ASoC: qcom: lpass-cpu: mark HDMI TX registers as volatile
authorSrinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Thu, 13 Oct 2022 05:08:31 +0000 (10:38 +0530)
committerMark Brown <broonie@kernel.org>
Thu, 13 Oct 2022 12:01:34 +0000 (13:01 +0100)
commitc9a3545b1d771fb7b06a487796c40288c02c41c5
tree23f89c9f7d7798376414d4411cd0d38498922cdc
parentee1aa2ae3eaa96e70229fa61deee87ef4528ffdf
ASoC: qcom: lpass-cpu: mark HDMI TX registers as volatile

Update HDMI volatile registers list as DMA, Channel Selection registers,
vbit control registers are being reflected by hardware DP port
disconnection.

This update is required to fix no display and no sound issue observed
after reconnecting TAMA/SANWA DP cables.
Once DP cable is unplugged, DMA control registers are being reset by
hardware, however at second plugin, new dma control values does not
updated to the dma hardware registers since new register value and
cached values at the time of first plugin are same.

Fixes: 7cb37b7bd0d3 ("ASoC: qcom: Add support for lpass hdmi driver")

Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Reported-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Link: https://lore.kernel.org/r/1665637711-13300-1-git-send-email-quic_srivasam@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/qcom/lpass-cpu.c