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Commit b39e2855 authored by Mike Frysinger's avatar Mike Frysinger Committed by Mark Brown
Browse files

ASoC: SSM2602: add SPI support 



The ssm2602 codec has a SPI interface as well as I2C, so add the simple
bit of glue to make it usable.

Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
parent b7af1daf

sound/soc/codecs/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -40,7 +40,7 @@ config SND_SOC_ALL_CODECS 
	select SND_SOC_SGTL5000 if I2C

	select SND_SOC_SN95031 if INTEL_SCU_IPC

	select SND_SOC_SPDIF

	select SND_SOC_SSM2602 if I2C

	select SND_SOC_SSM2602 if SND_SOC_I2C_AND_SPI

	select SND_SOC_STAC9766 if SND_SOC_AC97_BUS

	select SND_SOC_TLV320AIC23 if I2C

	select SND_SOC_TLV320AIC26 if SPI_MASTER

sound/soc/codecs/ssm2602.c

+52 −4
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ 
#include <linux/delay.h>

#include <linux/pm.h>

#include <linux/i2c.h>

#include <linux/spi/spi.h>

#include <linux/platform_device.h>

#include <linux/slab.h>

#include <sound/core.h>
@@ -556,6 +557,43 @@ static struct snd_soc_codec_driver soc_codec_dev_ssm2602 = { 
	.reg_cache_default = ssm2602_reg,

};



#if defined(CONFIG_SPI_MASTER)

static int __devinit ssm2602_spi_probe(struct spi_device *spi)

{

	struct ssm2602_priv *ssm2602;

	int ret;



	ssm2602 = kzalloc(sizeof(struct ssm2602_priv), GFP_KERNEL);

	if (ssm2602 == NULL)

		return -ENOMEM;



	spi_set_drvdata(spi, ssm2602);

	ssm2602->control_type = SND_SOC_SPI;



	ret = snd_soc_register_codec(&spi->dev,

			&soc_codec_dev_ssm2602, &ssm2602_dai, 1);

	if (ret < 0)

		kfree(ssm2602);

	return ret;

}



static int __devexit ssm2602_spi_remove(struct spi_device *spi)

{

	snd_soc_unregister_codec(&spi->dev);

	kfree(spi_get_drvdata(spi));

	return 0;

}



static struct spi_driver ssm2602_spi_driver = {

	.driver = {

		.name	= "ssm2602",

		.owner	= THIS_MODULE,

	},

	.probe		= ssm2602_spi_probe,

	.remove		= __devexit_p(ssm2602_spi_remove),

};

#endif



#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)

/*

 * ssm2602 2 wire address is determined by GPIO5
@@ -612,19 +650,29 @@ static struct i2c_driver ssm2602_i2c_driver = { 
static int __init ssm2602_modinit(void)

{

	int ret = 0;



#if defined(CONFIG_SPI_MASTER)

	ret = spi_register_driver(&ssm2602_spi_driver);

	if (ret)

		return ret;

#endif



#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)

	ret = i2c_add_driver(&ssm2602_i2c_driver);

	if (ret != 0) {

		printk(KERN_ERR "Failed to register SSM2602 I2C driver: %d\n",

		       ret);

	}

	if (ret)

		return ret;

#endif



	return ret;

}

module_init(ssm2602_modinit);



static void __exit ssm2602_exit(void)

{

#if defined(CONFIG_SPI_MASTER)

	spi_unregister_driver(&ssm2602_spi_driver);

#endif



#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)

	i2c_del_driver(&ssm2602_i2c_driver);

#endif