ASoC: Intel: Clear stored Baytrail DSP DMA pointer before stream start

Stored DSP DMA pointer must be cleared before starting the stream since
PCM pointer callback sst_byt_pcm_pointer() can be called before pointer is
updated. In that case last position of previous stream was wronly returned.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/sound/soc/intel/sst-baytrail-pcm.c b/sound/soc/intel/sst-baytrail-pcm.c
index 3af38576e91e..8eab97368ea7 100644
--- a/sound/soc/intel/sst-baytrail-pcm.c
+++ b/sound/soc/intel/sst-baytrail-pcm.c
@@ -180,6 +180,7 @@ static int sst_byt_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 
         switch (cmd) {
         case SNDRV_PCM_TRIGGER_START:
+                pcm_data->hw_ptr = 0;
                 sst_byt_stream_start(byt, pcm_data->stream, 0);
                 break;
         case SNDRV_PCM_TRIGGER_RESUME: