linux-kernel - [PATCH 3/6] arm64: dts: qcom: sc8180x: Add missing MDP clocks

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Message-Id: <20231214-topic-sc8180_fixes-v1-3-421904863006@linaro.org>
Date:   Thu, 14 Dec 2023 19:13:40 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Georgi Djakov <djakov@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vinod Koul <vkoul@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        Maximilian Luz <luzmaximilian@...il.com>,
        Gustave Monce <gustave.monce@...look.com>,
        Konrad Dybcio <konrad.dybcio@...aro.org>
Subject: [PATCH 3/6] arm64: dts: qcom: sc8180x: Add missing MDP clocks

The ROT clock is required for the MDP block to function (looks like some
others depend on it), and whike the LUT clock's purpose is not clear,
it's likely better to turn on all of MDP's dependencies rather than not
doing so.

Add these clocks under the MDP node. This also makes Primus work without
clk_ignore_unused (as far as the dmesg-visible errors go, anyway).

Fixes: 494dec9b6f54 ("arm64: dts: qcom: sc8180x: Add display and gpu nodes")
Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>
---
 arch/arm64/boot/dts/qcom/sc8180x.dtsi | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
index 09b4e66367bf..c970dfb11fe5 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
@@ -2702,11 +2702,15 @@ mdss_mdp: mdp@...1000 {
 				clocks = <&dispcc DISP_CC_MDSS_AHB_CLK>,
 					 <&gcc GCC_DISP_HF_AXI_CLK>,
 					 <&dispcc DISP_CC_MDSS_MDP_CLK>,
-					 <&dispcc DISP_CC_MDSS_VSYNC_CLK>;
+					 <&dispcc DISP_CC_MDSS_VSYNC_CLK>,
+					 <&dispcc DISP_CC_MDSS_ROT_CLK>,
+					 <&dispcc DISP_CC_MDSS_MDP_LUT_CLK>;
 				clock-names = "iface",
 					      "bus",
 					      "core",
-					      "vsync";
+					      "vsync",
+					      "rot",
+					      "lut";
 
 				assigned-clocks = <&dispcc DISP_CC_MDSS_MDP_CLK>,
 						  <&dispcc DISP_CC_MDSS_VSYNC_CLK>;

-- 
2.40.1