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ASoC: Only disable pxa2xx-i2s clocks if we enabled them

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The clock API can't cope with unbalanced enables and disables and
we only enable in hw_params() but try to disable in shutdown.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown 2009-07-01 18:23:26 +01:00
parent 1bdd741991
commit da9ff1f796
1 changed files with 6 additions and 1 deletions
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7
sound/soc/pxa/pxa2xx-i2s.c
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@ -167,6 +167,7 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
BUG_ON(IS_ERR(clk_i2s));
clk_enable(clk_i2s);
dai->private_data = dai;
pxa_i2s_wait();
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
@ -255,7 +256,10 @@ static void pxa2xx_i2s_shutdown(struct snd_pcm_substream *substream,
if ((SACR1 & (SACR1_DREC | SACR1_DRPL)) == (SACR1_DREC | SACR1_DRPL)) {
SACR0 &= ~SACR0_ENB;
pxa_i2s_wait();
clk_disable(clk_i2s);
if (dai->private_data != NULL) {
clk_disable(clk_i2s);
dai->private_data = NULL;
}
}
}
@ -336,6 +340,7 @@ static int pxa2xx_i2s_probe(struct platform_device *dev)
return PTR_ERR(clk_i2s);
pxa_i2s_dai.dev = &dev->dev;
pxa_i2s_dai.private_data = NULL;
ret = snd_soc_register_dai(&pxa_i2s_dai);
if (ret != 0)
clk_put(clk_i2s);