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| author | Olivier Moysan <olivier.moysan@st.com> | 2019-05-06 14:54:11 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-05-08 17:13:38 +0900 |
| commit | 4fc19fffaaf87335aafaeb059a561ef91aa6031c (patch) | |
| tree | ff26237dd3a9413702fbbe8882cfcd9c86dca5f0 /sound | |
| parent | 939507f2779836919271ba0311723d1001d3993b (diff) | |
| download | lwn-4fc19fffaaf87335aafaeb059a561ef91aa6031c.tar.gz lwn-4fc19fffaaf87335aafaeb059a561ef91aa6031c.zip | |
ASoC: stm32: i2s: update pcm hardware constraints
- Set period minimum size. Ensure at least 5ms period
up to 48kHz/16 bits to prevent underrun/overrun.
- Remove MDMA constraints on period maximum size and
set period maximum to half the buffer maximum size.
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/stm/stm32_i2s.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/stm/stm32_i2s.c b/sound/soc/stm/stm32_i2s.c index 97d5e9901a0e..8ee697ff1f86 100644 --- a/sound/soc/stm/stm32_i2s.c +++ b/sound/soc/stm/stm32_i2s.c @@ -731,7 +731,8 @@ static const struct snd_soc_dai_ops stm32_i2s_pcm_dai_ops = { static const struct snd_pcm_hardware stm32_i2s_pcm_hw = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP, .buffer_bytes_max = 8 * PAGE_SIZE, - .period_bytes_max = 2048, + .period_bytes_min = 1024, + .period_bytes_max = 4 * PAGE_SIZE, .periods_min = 2, .periods_max = 8, }; |