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ASoC: tlv320aic23: add support for SPI control mode 

tlv320aic23 chip control interface may work in either I2C or SPI mode
depending on the MODE pin state. Functionality and register layout are
independent of the control mode.

Implement bus-specific parts as separate modules.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Max Filippov 2014-03-06 14:04:41 +04:00 committed by Mark Brown
parent 806057cc75
commit b3fc572596
6 changed files with 147 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sound/soc/codecs/Kconfig
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@ -71,7 +71,8 @@ config SND_SOC_ALL_CODECS
select SND_SOC_STA529 if I2C
select SND_SOC_STAC9766 if SND_SOC_AC97_BUS
select SND_SOC_TAS5086 if I2C
select SND_SOC_TLV320AIC23 if I2C
select SND_SOC_TLV320AIC23_I2C if I2C
select SND_SOC_TLV320AIC23_SPI if SPI_MASTER
select SND_SOC_TLV320AIC26 if SPI_MASTER
select SND_SOC_TLV320AIC32X4 if I2C
select SND_SOC_TLV320AIC3X if I2C
@ -357,6 +358,14 @@ config SND_SOC_TAS5086
config SND_SOC_TLV320AIC23
tristate
config SND_SOC_TLV320AIC23_I2C
tristate
select SND_SOC_TLV320AIC23
config SND_SOC_TLV320AIC23_SPI
tristate
select SND_SOC_TLV320AIC23
config SND_SOC_TLV320AIC26
tristate
depends on SPI

4
sound/soc/codecs/Makefile
View File

@ -63,6 +63,8 @@ snd-soc-sta529-objs := sta529.o
snd-soc-stac9766-objs := stac9766.o
snd-soc-tas5086-objs := tas5086.o
snd-soc-tlv320aic23-objs := tlv320aic23.o
snd-soc-tlv320aic23-i2c-objs := tlv320aic23-i2c.o
snd-soc-tlv320aic23-spi-objs := tlv320aic23-spi.o
snd-soc-tlv320aic26-objs := tlv320aic26.o
snd-soc-tlv320aic3x-objs := tlv320aic3x.o
snd-soc-tlv320aic32x4-objs := tlv320aic32x4.o
@ -193,6 +195,8 @@ obj-$(CONFIG_SND_SOC_STA529) += snd-soc-sta529.o
obj-$(CONFIG_SND_SOC_STAC9766) += snd-soc-stac9766.o
obj-$(CONFIG_SND_SOC_TAS5086) += snd-soc-tas5086.o
obj-$(CONFIG_SND_SOC_TLV320AIC23) += snd-soc-tlv320aic23.o
obj-$(CONFIG_SND_SOC_TLV320AIC23_I2C) += snd-soc-tlv320aic23-i2c.o
obj-$(CONFIG_SND_SOC_TLV320AIC23_SPI) += snd-soc-tlv320aic23-spi.o
obj-$(CONFIG_SND_SOC_TLV320AIC26) += snd-soc-tlv320aic26.o
obj-$(CONFIG_SND_SOC_TLV320AIC3X) += snd-soc-tlv320aic3x.o
obj-$(CONFIG_SND_SOC_TLV320AIC32X4) += snd-soc-tlv320aic32x4.o

59
sound/soc/codecs/tlv320aic23-i2c.c Normal file
View File

@ -0,0 +1,59 @@
/*
* ALSA SoC TLV320AIC23 codec driver I2C interface
*
* Author: Arun KS, <arunks@mistralsolutions.com>
* Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
*
* Based on sound/soc/codecs/wm8731.c by Richard Purdie
*
* 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.
*/
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/regmap.h>
#include <sound/soc.h>
#include "tlv320aic23.h"
static int tlv320aic23_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *i2c_id)
{
struct regmap *regmap;
if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EINVAL;
regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
return tlv320aic23_probe(&i2c->dev, regmap);
}
static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
{
snd_soc_unregister_codec(&i2c->dev);
return 0;
}
static const struct i2c_device_id tlv320aic23_id[] = {
{"tlv320aic23", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
static struct i2c_driver tlv320aic23_i2c_driver = {
.driver = {
.name = "tlv320aic23-codec",
},
.probe = tlv320aic23_i2c_probe,
.remove = __exit_p(tlv320aic23_i2c_remove),
.id_table = tlv320aic23_id,
};
module_i2c_driver(tlv320aic23_i2c_driver);
MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver I2C");
MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
MODULE_LICENSE("GPL");

