[alsa-devel] New codec for STAC9766 used on Efika
Jon Smirl
jonsmirl at gmail.com
Sat May 2 05:30:44 CEST 2009
With this version, why are these errors generated?
ALSA sound/core/control.c:334: control 2:0:0:All Analog PCM Switch:0
is already present
asoc: failed to add dapm kcontrol All Analog PCM Switch
ALSA sound/core/control.c:334: control 2:0:0:Mixer PC Beep Switch:0 is
already present
asoc: failed to add dapm kcontrol Mixer PC Beep Switch
Or is the right question, why didn't "Mixer AUX Switch" cause an error?
/*
* stac9766.c -- ALSA SoC STAC9766 codec support
*
* Copyright 2009 Jon Smirl, Digispeaker
* Author: Jon Smirl <jonsmirl at gmail.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.
*
* Features:-
*
* o Support for AC97 Codec, S/PDIF
* o Support for DAPM
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/soc-of-simple.h>
#include "stac9766.h"
#define STAC9766_VERSION "0.10"
/*
* STAC9766 register cache
*/
static const u16 stac9766_reg[] = {
0x6A90, 0x8000, 0x8000, 0x8000, /* 6 */
0x0000, 0x0000, 0x8008, 0x8008, /* e */
0x8808, 0x8808, 0x8808, 0x8808, /* 16 */
0x8808, 0x0000, 0x8000, 0x0000, /* 1e */
0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
0x0a05, 0x0400, 0xbb80, 0x0000, /* 2e */
0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
0x0000, 0x2000, 0x0000, 0x0100, /* 3e */
0x0000, 0x0000, 0x0080, 0x0000, /* 46 */
0x0000, 0x0000, 0x0003, 0xffff, /* 4e */
0x0000, 0x0000, 0x0000, 0x0000, /* 56 */
0x4000, 0x0000, 0x0000, 0x0000, /* 5e */
0x1201, 0xFFFF, 0xFFFF, 0x0000, /* 66 */
0x0000, 0x0000, 0x0000, 0x0000, /* 6e */
0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
0x0000, 0x0000, 0x0000, 0x0000, /* 7e */
};
static const char *stac9766_record_mux[] = {"Mic", "CD", "Video",
"AUX", "Line", "Stereo Mix", "Mono Mix", "Phone"};
static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
static const char *stac9766_record_all_mux[] = {"All analog", "Analog
plus DAC"};
static const char *stac9766_3D_separation[] = {"Off", "Low", "Medium", "High"};
static const struct soc_enum stac9766_record_enum =
SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 8, stac9766_record_mux); /* Record Mux 0 */
static const struct soc_enum stac9766_mono_enum =
SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 9, 2, stac9766_mono_mux); /*
Mono Mux 1 */
static const struct soc_enum stac9766_mic_enum =
SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, stac9766_mic_mux); /*
Mic1/2 Mux 2 */
static const struct soc_enum stac9766_SPDIF_enum =
SOC_ENUM_SINGLE(AC97_SENSE_INFO, 1, 2, stac9766_SPDIF_mux); /* SPDIF Mux 3 */
static const struct soc_enum stac9766_popbypass_enum =
SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 15, 2, stac9766_popbypass_mux);
/* Pop Bypass Mux 4 */
static const struct soc_enum stac9766_record_all_enum =
SOC_ENUM_SINGLE(AC97_STAC_ANALOG_SPECIAL, 12, 2,
stac9766_record_all_mux); /* Record All Mux 5 */
static const struct soc_enum stac9766_3D_seperation_enum =
SOC_ENUM_SINGLE(AC97_3D_CONTROL, 2, 4, stac9766_3D_separation); /* 3D
Separation 7 */
static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
SOC_DOUBLE("Speaker Playback Volume", AC97_MASTER, 8, 0, 31, 1),
SOC_SINGLE("Speaker Playback Switch", AC97_MASTER, 15, 1, 1),
SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
SOC_SINGLE("Mixer PC Beep Volume", AC97_PC_BEEP, 1, 15, 1),
SOC_SINGLE("Mixer PC Beep Switch", AC97_PC_BEEP, 15, 1, 1),
SOC_SINGLE("PC Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
SOC_SINGLE("Mixer Phone Volume", AC97_PHONE, 0, 31, 1),
SOC_SINGLE("Mixer Phone Switch", AC97_PHONE, 15, 1, 1),
SOC_SINGLE("Mixer Mic Volume", AC97_MIC, 0, 31, 1),
SOC_SINGLE("Mixer Mic Switch", AC97_MIC, 15, 1, 1),
SOC_SINGLE("Mic Boost", AC97_MIC, 6, 1, 1),
SOC_SINGLE("Mic Gain", AC97_STAC_ANALOG_SPECIAL, 2, 1, 1),
SOC_SINGLE("Stereo Mic", AC97_STAC_STEREO_MIC, 0, 1, 1),
SOC_DOUBLE("Mixer Line Volume", AC97_LINE, 8, 0, 31, 1),
SOC_SINGLE("Mixer Line Switch", AC97_LINE, 15, 1, 1),
SOC_DOUBLE("Mixer CD Volume", AC97_CD, 8, 0, 31, 1),
SOC_SINGLE("Mixer CD Switch", AC97_CD, 15, 1, 1),
SOC_DOUBLE("Mixer Video Volume", AC97_VIDEO, 8, 0, 31, 1),
SOC_SINGLE("Mixer Video Switch", AC97_VIDEO, 15, 1, 1),
SOC_DOUBLE("Mixer AUX Volume", AC97_AUX, 8, 0, 31, 1),
SOC_SINGLE("Mixer AUX Switch", AC97_AUX, 15, 1, 1),
SOC_DOUBLE("All Analog PCM Volume", AC97_PCM, 8, 0, 31, 1),
SOC_SINGLE("All Analog PCM Switch", AC97_PCM, 15, 1, 1),
SOC_DOUBLE("Record Gain", AC97_REC_GAIN, 8, 0, 31, 1),
SOC_SINGLE("Record Gain Switch", AC97_REC_GAIN, 15, 1, 1),
SOC_SINGLE("3D Effect Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
SOC_ENUM("3D Separation", stac9766_3D_seperation_enum),
};
/* Mixer */
static const struct snd_kcontrol_new stac9766_main_mixer_controls[] = {
SOC_DAPM_SINGLE("PC Beep Switch", AC97_PC_BEEP, 15, 1, 1),
SOC_DAPM_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
SOC_DAPM_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
SOC_DAPM_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
SOC_DAPM_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
SOC_DAPM_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
SOC_DAPM_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
};
/* Record All Mixer */
static const struct snd_kcontrol_new stac9766_record_all_mixer_controls[] = {
SOC_DAPM_SINGLE("PCM Switch", AC97_PCM, 15, 1, 1),
SOC_DAPM_SINGLE("Mixer", 0, 0, 0, 0),
};
/* Record Mux 0 */
static const struct snd_kcontrol_new stac9766_record_mux_controls =
SOC_DAPM_ENUM("Route", stac9766_record_enum);
/* Mono Mux 1 */
static const struct snd_kcontrol_new stac9766_mono_mux_controls =
SOC_DAPM_ENUM("Route", stac9766_mono_enum);
/* Mic1/2 Mux 2 */
static const struct snd_kcontrol_new stac9766_mic_mux_controls =
SOC_DAPM_ENUM("Route", stac9766_mic_enum);
/* SPDIF Mux 3 */
static const struct snd_kcontrol_new stac9766_spdif_mux_controls =
SOC_DAPM_ENUM("Route", stac9766_SPDIF_enum);
/* Pop Bypass 4 */
static const struct snd_kcontrol_new stac9766_popbypass_mux_controls =
SOC_DAPM_ENUM("Route", stac9766_popbypass_enum);
/* Record All 5 */
static const struct snd_kcontrol_new stac9766_record_all_mux_controls =
SOC_DAPM_ENUM("Route", stac9766_record_all_enum);
static const struct snd_soc_dapm_widget stac9766_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("PCMOut"),
SND_SOC_DAPM_INPUT("PCBEEP"),
SND_SOC_DAPM_INPUT("Phone"),
SND_SOC_DAPM_INPUT("MIC1"),
SND_SOC_DAPM_INPUT("MIC2"),
SND_SOC_DAPM_INPUT("Line"),
SND_SOC_DAPM_INPUT("CD"),
SND_SOC_DAPM_INPUT("AUX"),
