The i2s ports on MediaTek SoCs only support a single data lane. In order to achieve full-duplex operation thus two i2s ports, one for input and one for output, need to be used together and sharing a single clock from one of the ports.
This clock sharing setting was previously read by the sound platform driver from the devicetree, but given that the input/output pairing is closely related to which codecs are connected to which ports, the machine sound driver can infer and set it, so that no DT property is required.
At this point only mt8183-kukui was using the DT property, but given that this property was never documented, and that the API introduced in this series makes it obsolete, the undocumented DT property can safely be removed.
This series adds a function to allow setting the i2s shared clocks, makes use of it in the machine drivers as required, and removes the no longer required DT properties and support for them in the drivers, for all of mt8192, mt8183 and mt8186.
Nícolas F. R. A. Prado (10): ASoC: mediatek: mt8192: Allow setting shared clocks from machine driver ASoC: mediatek: mt8192-mt6359: Make i2s9 share the clock from i2s8 ASoC: mediatek: mt8192: Remove clock share parsing from DT ASoC: mediatek: mt8183: Allow setting shared clocks from machine driver ASoC: mediatek: mt8183: Configure shared clocks ASoC: mediatek: mt8183: Remove clock share parsing from DT arm64: dts: mediatek: kukui: Remove i2s-share properties ASoC: mediatek: mt8186: Allow setting shared clocks from machine driver ASoC: mediatek: mt8186: Configure shared clocks ASoC: mediatek: mt8186: Remove clock share parsing from DT
.../arm64/boot/dts/mediatek/mt8183-kukui.dtsi | 5 -- sound/soc/mediatek/mt8183/mt8183-afe-common.h | 3 ++ .../mediatek/mt8183/mt8183-da7219-max98357.c | 33 +++++++++++++ sound/soc/mediatek/mt8183/mt8183-dai-i2s.c | 45 ++++++++--------- .../mt8183/mt8183-mt6358-ts3a227-max98357.c | 33 +++++++++++++ sound/soc/mediatek/mt8186/mt8186-afe-common.h | 3 ++ sound/soc/mediatek/mt8186/mt8186-dai-i2s.c | 44 ++++++++--------- .../mt8186/mt8186-mt6366-da7219-max98357.c | 18 +++++++ .../mt8186/mt8186-mt6366-rt1019-rt5682s.c | 18 +++++++ sound/soc/mediatek/mt8192/mt8192-afe-common.h | 3 ++ sound/soc/mediatek/mt8192/mt8192-dai-i2s.c | 49 ++++++++----------- .../mt8192/mt8192-mt6359-rt1015-rt5682.c | 9 ++++ 12 files changed, 180 insertions(+), 83 deletions(-)