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Diffstat (limited to 'sound/soc/davinci/davinci-mcasp.c')
-rw-r--r--sound/soc/davinci/davinci-mcasp.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 0a302e1080d9..a613bbb0bc91 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -767,14 +767,27 @@ static int davinci_mcasp_trigger(struct snd_pcm_substream *substream,
int ret = 0;
switch (cmd) {
- case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
+ if (!dev->clk_active) {
+ clk_enable(dev->clk);
+ dev->clk_active = 1;
+ }
+ /* Fall through */
+ case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
davinci_mcasp_start(dev, substream->stream);
break;
- case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_SUSPEND:
+ davinci_mcasp_stop(dev, substream->stream);
+ if (dev->clk_active) {
+ clk_disable(dev->clk);
+ dev->clk_active = 0;
+ }
+
+ break;
+
+ case SNDRV_PCM_TRIGGER_STOP:
case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
davinci_mcasp_stop(dev, substream->stream);
break;
@@ -866,6 +879,7 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
}
clk_enable(dev->clk);
+ dev->clk_active = 1;
dev->base = (void __iomem *)IO_ADDRESS(mem->start);
dev->op_mode = pdata->op_mode;