SND_SOC_DAPM_INPUT("Video"),
SND_SOC_DAPM_DAC("DAC", "Analog Playback", AC97_POWERDOWN, 9, 1),
SND_SOC_DAPM_MUX("SPDIF Mux", SND_SOC_NOPM, 0, 0,
&stac9766_spdif_mux_controls),
SND_SOC_DAPM_MUX("Mic1/2 Mux", SND_SOC_NOPM, 0, 0,
&stac9766_mic_mux_controls),
SND_SOC_DAPM_MIXER("Mixer", SND_SOC_NOPM, 0, 1,
&stac9766_main_mixer_controls[0], ARRAY_SIZE(stac9766_main_mixer_controls)),
SND_SOC_DAPM_MUX("Record All Mux", SND_SOC_NOPM, 0, 0,
&stac9766_record_all_mux_controls),
SND_SOC_DAPM_MUX("Record Mux", SND_SOC_NOPM, 0, 0,
&stac9766_record_mux_controls),
SND_SOC_DAPM_MUX("Mono Mux", SND_SOC_NOPM, 0, 0,
&stac9766_mono_mux_controls),
SND_SOC_DAPM_MUX("Pop Bypass Mux", SND_SOC_NOPM, 0, 0,
&stac9766_popbypass_mux_controls),
SND_SOC_DAPM_MIXER("All Analog", SND_SOC_NOPM, 0, 1,
&stac9766_record_all_mixer_controls[0],
ARRAY_SIZE(stac9766_record_all_mixer_controls)),
SND_SOC_DAPM_ADC("ADC", "Analog Capture", AC97_POWERDOWN, 8, 1),
SND_SOC_DAPM_OUTPUT("HP"),
SND_SOC_DAPM_OUTPUT("LINE"),
SND_SOC_DAPM_OUTPUT("MONO"),
SND_SOC_DAPM_OUTPUT("PCMIn"),
SND_SOC_DAPM_VMID("VMID"),
};
static const struct snd_soc_dapm_route audio_map[] = {
{"HP", NULL, "Pop Bypass Mux"},
{"LINE", NULL, "Pop Bypass Mux"},
/* Mono Mux */
{"MONO", NULL, "Pop Bypass Mux"},
{"MONO", NULL, "Mic1/2 Mux"},
/* Pop Bypass Mux */
{"Pop Bypass Mux", NULL, "DAC"},
{"Pop Bypass Mux", NULL, "All Analog"},
/* Record Mux */
{"ADC", NULL, "Mic1/2 Mux"},
{"ADC", NULL, "CD"},
{"ADC", NULL, "Video"},
{"ADC", NULL, "AUX"},
{"ADC", NULL, "Line"},
{"ADC", NULL, "Record All Mux"},
{"ADC", NULL, "Phone"},
{"PCMIn", NULL, "ADC"},
/* Record All Mux */
{"Record All Mux", NULL, "Mixer"},
{"Record All Mux", NULL, "All Analog"},
/* All Analog Mixer */
{"All Analog", NULL, "Mixer"},
{"All Analog", "PCM Switch", "DAC"},
/* Mixer */
{"Mixer", "PC Beep Switch", "PCBEEP"},
{"Mixer", "Phone Switch", "Phone"},
{"Mixer", "Mic Switch", "Mic1/2 Mux"},
{"Mixer", "Line Switch", "Line"},
{"Mixer", "CD Switch", "CD"},
{"Mixer", "AUX Switch", "AUX"},
{"Mixer", "Video Switch", "Video"},
{"DAC", NULL, "PCMOut"},
/* Mic1/2 Mux */
{"Mic1/2 Mux", NULL, "MIC1"},
{"Mic1/2 Mux", NULL, "MIC2"},
/* SPDIF Mux */
{"SPDIF Mux", NULL, "PCMOut"},
{"SPDIF Mux", NULL, "ADC"},
};
static int stac9766_add_widgets(struct snd_soc_codec *codec)
{
snd_soc_dapm_new_controls(codec, stac9766_dapm_widgets, ARRAY_SIZE(
stac9766_dapm_widgets));
snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
snd_soc_dapm_new_widgets(codec);
return 0;
}
unsigned int stac9766_ac97_read(struct snd_soc_codec *codec, unsigned int reg)
{
u16 val = 0, *cache = codec->reg_cache;
if (reg / 2 > ARRAY_SIZE(stac9766_reg))
return -EIO;
if (reg == AC97_RESET || reg == AC97_GPIO_STATUS || AC97_INT_PAGING || reg
== AC97_VENDOR_ID1 || reg
== AC97_VENDOR_ID2) {
val = soc_ac97_ops.read(codec->ac97, reg);
return val;
}
return cache[reg / 2];
}
int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
unsigned int val)
{
u16 *cache = codec->reg_cache;
if (reg / 2 > ARRAY_SIZE(stac9766_reg))
return -EIO;
soc_ac97_ops.write(codec->ac97, reg, val);
cache[reg / 2] = val;
return 0;
}
static int ac97_analog_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct snd_soc_codec *codec = dai->codec;
struct snd_pcm_runtime *runtime = substream->runtime;
