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author | Dmitry Baryshkov <dbaryshkov@gmail.com> | 2008-08-30 20:45:02 (GMT) |
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committer | Takashi Iwai <tiwai@suse.de> | 2008-09-01 06:34:46 (GMT) |
commit | 6e5ea7015c62b672020ee0a7c2764942fe63fa25 (patch) | |
tree | a5302ce6e74c68f3bc9cb5ae92e7d25e3a7622db /sound | |
parent | 20f5f95ded9cdab62c26efb146967a75e12533ec (diff) | |
download | linux-6e5ea7015c62b672020ee0a7c2764942fe63fa25.tar.xz |
ALSA: ASoC: fix pxa2xx-i2s clk_get call
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>
Diffstat (limited to 'sound')
-rw-r--r-- | sound/soc/pxa/pxa2xx-i2s.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c index 8548818..c796b18 100644 --- a/sound/soc/pxa/pxa2xx-i2s.c +++ b/sound/soc/pxa/pxa2xx-i2s.c @@ -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"); |