| Message ID | 20210125061453.1056535-1-tzungbi@google.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 339f6c73d5abe85550a0c962edc8a5df1f2b4273 |
| Headers | show |
| Series | [v2] ASoC: mediatek: mt8192-mt6359: add format constraints for RT5682 | expand |
On Mon, 25 Jan 2021 14:14:53 +0800, Tzung-Bi Shih wrote: > MT8192 determines the I2S clock rates according to the sampling rates. > > There is only 1 set of I2S in between MT8192 and RT5682. If playing and > capturing via RT5682 in different sampling rates, the I2S data will be > corrupted. > > Adds format constraints to the corresponding DAI links to make sure the > sampling rates are symmetric. Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next Thanks! [1/1] ASoC: mediatek: mt8192-mt6359: add format constraints for RT5682 commit: 339f6c73d5abe85550a0c962edc8a5df1f2b4273 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
diff --git a/sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c b/sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c index cc0fc72305d2..c368236d8a3a 100644 --- a/sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c +++ b/sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c @@ -410,6 +410,53 @@ static const struct snd_soc_ops mt8192_mt6359_rt1015_rt5682_capture1_ops = { .startup = mt8192_mt6359_rt1015_rt5682_cap1_startup, }; +static int +mt8192_mt6359_rt5682_startup(struct snd_pcm_substream *substream) +{ + static const unsigned int channels[] = { + 1, 2 + }; + static const struct snd_pcm_hw_constraint_list constraints_channels = { + .count = ARRAY_SIZE(channels), + .list = channels, + .mask = 0, + }; + static const unsigned int rates[] = { + 48000 + }; + static const struct snd_pcm_hw_constraint_list constraints_rates = { + .count = ARRAY_SIZE(rates), + .list = rates, + .mask = 0, + }; + + struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); + struct snd_pcm_runtime *runtime = substream->runtime; + int ret; + + ret = snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_CHANNELS, + &constraints_channels); + if (ret < 0) { + dev_err(rtd->dev, "hw_constraint_list channels failed\n"); + return ret; + } + + ret = snd_pcm_hw_constraint_list(runtime, 0, + SNDRV_PCM_HW_PARAM_RATE, + &constraints_rates); + if (ret < 0) { + dev_err(rtd->dev, "hw_constraint_list rate failed\n"); + return ret; + } + + return 0; +} + +static const struct snd_soc_ops mt8192_mt6359_rt5682_ops = { + .startup = mt8192_mt6359_rt5682_startup, +}; + /* FE */ SND_SOC_DAILINK_DEFS(playback1, DAILINK_COMP_ARRAY(COMP_CPU("DL1")), @@ -657,6 +704,7 @@ static struct snd_soc_dai_link mt8192_mt6359_dai_links[] = { SND_SOC_DPCM_TRIGGER_PRE}, .dynamic = 1, .dpcm_playback = 1, + .ops = &mt8192_mt6359_rt5682_ops, SND_SOC_DAILINK_REG(playback3), }, { @@ -730,6 +778,7 @@ static struct snd_soc_dai_link mt8192_mt6359_dai_links[] = { SND_SOC_DPCM_TRIGGER_PRE}, .dynamic = 1, .dpcm_capture = 1, + .ops = &mt8192_mt6359_rt5682_ops, SND_SOC_DAILINK_REG(capture2), }, {
MT8192 determines the I2S clock rates according to the sampling rates. There is only 1 set of I2S in between MT8192 and RT5682. If playing and capturing via RT5682 in different sampling rates, the I2S data will be corrupted. Adds format constraints to the corresponding DAI links to make sure the sampling rates are symmetric. Fixes: 18b13ff23fab ("ASoC: mediatek: mt8192: add machine driver with mt6359, rt1015 and rt5682") Signed-off-by: Tzung-Bi Shih <tzungbi@google.com> --- Changes from previous version: - Separated from the series [1] per [2]. - Updated commit message for more details. [1]: https://patchwork.kernel.org/project/alsa-devel/list/?series=419769 [2]: https://patchwork.kernel.org/project/alsa-devel/patch/20210122100742.3699128-2-tzungbi@google.com/#23919795 .../mt8192/mt8192-mt6359-rt1015-rt5682.c | 49 +++++++++++++++++++ 1 file changed, 49 insertions(+)