unsigned short reg, vra;
vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
//vra |= 0x4;
stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);
printk("AC97_EXTENDED_STATUS %x\n", vra);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
reg = AC97_PCM_FRONT_DAC_RATE;
else
reg = AC97_PCM_LR_ADC_RATE;
return stac9766_ac97_write(codec, reg, runtime->rate);
}
static int ac97_digital_prepare(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
printk("stac9766: ac97_digital_prepare\n");
return 0;
}
static int stac9766_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
switch (level) {
case SND_SOC_BIAS_ON: /* full On */
stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
break;
case SND_SOC_BIAS_PREPARE: /* partial On */
stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
break;
case SND_SOC_BIAS_STANDBY: /* Off, with power */
stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
break;
case SND_SOC_BIAS_OFF: /* Off, without power */
/* disable everything including AC link */
stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
break;
}
codec->bias_level = level;
return 0;
}
static int stac9766_codec_suspend(struct platform_device *pdev,
pm_message_t state)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
stac9766_set_bias_level(codec, SND_SOC_BIAS_OFF);
return 0;
}
static int stac9766_codec_resume(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
u16 id;
/* give the codec an AC97 warm reset to start the link */
codec->ac97->bus->ops->warm_reset(codec->ac97);
id = soc_ac97_ops.read(codec->ac97, AC97_VENDOR_ID2);
if (id != 0x4c13) {
printk(KERN_ERR "stac9766 failed to resume");
return -EIO;
}
stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
if (codec->suspend_bias_level == SND_SOC_BIAS_ON)
stac9766_set_bias_level(codec, SND_SOC_BIAS_ON);
return 0;
}
static struct snd_soc_dai_ops stac9766_dai_ops_analog =
{
.prepare = ac97_analog_prepare,
};
static struct snd_soc_dai_ops stac9766_dai_ops_digital =
{
.prepare = ac97_digital_prepare,
};
struct snd_soc_dai stac9766_dai[] = {
{
.name = "stac9766 analog",
.id = 0,
.ac97_control = 1,
/* stream cababilities */
.playback = {
.stream_name = "stac9766 analog",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S32_BE,
},
.capture = {
.stream_name = "stac9766 analog",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_48000,
.formats = SNDRV_PCM_FMTBIT_S32_BE,
},
/* alsa ops */
.ops = &stac9766_dai_ops_analog,
},
{
.name = "stac9766 digital",
.id = 1,
.ac97_control = 1,
/* stream cababilities */
.playback = {
.stream_name = "stac9766 digital",
.channels_min = 1,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_32000 |
SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME,
},
/* alsa ops */
.ops = &stac9766_dai_ops_digital,
}};
EXPORT_SYMBOL_GPL(stac9766_dai);
int stac9766_reset(struct snd_soc_codec *codec, int try_warm)
{
if (try_warm && soc_ac97_ops.warm_reset) {
soc_ac97_ops.warm_reset(codec->ac97);
if (stac9766_ac97_read(codec, 0) == stac9766_reg[0])
return 1;
}
soc_ac97_ops.reset(codec->ac97);
if (soc_ac97_ops.warm_reset)
soc_ac97_ops.warm_reset(codec->ac97);
if (stac9766_ac97_read(codec, 0) != stac9766_reg[0])
return -EIO;
return 0;
}
