From c37f7344075a424fd4c70f0710a4feeed7ac1fb1 Mon Sep 17 00:00:00 2001 From: Olivier Moysan Date: Thu, 28 Feb 2019 14:19:22 +0100 Subject: [PATCH] ASoC: stm32: sai: fix exposed capabilities in spdif mode [ Upstream commit b8468192971807c43a80d6e2c41f83141cb7b211 ] 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 Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- sound/soc/stm/stm32_sai_sub.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c index e8df3cc..2fb2b91 100644 --- a/sound/soc/stm/stm32_sai_sub.c +++ b/sound/soc/stm/stm32_sai_sub.c @@ -498,6 +498,14 @@ 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); -- 2.7.4