diff options
| author | Mike Frysinger <vapier@gentoo.org> | 2011-04-07 08:05:11 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2011-04-08 02:24:24 +0200 |
| commit | b39e285545a2bd7f331a53b32c8c40748fdd348e (patch) | |
| tree | 32687fa861efc69b44bb316719d84d99dca3778d /sound/soc | |
| parent | ASoC: Add data based control initialisation for CODECs and cards (diff) | |
| download | linux-b39e285545a2bd7f331a53b32c8c40748fdd348e.tar.xz linux-b39e285545a2bd7f331a53b32c8c40748fdd348e.zip | |
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: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/Kconfig | 2 | ||||
| -rw-r--r-- | sound/soc/codecs/ssm2602.c | 56 |
2 files changed, 53 insertions, 5 deletions
diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig index 78da05b5e5eb..ee7374e8e97e 100644 --- a/sound/soc/codecs/Kconfig +++ b/sound/soc/codecs/Kconfig @@ -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 diff --git a/sound/soc/codecs/ssm2602.c b/sound/soc/codecs/ssm2602.c index 8a2b52fa4a7e..7e2194975360 100644 --- a/sound/soc/codecs/ssm2602.c +++ b/sound/soc/codecs/ssm2602.c @@ -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 |