diff options
| author | Shengjiu Wang <shengjiu.wang@nxp.com> | 2018-07-24 14:10:55 +0800 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | adc554ea011c1ae3ef32a3541d00a9209a903087 (patch) | |
| tree | 2df495713752d2ab80edde1cdd0f927a46e7ee56 /sound | |
| parent | 2800e4023e9070e645081b897fb8e9bbb99f99b5 (diff) | |
MLK-18874: ASoC: fsl_asrc: fix noise issue with 5 channel conversion
The dma_len is the size that how many data dma should transmit. As
the asrc use channel as unit, so the dma_len should also in channel unit.
Otherwise the output data is not align in channel, there will be noise.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Cosmin-Gabriel Samoila <cosmin.samoila@nxp.com>
(cherry picked from commit ed8ee98002cac3ba0ba51aea3dca99344bc7e503)
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/fsl/fsl_asrc_m2m.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/soc/fsl/fsl_asrc_m2m.c b/sound/soc/fsl/fsl_asrc_m2m.c index cfe8eee8e886..9f0314970cbb 100644 --- a/sound/soc/fsl/fsl_asrc_m2m.c +++ b/sound/soc/fsl/fsl_asrc_m2m.c @@ -279,8 +279,11 @@ static int fsl_asrc_prepare_io_buffer(struct fsl_asrc_pair *pair, return -EFAULT; *dma_len = buf_len; - if (dir == OUT) + if (dir == OUT) { *dma_len -= last_period_size * word_size * pair->channels; + *dma_len = *dma_len / (word_size * pair->channels) * + (word_size * pair->channels); + } *sg_nodes = *dma_len / ASRC_MAX_BUFFER_SIZE + 1; |