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| author | Mihai Serban <mihai.serban@nxp.com> | 2019-09-13 22:28:05 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-09-17 18:56:19 +0300 |
| commit | e75f4940e8ad0dd76527302a10c06b58bf7eb590 (patch) | |
| tree | 4aa03850072854d477181319f253cee00e92c9f0 /sound/soc/fsl/fsl_sai.h | |
| parent | fca11622d600228bec405456f41590155b3a3eca (diff) | |
| download | linux-e75f4940e8ad0dd76527302a10c06b58bf7eb590.tar.xz | |
ASoC: fsl_sai: Fix noise when using EDMA
EDMA requires the period size to be multiple of maxburst. Otherwise the
remaining bytes are not transferred and thus noise is produced.
We can handle this issue by adding a constraint on
SNDRV_PCM_HW_PARAM_PERIOD_SIZE to be multiple of tx/rx maxburst value.
Signed-off-by: Mihai Serban <mihai.serban@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/20190913192807.8423-2-daniel.baluta@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/fsl/fsl_sai.h')
| -rw-r--r-- | sound/soc/fsl/fsl_sai.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/fsl/fsl_sai.h b/sound/soc/fsl/fsl_sai.h index b12cb578f6d0..76b15deea80c 100644 --- a/sound/soc/fsl/fsl_sai.h +++ b/sound/soc/fsl/fsl_sai.h @@ -157,6 +157,7 @@ struct fsl_sai_soc_data { bool use_imx_pcm; + bool use_edma; unsigned int fifo_depth; unsigned int reg_offset; }; |