static int stac9766_codec_probe(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec;
int ret = 0;
printk(KERN_INFO "STAC9766 SoC Audio Codec %s\n", STAC9766_VERSION);
socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
if (socdev->card->codec == NULL)
return -ENOMEM;
codec = socdev->card->codec;
mutex_init(&codec->mutex);
codec->reg_cache = kmemdup(stac9766_reg, sizeof(stac9766_reg), GFP_KERNEL);
if (codec->reg_cache == NULL) {
ret = -ENOMEM;
goto cache_err;
}
codec->reg_cache_size = sizeof(stac9766_reg);
codec->reg_cache_step = 2;
codec->name = "STAC9766";
codec->owner = THIS_MODULE;
codec->dai = stac9766_dai;
codec->num_dai = ARRAY_SIZE(stac9766_dai);
codec->write = stac9766_ac97_write;
codec->read = stac9766_ac97_read;
codec->set_bias_level = stac9766_set_bias_level;
INIT_LIST_HEAD(&codec->dapm_widgets);
INIT_LIST_HEAD(&codec->dapm_paths);
ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
if (ret < 0)
goto codec_err;
/* register pcms */
ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
if (ret < 0)
goto pcm_err;
/* do a cold reset for the controller and then try
* a warm reset followed by an optional cold reset for codec */
stac9766_reset(codec, 0);
ret = stac9766_reset(codec, 1);
if (ret < 0) {
printk(KERN_ERR "Failed to reset STAC9766: AC97 link error\n");
goto reset_err;
}
stac9766_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
snd_soc_add_controls(codec, stac9766_snd_ac97_controls, ARRAY_SIZE(
stac9766_snd_ac97_controls));
stac9766_add_widgets(codec);
ret = snd_soc_init_card(socdev);
if (ret < 0)
goto reset_err;
return 0;
reset_err:
snd_soc_free_pcms(socdev);
pcm_err:
snd_soc_free_ac97_codec(codec);
codec_err:
kfree(codec->private_data);
cache_err:
kfree(socdev->card->codec);
socdev->card->codec = NULL;
return ret;
}
static int stac9766_codec_remove(struct platform_device *pdev)
{
struct snd_soc_device *socdev = platform_get_drvdata(pdev);
struct snd_soc_codec *codec = socdev->card->codec;
if (codec == NULL)
return 0;
snd_soc_dapm_free(socdev);
snd_soc_free_pcms(socdev);
snd_soc_free_ac97_codec(codec);
kfree(codec->reg_cache);
kfree(codec);
return 0;
}
struct snd_soc_codec_device soc_codec_dev_stac9766 =
{
.probe = stac9766_codec_probe,
.remove = stac9766_codec_remove,
.suspend = stac9766_codec_suspend,
.resume = stac9766_codec_resume,
};
EXPORT_SYMBOL_GPL(soc_codec_dev_stac9766);
static int __init stac9766_probe(struct platform_device *pdev)
{
snd_soc_register_dais(stac9766_dai, ARRAY_SIZE(stac9766_dai));
#if defined(CONFIG_SND_SOC_OF_SIMPLE)
/* Tell the of_soc helper about this codec */
of_snd_soc_register_codec(&soc_codec_dev_stac9766, pdev->dev.archdata.of_node,
stac9766_dai, ARRAY_SIZE(stac9766_dai),
pdev->dev.archdata.of_node);
#endif
return 0;
}
static struct platform_driver stac9766_driver =
{
.probe = stac9766_probe,
.driver = {
.name = "stac9766",
},
};
static __init int stac9766_driver_init(void)
{
return platform_driver_register(&stac9766_driver);
}
static __exit void stac9766_driver_exit(void)
{
}
module_init(stac9766_driver_init);
module_exit(stac9766_driver_exit);
MODULE_DESCRIPTION("ASoC stac9766 driver");
MODULE_AUTHOR("Jon Smirl <jonsmirl at gmail.com>");
MODULE_LICENSE("GPL");
--
Jon Smirl
jonsmirl at gmail.com
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