57
sound/soc/codecs/tlv320aic23-spi.c Normal file
View File

@ -0,0 +1,57 @@
/*
* ALSA SoC TLV320AIC23 codec driver SPI interface
*
* Author: Arun KS, <arunks@mistralsolutions.com>
* Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
*
* Based on sound/soc/codecs/wm8731.c by Richard Purdie
*
* 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.
*/
#include <linux/module.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#include <sound/soc.h>
#include "tlv320aic23.h"
static int aic23_spi_probe(struct spi_device *spi)
{
int ret;
struct regmap *regmap;
dev_dbg(&spi->dev, "probing tlv320aic23 spi device\n");
spi->bits_per_word = 16;
spi->mode = SPI_MODE_0;
ret = spi_setup(spi);
if (ret < 0)
return ret;
regmap = devm_regmap_init_spi(spi, &tlv320aic23_regmap);
return tlv320aic23_probe(&spi->dev, regmap);
}
static int aic23_spi_remove(struct spi_device *spi)
{
snd_soc_unregister_codec(&spi->dev);
return 0;
}
static struct spi_driver aic23_spi = {
.driver = {
.name = "tlv320aic23",
.owner = THIS_MODULE,
},
.probe = aic23_spi_probe,
.remove = aic23_spi_remove,
};
module_spi_driver(aic23_spi);
MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver SPI");
MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
MODULE_LICENSE("GPL");

55
sound/soc/codecs/tlv320aic23.c
View File

@ -23,7 +23,6 @@
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
@ -51,7 +50,7 @@ static const struct reg_default tlv320aic23_reg[] = {
{ 9, 0x0000 },
};
static const struct regmap_config tlv320aic23_regmap = {
const struct regmap_config tlv320aic23_regmap = {
.reg_bits = 7,
.val_bits = 9,
@ -557,7 +556,7 @@ static int tlv320aic23_resume(struct snd_soc_codec *codec)
return 0;
}
static int tlv320aic23_probe(struct snd_soc_codec *codec)
static int tlv320aic23_codec_probe(struct snd_soc_codec *codec)
{
int ret;
@ -604,7 +603,7 @@ static int tlv320aic23_remove(struct snd_soc_codec *codec)
}
static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
.probe = tlv320aic23_probe,
.probe = tlv320aic23_codec_probe,
.remove = tlv320aic23_remove,
.suspend = tlv320aic23_suspend,
.resume = tlv320aic23_resume,
@ -617,56 +616,24 @@ static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
.num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon),
};
/*
* If the i2c layer weren't so broken, we could pass this kind of data
* around
*/
static int tlv320aic23_codec_probe(struct i2c_client *i2c,
const struct i2c_device_id *i2c_id)
int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
{
struct aic23 *aic23;
int ret;
if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -EINVAL;
if (IS_ERR(regmap))
return PTR_ERR(regmap);
aic23 = devm_kzalloc(&i2c->dev, sizeof(struct aic23), GFP_KERNEL);
aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
if (aic23 == NULL)
return -ENOMEM;
aic23->regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
if (IS_ERR(aic23->regmap))
return PTR_ERR(aic23->regmap);
aic23->regmap = regmap;
i2c_set_clientdata(i2c, aic23);
dev_set_drvdata(dev, aic23);
ret = snd_soc_register_codec(&i2c->dev,
&soc_codec_dev_tlv320aic23, &tlv320aic23_dai, 1);
return ret;
return snd_soc_register_codec(dev, &soc_codec_dev_tlv320aic23,
&tlv320aic23_dai, 1);
}
static int __exit tlv320aic23_i2c_remove(struct i2c_client *i2c)
{
snd_soc_unregister_codec(&i2c->dev);
return 0;
}
static const struct i2c_device_id tlv320aic23_id[] = {
{"tlv320aic23", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, tlv320aic23_id);
static struct i2c_driver tlv320aic23_i2c_driver = {
.driver = {
.name = "tlv320aic23-codec",
},
.probe = tlv320aic23_codec_probe,
.remove = __exit_p(tlv320aic23_i2c_remove),
.id_table = tlv320aic23_id,
};
module_i2c_driver(tlv320aic23_i2c_driver);
MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");

6
sound/soc/codecs/tlv320aic23.h
View File

@ -12,6 +12,12 @@
#ifndef _TLV320AIC23_H
#define _TLV320AIC23_H
struct device;
struct regmap_config;
extern const struct regmap_config tlv320aic23_regmap;
int tlv320aic23_probe(struct device *dev, struct regmap *regmap);
/* Codec TLV320AIC23 */
#define TLV320AIC23_LINVOL 0x00
#define TLV320AIC23_RINVOL 0x01