[PATCH] ASoC: amd: Fix for Subsequent Playback issue.

From: Ravulapati Vishnu vardhan rao
Date: Tue Jan 21 2020 - 05:45:48 EST


If we play audio back to back, which kills one playback
and immediately start another, we can hear clicks.
This patch fixes the issue.

Signed-off-by: Ravulapati Vishnu vardhan rao <Vishnuvardhanrao.Ravulapati@xxxxxxx>
---
sound/soc/amd/raven/acp3x-pcm-dma.c | 17 ++++++++++-------
1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index 5c3ec3c..916649a 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -344,25 +344,28 @@ static int acp3x_dma_close(struct snd_soc_component *component,
{
struct snd_soc_pcm_runtime *prtd;
struct i2s_dev_data *adata;
+ struct i2s_stream_instance *rtd;

prtd = substream->private_data;
component = snd_soc_rtdcom_lookup(prtd, DRV_NAME);
adata = dev_get_drvdata(component->dev);
+ rtd = substream->runtime->private_data;

- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
- adata->play_stream = NULL;
- adata->i2ssp_play_stream = NULL;
- } else {
- adata->capture_stream = NULL;
- adata->i2ssp_capture_stream = NULL;
- }

/* Disable ACP irq, when the current stream is being closed and
* another stream is also not active.
*/
+ kfree(rtd);
if (!adata->play_stream && !adata->capture_stream &&
!adata->i2ssp_play_stream && !adata->i2ssp_capture_stream)
rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB);
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ adata->play_stream = NULL;
+ adata->i2ssp_play_stream = NULL;
+ } else {
+ adata->capture_stream = NULL;
+ adata->i2ssp_capture_stream = NULL;
+ }
return 0;
}

--
2.7.4