Commit 03cb4128 authored by Srinivasa Rao Mandadapu's avatar Srinivasa Rao Mandadapu Committed by Lipeng Sang
Browse files

ASoC: qcom: lpass-cpu: mark HDMI TX registers as volatile

stable inclusion
from stable-v5.10.153
commit 648ac633e7645aca21af4f8caf0bddd5b792746d
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I64YCA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=648ac633e7645aca21af4f8caf0bddd5b792746d



--------------------------------

[ Upstream commit c9a3545b ]

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: 7cb37b7b ("ASoC: qcom: Add support for lpass hdmi driver")

Signed-off-by: default avatarSrinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Reported-by: default avatarKuogee Hsieh <quic_khsieh@quicinc.com>
Link: https://lore.kernel.org/r/1665637711-13300-1-git-send-email-quic_srivasam@quicinc.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarLipeng Sang <sanglipeng1@jd.com>
parent 9bbb71b4
Loading
Loading
Loading
Loading
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please to comment