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    Subject[PATCH AUTOSEL 4.19 05/53] ASoC: stm32: sai: fix exposed capabilities in spdif mode
    Date
    From: Olivier Moysan <olivier.moysan@st.com>

    [ 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 <olivier.moysan@st.com>
    Signed-off-by: Mark Brown <broonie@kernel.org>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    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 606614649c04..1a8939f06ff8 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);
    --
    2.19.1
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