[PATCH 03/10] mx-ssi: flush fifos

Markus Pargmann mpa at pengutronix.de
Sun Mar 10 14:33:04 EDT 2013


From: Sascha Hauer <s.hauer at pengutronix.de>

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
Signed-off-by: Markus Pargmann <mpa at pengutronix.de>
---
 sound/soc/fsl/imx-ssi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c
index 0e3fc8d..96e24a3 100644
--- a/sound/soc/fsl/imx-ssi.c
+++ b/sound/soc/fsl/imx-ssi.c
@@ -347,6 +347,11 @@ static int imx_ssi_trigger(struct snd_pcm_substream *substream, int cmd,
 		/* rx/tx are always enabled to access ac97 registers */
 		writel(scr, ssi->base + SSI_SCR);
 
+	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+		writel(SSI_SOR_TX_CLR, ssi->base + SSI_SOR);
+	else
+		writel(SSI_SOR_RX_CLR, ssi->base + SSI_SOR);
+
 	writel(sier, ssi->base + SSI_SIER);
 
 	return 0;
-- 
1.8.1.5




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