[PATCH] ASoC: mediatek: mt8188: DPCM used FE and BE merged parameters

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 <redacted>
---
 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] = {

-- 
2.18.0


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On Thu, 06 Jul 2023 14:41:23 +0800, Trevor Wu wrote:

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.

[...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next

Thanks!

[1/1] ASoC: mediatek: mt8188: DPCM used FE and BE merged parameters
      commit: 30019d220cf9ec4df4e5f5d9082baf5519516018

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark


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