Commit 8186d51f authored by Srinivasa Rao Mandadapu's avatar Srinivasa Rao Mandadapu Committed by Lipeng Sang
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ASoC: qcom: lpass-cpu: Mark HDMI TX parity register as volatile 

stable inclusion
from stable-v5.10.153
commit 2663b16c76d0e8a5ca20d28b5d85ac6993c3954c
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=2663b16c76d0e8a5ca20d28b5d85ac6993c3954c



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[ Upstream commit 1dd51661 ]

Update LPASS_HDMI_TX_PARITY_ADDR register as volatile, to fix
dp audio failures observed with some of external monitors.

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

Signed-off-by: default avatarSrinivasa Rao Mandadapu <quic_srivasam@quicinc.com>
Reviewed-by: default avatarStephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/1665825530-7593-1-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 8b168cdf

sound/soc/qcom/lpass-cpu.c

+2 −0
Original line number Diff line number Diff line
@@ -747,6 +747,8 @@ static bool lpass_hdmi_regmap_volatile(struct device *dev, unsigned int reg) 
		return true;

	if (reg == LPASS_HDMI_TX_VBIT_CTL_ADDR(v))

		return true;

	if (reg == LPASS_HDMI_TX_PARITY_ADDR(v))

		return true;



	for (i = 0; i < v->hdmi_rdma_channels; ++i) {

		if (reg == LPAIF_HDMI_RDMACURR_REG(v, i))