[PATCH 0/2] ASoC: mediatek: mt8183: Two AFE fixes

[HuskerMinion via B4 Relay]

These two fixes came up while bringing up mainline Linux on the Amazon
Echo Show 8 (2nd gen), an MT8183 board.

Patch 1 is the important one. On this board the AFE never ran. Runtime
resume enabled the audiosys clock gates while the regmap was still
cache-only, so the gate writes were dropped. With the fix, playback and
capture work on the device.

Patch 2 fixes a wrong register in the UL1_CH2 mixer. I found it while
adding capture routes for the device's microphones. The Echo Show does
not use I2S0, so that path is compile tested only.

I do not know why MT8183 Chromebooks do not seem to hit this. I have no
Chromebook to test on. My guess is that something else keeps the gates
open there, but I have not confirmed it.

Patch 1 was tested on the device with a 6.18 based kernel. Both were
then rebased onto for-next and build tested there.

Runtime suspend has the mirror problem. It goes cache-only before
mt8183_afe_disable_clock(), so those gate writes are dropped as well
and the gates stay open after the first use. I left that alone because
I have not tested a change there. I can send a patch if you want it
handled the same way.

---
HuskerMinion (2):
      ASoC: mediatek: mt8183: Leave cache-only mode before enabling clocks
      ASoC: mediatek: mt8183: Fix UL1_CH2 I2S0_CH2 routing register

 sound/soc/mediatek/mt8183/mt8183-afe-pcm.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)
---
base-commit: 764db7a068919c9e3d4618731dd854df43070399
change-id: 20261015-mt8183-afe-fixes-94ee941c3fd0

Best regards,
--  
HuskerMinion <mocker-mug-unwoven@xxxxxxxx>