+
+static int om_gta03_set_gsm_in(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ int val = ucontrol->value.integer.value[0];
+
+ snd_soc_dapm_set_endpoint(codec, "GSM Line In", val);
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+static int om_gta03_get_gsm_in(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] =
+ snd_soc_dapm_get_endpoint(codec, "GSM Line In");
+
+ return 0;
+}
+
+static int om_gta03_set_headset_mic(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ int val = ucontrol->value.integer.value[0];
+
+ snd_soc_dapm_set_endpoint(codec, "Headset Mic", val);
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+static int om_gta03_get_headset_mic(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] =
+ snd_soc_dapm_get_endpoint(codec, "Headset Mic");
+
+ return 0;
+}
+
+static int om_gta03_set_handset_mic(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ int val = ucontrol->value.integer.value[0];
+
+ snd_soc_dapm_set_endpoint(codec, "Handset Mic", val);
+
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+static int om_gta03_get_handset_mic(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] =
+ snd_soc_dapm_get_endpoint(codec, "Handset Mic");
+
+ return 0;
+}
+
+static int om_gta03_set_handset_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+ int val = ucontrol->value.integer.value[0];
+
+ snd_soc_dapm_set_endpoint(codec, "Handset Spk", val);
+
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+static int om_gta03_get_handset_spk(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
+
+ ucontrol->value.integer.value[0] =
+ snd_soc_dapm_get_endpoint(codec, "Handset Spk");
+
+ return 0;
+}
+
+static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
+ SND_SOC_DAPM_LINE("Stereo Out", NULL),
+ SND_SOC_DAPM_LINE("GSM Line Out", NULL),
+ SND_SOC_DAPM_LINE("GSM Line In", NULL),
+ SND_SOC_DAPM_MIC("Headset Mic", NULL),
+ SND_SOC_DAPM_MIC("Handset Mic", NULL),
+ SND_SOC_DAPM_SPK("Handset Spk", NULL),
+};
+
+
+/* example machine audio_mapnections */
+static const struct snd_soc_dapm_route audio_map[] = {
+
+ {"Stereo Out", NULL, "LOUT1"},
+ {"Stereo Out", NULL, "ROUT1"},
+
+ /* Connections to the GSM Module */
+ {"GSM Line Out", NULL, "MONO1"},
+ {"GSM Line Out", NULL, "MONO2"},
+ {"RXP", NULL, "GSM Line In"},
+ {"RXN", NULL, "GSM Line In"},
+
+ /* Connections to Headset */
+ {"MIC1", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Headset Mic"},
+
+ /* Call Mic */
+ {"MIC2", NULL, "Mic Bias"},
+ {"MIC2N", NULL, "Mic Bias"},
+ {"Mic Bias", NULL, "Handset Mic"},
+
+ /* Call Speaker */
+ {"Handset Spk", NULL, "LOUT2"},
+ {"Handset Spk", NULL, "ROUT2"},
+
+ /* Connect the ALC pins */
+ {"ACIN", NULL, "ACOP"},
+};
+
+static const struct snd_kcontrol_new wm8753_om_gta03_controls[] = {
+ SOC_SINGLE_EXT("DAPM Stereo Out Switch", 0, 0, 1, 0,
+ om_gta03_get_stereo_out,
+ om_gta03_set_stereo_out),
+ SOC_SINGLE_EXT("DAPM GSM Line Out Switch", 1, 0, 1, 0,
+ om_gta03_get_gsm_out,
+ om_gta03_set_gsm_out),
+ SOC_SINGLE_EXT("DAPM GSM Line In Switch", 2, 0, 1, 0,
+ om_gta03_get_gsm_in,
+ om_gta03_set_gsm_in),
+ SOC_SINGLE_EXT("DAPM Headset Mic Switch", 3, 0, 1, 0,
+ om_gta03_get_headset_mic,
+ om_gta03_set_headset_mic),
+ SOC_SINGLE_EXT("DAPM Handset Mic Switch", 4, 0, 1, 0,
+ om_gta03_get_handset_mic,
+ om_gta03_set_handset_mic),
+ SOC_SINGLE_EXT("DAPM Handset Spk Switch", 5, 0, 1, 0,
+ om_gta03_get_handset_spk,
+ om_gta03_set_handset_spk),
+};
+
+/*
+ * This is an example machine initialisation for a wm8753 connected to a
+ * neo1973 GTA02.
