lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ASoC: Add SPI support for WM8741

Browse Source 
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@ti.com>
This commit is contained in:
Mark Brown
2011-08-03 17:30:57 +09:00
parent 398575db00
commit 39e9b8d25d
1 changed files with 48 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
sound/soc/codecs/wm8741.c
View File

@@ -17,6 +17,7 @@
#include <linux/delay.h> #include <linux/delay.h>
#include <linux/pm.h> #include <linux/pm.h>
#include <linux/i2c.h> #include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/regulator/consumer.h> #include <linux/regulator/consumer.h>
#include <linux/slab.h> #include <linux/slab.h>
@@ -547,6 +548,43 @@ static struct i2c_driver wm8741_i2c_driver = {
}; };
#endif #endif
#if defined(CONFIG_SPI_MASTER)
static int __devinit wm8741_spi_probe(struct spi_device *spi)
{
struct wm8741_priv *wm8741;
int ret;
wm8741 = kzalloc(sizeof(struct wm8741_priv), GFP_KERNEL);
if (wm8741 == NULL)
return -ENOMEM;
wm8741->control_type = SND_SOC_SPI;
spi_set_drvdata(spi, wm8741);
ret = snd_soc_register_codec(&spi->dev,
&soc_codec_dev_wm8741, &wm8741_dai, 1);
if (ret < 0)
kfree(wm8741);
return ret;
}
static int __devexit wm8741_spi_remove(struct spi_device *spi)
{
snd_soc_unregister_codec(&spi->dev);
kfree(spi_get_drvdata(spi));
return 0;
}
static struct spi_driver wm8741_spi_driver = {
.driver = {
.name = "wm8741",
.owner = THIS_MODULE,
},
.probe = wm8741_spi_probe,
.remove = __devexit_p(wm8741_spi_remove),
};
#endif /* CONFIG_SPI_MASTER */
static int __init wm8741_modinit(void) static int __init wm8741_modinit(void)
{ {
int ret = 0; int ret = 0;
@@ -556,6 +594,13 @@ static int __init wm8741_modinit(void)
if (ret != 0) if (ret != 0)
pr_err("Failed to register WM8741 I2C driver: %d\n", ret); pr_err("Failed to register WM8741 I2C driver: %d\n", ret);
#endif #endif
#if defined(CONFIG_SPI_MASTER)
ret = spi_register_driver(&wm8741_spi_driver);
if (ret != 0) {
printk(KERN_ERR "Failed to register wm8741 SPI driver: %d\n",
ret);
}
#endif
return ret; return ret;
} }
@@ -563,6 +608,9 @@ module_init(wm8741_modinit);
static void __exit wm8741_exit(void) static void __exit wm8741_exit(void)
{ {
#if defined(CONFIG_SPI_MASTER)
spi_unregister_driver(&wm8741_spi_driver);
#endif
#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE) #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
i2c_del_driver(&wm8741_i2c_driver); i2c_del_driver(&wm8741_i2c_driver);
#endif #endif