| Message ID | 1605062722-8711-1-git-send-email-jiaxin.yu@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [v2] ASoC: mediatek: mt8192: skip first time data at the beginning of DMIC recording | expand |
On Wed, 11 Nov 2020 10:45:22 +0800, Jiaxin Yu wrote: > We can choose to drop away any length of data from the beginning according > to project needs. Some projects don't want to throw away any data, because > they want to use recorded data to do echo cancellation, so they have to > make sure that they are aligned with the reference data as much as > possible. Or there are other algorithms in the upper layer to eliminate > this noise. Or some projects want to eliminate this noise form the kernel > layer. However, the minimum recommended value is 50ms to skip pop noise. Applied to https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next Thanks! [1/1] ASoC: mediatek: mt8192: skip first time data at the beginning of DMIC recording commit: 2aff94e47da2e2006ceb53c00247218ea8a72770 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/Kconfig b/sound/soc/mediatek/Kconfig index dc628fb6c1025..31f1431bf5792 100644 --- a/sound/soc/mediatek/Kconfig +++ b/sound/soc/mediatek/Kconfig @@ -175,6 +175,7 @@ config SND_SOC_MT8192_MT6359_RT1015_RT5682 select SND_SOC_MT6359 select SND_SOC_RT1015 select SND_SOC_RT5682_I2C + select SND_SOC_DMIC help This adds ASoC driver for Mediatek MT8192 boards with the MT6359 RT1015 RT5682 audio codec. diff --git a/sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c b/sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c index 41d8a8567bb38..b7f42a530d069 100644 --- a/sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c +++ b/sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c @@ -540,7 +540,9 @@ SND_SOC_DAILINK_DEFS(playback_hdmi, SND_SOC_DAILINK_DEFS(primary_codec, DAILINK_COMP_ARRAY(COMP_CPU("ADDA")), DAILINK_COMP_ARRAY(COMP_CODEC("mt6359-sound", - "mt6359-snd-codec-aif1")), + "mt6359-snd-codec-aif1"), + COMP_CODEC("dmic-codec", + "dmic-hifi")), DAILINK_COMP_ARRAY(COMP_EMPTY())); SND_SOC_DAILINK_DEFS(primary_codec_ch34,
We can choose to drop away any length of data from the beginning according to project needs. Some projects don't want to throw away any data, because they want to use recorded data to do echo cancellation, so they have to make sure that they are aligned with the reference data as much as possible. Or there are other algorithms in the upper layer to eliminate this noise. Or some projects want to eliminate this noise form the kernel layer. However, the minimum recommended value is 50ms to skip pop noise. Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com> --- This seems like something that would apply equally to all DMICs so should be done at a more general level, so we implement it in the DMIC driver. sound/soc/mediatek/Kconfig | 1 + sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c | 4 +++- 2 files changed, 4 insertions(+), 1 deletion(-)