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ALSA: ASoC: fix pxa2xx-i2s clk_get call

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pxa2xx-i2s: probe actual device and use it for clk_get call
thus fixing error during startup hook

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Dmitry Baryshkov 2008-08-31 00:45:02 +04:00 committed by Takashi Iwai
parent 20f5f95ded
commit 6e5ea7015c
1 changed files with 39 additions and 1 deletions
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40
sound/soc/pxa/pxa2xx-i2s.c
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@ -16,6 +16,7 @@
#include <linux/device.h>
#include <linux/delay.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/initval.h>
@ -81,7 +82,6 @@ static int pxa2xx_i2s_startup(struct snd_pcm_substream *substream)
struct snd_soc_pcm_runtime *rtd = substream->private_data;
struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
clk_i2s = clk_get(NULL, "I2SCLK");
if (IS_ERR(clk_i2s))
return PTR_ERR(clk_i2s);
@ -152,6 +152,7 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
pxa_gpio_mode(gpio_bus[pxa_i2s.master].tx);
pxa_gpio_mode(gpio_bus[pxa_i2s.master].frm);
pxa_gpio_mode(gpio_bus[pxa_i2s.master].clk);
BUG_ON(IS_ERR(clk_i2s));
clk_enable(clk_i2s);
pxa_i2s_wait();
@ -317,6 +318,43 @@ struct snd_soc_dai pxa_i2s_dai = {
EXPORT_SYMBOL_GPL(pxa_i2s_dai);
static int pxa2xx_i2s_probe(struct platform_device *dev)
{
clk_i2s = clk_get(&dev->dev, "I2SCLK");
return IS_ERR(clk_i2s) ? PTR_ERR(clk_i2s) : 0;
}
static int __devexit pxa2xx_i2s_remove(struct platform_device *dev)
{
clk_put(clk_i2s);
clk_i2s = ERR_PTR(-ENOENT);
return 0;
}
static struct platform_driver pxa2xx_i2s_driver = {
.probe = pxa2xx_i2s_probe,
.remove = __devexit_p(pxa2xx_i2s_remove),
.driver = {
.name = "pxa2xx-i2s",
.owner = THIS_MODULE,
},
};
static int __init pxa2xx_i2s_init(void)
{
clk_i2s = ERR_PTR(-ENOENT);
return platform_driver_register(&pxa2xx_i2s_driver);
}
static void __exit pxa2xx_i2s_exit(void)
{
platform_driver_unregister(&pxa2xx_i2s_driver);
}
module_init(pxa2xx_i2s_init);
module_exit(pxa2xx_i2s_exit);
/* Module information */
MODULE_AUTHOR("Liam Girdwood, liam.girdwood@wolfsonmicro.com, www.wolfsonmicro.com");
MODULE_DESCRIPTION("pxa2xx I2S SoC Interface");