From: Val Packett <val@packett.cool>
Date: Tue, 3 Mar 2026 03:41:24 +0000 (-0300)
Subject: arm64: dts: qcom: sm6115: Add missing MDSS core reset
X-Git-Tag: v7.1-rc1~125^2~14^2~208
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1cc317d4188ba2d72c298b5271fb4a2fa1d84c29;p=thirdparty%2Flinux.git

arm64: dts: qcom: sm6115: Add missing MDSS core reset

To make sure the display subsystem starts in a predictable state, we
need to reset it. Otherwise, unpredictable issues can happen, e.g.
on the motorola-guamp smartphone DSI would not transmit anything.

Wire up the reset to fix.

Fixes: 705e50427d81 ("arm64: dts: qcom: sm6115: Add mdss/dpu node")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Val Packett <val@packett.cool>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260303034847.13870-6-val@packett.cool
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---

diff --git a/arch/arm64/boot/dts/qcom/sm6115.dtsi b/arch/arm64/boot/dts/qcom/sm6115.dtsi
index e9336adbc3918..3a9a1ad8d5816 100644
--- a/arch/arm64/boot/dts/qcom/sm6115.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6115.dtsi
@@ -1864,6 +1864,8 @@
 				 <&gcc GCC_DISP_HF_AXI_CLK>,
 				 <&dispcc DISP_CC_MDSS_MDP_CLK>;
 
+			resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
+
 			interrupts = <GIC_SPI 186 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-controller;
 			#interrupt-cells = <1>;