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authorOlivier Moysan <olivier.moysan@st.com>2019-05-06 14:44:04 +0200
committerMark Brown <broonie@kernel.org>2019-05-06 23:46:23 +0900
commit863137f0bc5eb2a3a65d1d29778ac65642171b17 (patch)
tree0a41ba437cbe2b7f3ef1ecfa54c5728a5a6136c7 /sound/soc/stm
parentecb2795c08bc825ebd604997e5be440b060c5b18 (diff)
downloadlinux-863137f0bc5eb2a3a65d1d29778ac65642171b17.tar.bz2
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 <olivier.moysan@st.com> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/stm')
-rw-r--r--sound/soc/stm/stm32_spdifrx.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/sound/soc/stm/stm32_spdifrx.c b/sound/soc/stm/stm32_spdifrx.c
index b4c3d983e195..aa83b50efabb 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,
};