diff mbox series

[2/5] ASoC: stm32: sai: fix exposed capabilities in spdif mode

Message ID 1551359965-25228-3-git-send-email-olivier.moysan@st.com (mailing list archive)
State Accepted
Commit b8468192971807c43a80d6e2c41f83141cb7b211
Headers show
Series ASoC: stm32: sai: miscellaneous fixes | expand

Commit Message

Olivier MOYSAN Feb. 28, 2019, 1:19 p.m. UTC
Change capabilities exposed in SAI S/PDIF mode, to match
actually supported formats.
In S/PDIF mode only 32 bits stereo is supported.

Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
---
 sound/soc/stm/stm32_sai_sub.c | 8 ++++++++
 1 file changed, 8 insertions(+)
diff mbox series

Patch

diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index 506360b7bc01..e418f446e03b 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -682,6 +682,14 @@  static int stm32_sai_startup(struct snd_pcm_substream *substream,
 
 	sai->substream = substream;
 
+	if (STM_SAI_PROTOCOL_IS_SPDIF(sai)) {
+		snd_pcm_hw_constraint_mask64(substream->runtime,
+					     SNDRV_PCM_HW_PARAM_FORMAT,
+					     SNDRV_PCM_FMTBIT_S32_LE);
+		snd_pcm_hw_constraint_single(substream->runtime,
+					     SNDRV_PCM_HW_PARAM_CHANNELS, 2);
+	}
+
 	ret = clk_prepare_enable(sai->sai_ck);
 	if (ret < 0) {
 		dev_err(cpu_dai->dev, "Failed to enable clock: %d\n", ret);