linux-kernel - [PATCH v2 7/8] arm64: dts: qcom: sort out Iris power domains

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Message-Id: <20260201-iris-venus-fix-sm8250-v2-7-6f40d2605c89@oss.qualcomm.com>
Date: Sun, 01 Feb 2026 12:49:04 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Taniya Das <quic_tdas@...cinc.com>,
        Jonathan Marek <jonathan@...ek.ca>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Bryan O'Donoghue <bod@...nel.org>,
        Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Hans Verkuil <hverkuil@...nel.org>,
        Stefan Schmidt <stefan.schmidt@...aro.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Dikshita Agarwal <dikshita@....qualcomm.com>
Cc: linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-media@...r.kernel.org,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Subject: [PATCH v2 7/8] arm64: dts: qcom: sort out Iris power domains

On SM8250 Iris core requires two power rails to function, MX (for PLLs)
and MMCX (for everything else). The commit fa245b3f06cd ("arm64: dts:
qcom: sm8250: Add venus DT node") added only MX power rail, but,
strangely enough, using MMCX voltage levels.

Add MMCX domain together with the (more correct) MX OPP levels.

Fixes: fa245b3f06cd ("arm64: dts: qcom: sm8250: Add venus DT node")
Suggested-by: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sm8250.dtsi | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi
index 980d6e894b9d..531470506809 100644
--- a/arch/arm64/boot/dts/qcom/sm8250.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi
@@ -4321,8 +4321,12 @@ venus: video-codec@...0000 {
 			interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
 			power-domains = <&videocc MVS0C_GDSC>,
 					<&videocc MVS0_GDSC>,
-					<&rpmhpd RPMHPD_MX>;
-			power-domain-names = "venus", "vcodec0", "mx";
+					<&rpmhpd RPMHPD_MX>,
+					<&rpmhpd RPMHPD_MMCX>;
+			power-domain-names = "venus",
+					     "vcodec0",
+					     "mx",
+					     "mmcx";
 			operating-points-v2 = <&venus_opp_table>;
 
 			clocks = <&gcc GCC_VIDEO_AXI0_CLK>,
@@ -4348,22 +4352,26 @@ venus_opp_table: opp-table {
 
 				opp-720000000 {
 					opp-hz = /bits/ 64 <720000000>;
-					required-opps = <&rpmhpd_opp_low_svs>;
+					required-opps = <&rpmhpd_opp_low_svs>,
+							<&rpmhpd_opp_low_svs>;
 				};
 
 				opp-1014000000 {
 					opp-hz = /bits/ 64 <1014000000>;
-					required-opps = <&rpmhpd_opp_svs>;
+					required-opps = <&rpmhpd_opp_low_svs>,
+							<&rpmhpd_opp_svs>;
 				};
 
 				opp-1098000000 {
 					opp-hz = /bits/ 64 <1098000000>;
-					required-opps = <&rpmhpd_opp_svs_l1>;
+					required-opps = <&rpmhpd_opp_svs>,
+							<&rpmhpd_opp_svs_l1>;
 				};
 
 				opp-1332000000 {
 					opp-hz = /bits/ 64 <1332000000>;
-					required-opps = <&rpmhpd_opp_nom>;
+					required-opps = <&rpmhpd_opp_svs>,
+							<&rpmhpd_opp_nom>;
 				};
 			};
 		};

-- 
2.47.3