From mboxrd@z Thu Jan 1 00:00:00 1970 From: Olivier Moysan Subject: [PATCH 2/5] ASoC: stm32: sai: fix exposed capabilities in spdif mode Date: Thu, 28 Feb 2019 14:19:22 +0100 Message-ID: <1551359965-25228-3-git-send-email-olivier.moysan@st.com> References: <1551359965-25228-1-git-send-email-olivier.moysan@st.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1551359965-25228-1-git-send-email-olivier.moysan@st.com> Sender: linux-kernel-owner@vger.kernel.org To: lgirdwood@gmail.com, broonie@kernel.org, perex@perex.cz, tiwai@suse.com, mcoquelin.stm32@gmail.com, alexandre.torgue@st.com, alsa-devel@alsa-project.org, linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-kernel@vger.kernel.org, olivier.moysan@st.com, arnaud.pouliquen@st.com, benjamin.gaignard@st.com List-Id: alsa-devel@alsa-project.org 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 --- 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 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); -- 2.7.4