[alsa-devel] [PATCH] ASoC: pxa-ssp: enable and disable extclk if given

[Daniel Mack]

If a "extclk" clock is given, enable and disable it when appropriate.

Signed-off-by: Daniel Mack <daniel at zonque.org>
---
 sound/soc/pxa/pxa-ssp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c
index 69033e1a84e6..adcf8ba9d287 100644
--- a/sound/soc/pxa/pxa-ssp.c
+++ b/sound/soc/pxa/pxa-ssp.c
@@ -103,6 +103,9 @@ static int pxa_ssp_startup(struct snd_pcm_substream *substream,
 		pxa_ssp_disable(ssp);
 	}
 
+	if (priv->extclk)
+		clk_prepare_enable(priv->extclk);
+
 	dma = kzalloc(sizeof(struct snd_dmaengine_dai_dma_data), GFP_KERNEL);
 	if (!dma)
 		return -ENOMEM;
@@ -125,6 +128,9 @@ static void pxa_ssp_shutdown(struct snd_pcm_substream *substream,
 		clk_disable_unprepare(ssp->clk);
 	}
 
+	if (priv->extclk)
+		clk_disable_unprepare(priv->extclk);
+
 	kfree(snd_soc_dai_get_dma_data(cpu_dai, substream));
 	snd_soc_dai_set_dma_data(cpu_dai, substream, NULL);
 }
-- 
2.17.1