linux-kernel - [PATCH] Asoc: qcom: lpass-cpu: Fix dp audio failure on monitors

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Message-Id: <1602596728-11783-1-git-send-email-srivasam@codeaurora.org>
Date:   Tue, 13 Oct 2020 19:15:28 +0530
From:   Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org, lgirdwood@...il.com,
        broonie@...nel.org, robh+dt@...nel.org, plai@...eaurora.org,
        bgoswami@...eaurora.org, perex@...ex.cz, tiwai@...e.com,
        srinivas.kandagatla@...aro.org, rohitkr@...eaurora.org,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     V Sujith Kumar Reddy <vsujithk@...eaurora.org>,
        Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
Subject: [PATCH] Asoc: qcom: lpass-cpu: Fix dp audio failure on monitors

From: V Sujith Kumar Reddy <vsujithk@...eaurora.org>

Make LPASS_HDMI_TX_PARITY_ADDR reg as volatile to fix
dp audio failure with external monitors.
This patch is upgrade to below patch series.
https://lore.kernel.org/patchwork/project/lkml/list/?series=466460

Signed-off-by: V Sujith Kumar Reddy <vsujithk@...eaurora.org>
Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
---
 sound/soc/qcom/lpass-cpu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index ba2aca3..78de888 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -660,6 +660,8 @@ static bool lpass_hdmi_regmap_volatile(struct device *dev, unsigned int reg)
 		return true;
 	if (reg == LPASS_HDMI_TX_LEGACY_ADDR(v))
 		return true;
+	if (reg == LPASS_HDMI_TX_PARITY_ADDR(v))
+		return true;
 
 	for (i = 0; i < v->rdma_channels; ++i) {
 		if (reg == LPAIF_HDMI_RDMACURR_REG(v, i))
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.