To ensure that DPCM takes into account the backend hardware limitations when user space queries the hw_params of a device, we need to add dpcm_merged_format, dpcm_merged_chan, and dpcm_merged_rate to the FE dai_links.

This patch includes only stereo FE dai_links, since multi-channel FEs may be reserved for specific purposes. Therefore, it may not be appropriate to consider BE conditions.

Signed-off-by: Trevor Wu trevor.wu@mediatek.com --- sound/soc/mediatek/mt8188/mt8188-mt6359.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)

diff --git a/sound/soc/mediatek/mt8188/mt8188-mt6359.c b/sound/soc/mediatek/mt8188/mt8188-mt6359.c index ac69c23e0da1..7c9e08e6a4f5 100644 --- a/sound/soc/mediatek/mt8188/mt8188-mt6359.c +++ b/sound/soc/mediatek/mt8188/mt8188-mt6359.c @@ -723,6 +723,9 @@ static struct snd_soc_dai_link mt8188_mt6359_dai_links[] = { }, .dynamic = 1, .dpcm_playback = 1, + .dpcm_merged_chan = 1, + .dpcm_merged_rate = 1, + .dpcm_merged_format = 1, SND_SOC_DAILINK_REG(playback2), }, [DAI_LINK_DL3_FE] = { @@ -734,6 +737,9 @@ static struct snd_soc_dai_link mt8188_mt6359_dai_links[] = { }, .dynamic = 1, .dpcm_playback = 1, + .dpcm_merged_chan = 1, + .dpcm_merged_rate = 1, + .dpcm_merged_format = 1, SND_SOC_DAILINK_REG(playback3), }, [DAI_LINK_DL6_FE] = { @@ -745,6 +751,9 @@ static struct snd_soc_dai_link mt8188_mt6359_dai_links[] = { }, .dynamic = 1, .dpcm_playback = 1, + .dpcm_merged_chan = 1, + .dpcm_merged_rate = 1, + .dpcm_merged_format = 1, SND_SOC_DAILINK_REG(playback6), }, [DAI_LINK_DL7_FE] = { @@ -833,6 +842,9 @@ static struct snd_soc_dai_link mt8188_mt6359_dai_links[] = { }, .dynamic = 1, .dpcm_capture = 1, + .dpcm_merged_chan = 1, + .dpcm_merged_rate = 1, + .dpcm_merged_format = 1, SND_SOC_DAILINK_REG(capture4), }, [DAI_LINK_UL5_FE] = { @@ -844,6 +856,9 @@ static struct snd_soc_dai_link mt8188_mt6359_dai_links[] = { }, .dynamic = 1, .dpcm_capture = 1, + .dpcm_merged_chan = 1, + .dpcm_merged_rate = 1, + .dpcm_merged_format = 1, SND_SOC_DAILINK_REG(capture5), }, [DAI_LINK_UL6_FE] = {