MLK-24753-2: ASoC: fsl_esai_mix: get pointer from dma driver directly

Previously update pointer in mix function according to dma callback,
which is not accurate for the callback maybe triggerred very late, that
cause the read pointer and write pointer point to same period, then
there is noise in output.
So get pointer directly from dma driver to avoid such issue.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Peng Zhang <peng.zhang_8@nxp.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/sound/soc/fsl/fsl_esai_mix.h b/sound/soc/fsl/fsl_esai_mix.h
index ee69d2daf70c..c7d2c74d0bcd 100644
--- a/sound/soc/fsl/fsl_esai_mix.h
+++ b/sound/soc/fsl/fsl_esai_mix.h
@@ -31,6 +31,7 @@ struct fsl_esai_mix {
 	struct workqueue_struct  *mix_wq;
 	struct work_struct       work;
 	struct snd_pcm_substream *substream;
+	dma_cookie_t cookie;
 	u32 buffer_read_offset;
 	u32 buffer_write_offset;
 	u32 buffer_bytes;