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Unverified Commit 4fc19fff authored by Olivier Moysan's avatar Olivier Moysan Committed by Mark Brown
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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: default avatarOlivier Moysan <olivier.moysan@st.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 939507f2

sound/soc/stm/stm32_i2s.c

+2 −1
Original line number Diff line number Diff line
@@ -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,

};