From: Val Packett <val@packett.cool>
Date: Tue, 3 Mar 2026 03:41:25 +0000 (-0300)
Subject: arm64: dts: qcom: sm6125: Add missing MDSS core reset
X-Git-Tag: v7.1-rc1~125^2~14^2~207
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=bb4d28e377cf04fbee8a01322059fa14808cdfe9;p=thirdparty%2Flinux.git

arm64: dts: qcom: sm6125: 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 xiaomi-laurel-sprout smartphone DSI would not work on boot.

Wire up the reset to fix.

Fixes: 0865d23a0226 ("arm64: dts: qcom: sm6125: Add display hardware nodes")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Tested-by: Yedaya Katsman <yedaya.ka@gmail.com>
Signed-off-by: Val Packett <val@packett.cool>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260303034847.13870-7-val@packett.cool
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---

diff --git a/arch/arm64/boot/dts/qcom/sm6125.dtsi b/arch/arm64/boot/dts/qcom/sm6125.dtsi
index 80c42dff5399b..a22374e5a17ff 100644
--- a/arch/arm64/boot/dts/qcom/sm6125.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6125.dtsi
@@ -1238,6 +1238,8 @@
 				      "ahb",
 				      "core";
 
+			resets = <&dispcc DISP_CC_MDSS_CORE_BCR>;
+
 			power-domains = <&dispcc MDSS_GDSC>;
 
 			iommus = <&apps_smmu 0x400 0x0>;
@@ -1437,6 +1439,7 @@
 			power-domains = <&rpmpd RPMPD_VDDCX>;
 
 			#clock-cells = <1>;
+			#reset-cells = <1>;
 			#power-domain-cells = <1>;
 		};