From: Olivier Moysan Date: Mon, 6 May 2019 12:44:04 +0000 (+0200) Subject: ASoC: stm32: spdifrx: update pcm hardware constraints X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=863137f0bc5eb2a3a65d1d29778ac65642171b17;p=linux.git ASoC: stm32: spdifrx: 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 Signed-off-by: Mark Brown --- diff --git a/sound/soc/stm/stm32_spdifrx.c b/sound/soc/stm/stm32_spdifrx.c index b4c3d983e195e..aa83b50efabba 100644 --- a/sound/soc/stm/stm32_spdifrx.c +++ b/sound/soc/stm/stm32_spdifrx.c @@ -845,7 +845,8 @@ static struct snd_soc_dai_driver stm32_spdifrx_dai[] = { static const struct snd_pcm_hardware stm32_spdifrx_pcm_hw = { .info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP, .buffer_bytes_max = 8 * PAGE_SIZE, - .period_bytes_max = 2048, /* MDMA constraint */ + .period_bytes_min = 1024, + .period_bytes_max = 4 * PAGE_SIZE, .periods_min = 2, .periods_max = 8, };