This is a note to let you know that I've just added the patch titled
ASoC: qcom: lpass-cpu: Mark HDMI TX parity register as volatile
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
asoc-qcom-lpass-cpu-mark-hdmi-tx-parity-register-as-.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4d3fd5bd7fd0dac1b865956c693b09da58e4938a
Author: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
Date: Sat Oct 15 14:48:50 2022 +0530
ASoC: qcom: lpass-cpu: Mark HDMI TX parity register as volatile
[ Upstream commit 1dd5166102e7ca91e8c5d833110333835e147ddb ]
Update LPASS_HDMI_TX_PARITY_ADDR register as volatile, to fix
dp audio failures observed with some of external monitors.
Fixes: 7cb37b7bd0d3 ("ASoC: qcom: Add support for lpass hdmi driver")
Signed-off-by: Srinivasa Rao Mandadapu <quic_srivasam@xxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1665825530-7593-1-git-send-email-quic_srivasam@xxxxxxxxxxx
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index b37f4736ee10..5e8d045c1a06 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -781,6 +781,8 @@ 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))