+ */
+static int om_gta03_wm8753_init(struct snd_soc_codec *codec)
+{
+ int i, err;
+
+ /* set up NC codec pins */
+ snd_soc_dapm_set_endpoint(codec, "OUT3", 0);
+ snd_soc_dapm_set_endpoint(codec, "OUT4", 0);
+ snd_soc_dapm_set_endpoint(codec, "LINE1", 0);
+ snd_soc_dapm_set_endpoint(codec, "LINE2", 0);
+
+
+ /* Add neo1973 gta02 specific widgets */
+ snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets,
+ ARRAY_SIZE(wm8753_dapm_widgets));
+
+ /* add neo1973 gta02 specific controls */
+ for (i = 0; i < ARRAY_SIZE(wm8753_om_gta03_controls); i++) {
+ err = snd_ctl_add(codec->card,
+ snd_soc_cnew(&wm8753_om_gta03_controls[i],
+ codec, NULL));
+ if (err < 0)
+ return err;
+ }
+
+ /* set up neo1973 gta02 specific audio path audio_mapnects */
+ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
+
+ /* set endpoints to default off mode */
+ snd_soc_dapm_set_endpoint(codec, "Stereo Out", 0);
+ snd_soc_dapm_set_endpoint(codec, "GSM Line Out",0);
+ snd_soc_dapm_set_endpoint(codec, "GSM Line In", 0);
+ snd_soc_dapm_set_endpoint(codec, "Headset Mic", 0);
+ snd_soc_dapm_set_endpoint(codec, "Handset Mic", 0);
+ snd_soc_dapm_set_endpoint(codec, "Handset Spk", 0);
+
+ snd_soc_dapm_sync(codec);
+
+ return 0;
+}
+
+/*
+ * BT Codec DAI
+ */
+static struct snd_soc_dai bt_dai =
+{ .name = "Bluetooth",
+ .id = 0,
+ .playback = {
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+ .capture = {
+ .channels_min = 1,
+ .channels_max = 1,
+ .rates = SNDRV_PCM_RATE_8000,
+ .formats = SNDRV_PCM_FMTBIT_S16_LE,
+ },
+};
+
+static struct snd_soc_dai_link om_gta03_dai[] = {
+ { /* Hifi Playback - for similatious use with voice below */
+ .name = "WM8753",
+ .stream_name = "WM8753 HiFi",
+ .cpu_dai = &s3c64xx_i2s_dai,
+ .codec_dai = &wm8753_dai[WM8753_DAI_HIFI],
+ .init = om_gta03_wm8753_init,
+ .ops = &om_gta03_hifi_ops,
+ },
+ { /* Voice via BT */
+ .name = "Bluetooth",
+ .stream_name = "Voice",
+ .cpu_dai = &bt_dai,
+ .codec_dai = &wm8753_dai[WM8753_DAI_VOICE],
+ .ops = &om_gta03_voice_ops,
+ },
+};
+
+static struct snd_soc_card om_gta03 = {
+ .name = "om-gta03",
+ .platform = &s3c24xx_soc_platform,
+ .dai_link = om_gta03_dai,
+ .num_links = ARRAY_SIZE(om_gta03_dai),
+};
+
+/* Audio private data */
+static struct wm8753_setup_data soc_codec_data_wm8753_gta02 = {
+ .i2c_bus = 0,
+ .i2c_address = 0x1a,
+};
+
+static struct snd_soc_device om_gta03_snd_devdata = {
+ .card = &om_gta03,
+ .codec_dev = &soc_codec_dev_wm8753,
+ .codec_data = &soc_codec_data_wm8753_gta02,
+};
+
+static struct platform_device *om_gta03_snd_device;
+
+static int __init om_gta03_init(void)
+{
+ int ret;
+
+ if (!machine_is_openmoko_gta03()) {
+ printk(KERN_INFO "Only GTA03 supported by ASoC driver\n");
+ return -ENODEV;
+ }
+
+ /* register bluetooth DAI here */
+ ret = snd_soc_register_dai(&bt_dai);
+ if (ret)
+ return ret;
+
+ om_gta03_snd_device = platform_device_alloc("soc-audio", 0);
+ if (!om_gta03_snd_device)
+ return -ENOMEM;
+
+ platform_set_drvdata(om_gta03_snd_device, &om_gta03_snd_devdata);
+ om_gta03_snd_devdata.dev = &om_gta03_snd_device->dev;
+ ret = platform_device_add(om_gta03_snd_device);
+
+ if (ret) {
+ platform_device_put(om_gta03_snd_device);
+ return ret;
+ }
+
+ return ret;
+}
+
+static void __exit om_gta03_exit(void)
+{
+ platform_device_unregister(om_gta03_snd_device);
+}
+
+module_init(om_gta03_init);
+module_exit(om_gta03_exit);
+
+/* Module information */
+MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org; Ben Dooks <ben@simtec.co.uk>");
+MODULE_DESCRIPTION("ALSA SoC WM8753 OM GTA03");
+MODULE_LICENSE("GPL");