linux-kernel - [PATCH 3/7] arm64: dts: qcom: sc8180x: create common zap-shader node

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Message-Id: <20251028-dt-zap-shader-v1-3-7eccb823b986@oss.qualcomm.com>
Date: Tue, 28 Oct 2025 23:00:02 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        cros-qcom-dts-watchers@...omium.org
Cc: linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 3/7] arm64: dts: qcom: sc8180x: create common zap-shader
 node

In order to reduce duplication, move common GPU memory configuration
from individual board files to sc8180x.dtsi.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@....qualcomm.com>
---
 arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts | 6 ------
 arch/arm64/boot/dts/qcom/sc8180x-primus.dts         | 3 ++-
 arch/arm64/boot/dts/qcom/sc8180x.dtsi               | 9 +++++++++
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
index 08d0784d0cbb899b021198bd85e26f1a93861713..625a155a584ae4ca14c6f373ef21b773ea7311cb 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-lenovo-flex-5g.dts
@@ -151,11 +151,6 @@ adsp_mem: adsp-region@...00000 {
 			no-map;
 		};
 
-		gpu_mem: gpu-region@...15000 {
-			reg = <0x0 0x98715000 0x0 0x2000>;
-			no-map;
-		};
-
 		cdsp_mem: cdsp-region@...00000 {
 			reg = <0x0 0x98900000 0x0 0x1400000>;
 			no-map;
@@ -357,7 +352,6 @@ &gpu {
 	status = "okay";
 
 	zap-shader {
-		memory-region = <&gpu_mem>;
 		firmware-name = "qcom/sc8180x/LENOVO/82AK/qcdxkmsuc8180.mbn";
 	};
 };
diff --git a/arch/arm64/boot/dts/qcom/sc8180x-primus.dts b/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
index 93de9fe918ebdadf239832db647b84ac9d5a33f6..069953dcad378448800d45e14931efe1fe1a69fc 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
+++ b/arch/arm64/boot/dts/qcom/sc8180x-primus.dts
@@ -14,6 +14,8 @@
 #include "sc8180x.dtsi"
 #include "sc8180x-pmics.dtsi"
 
+/delete-node/ &gpu_mem;
+
 / {
 	model = "Qualcomm SC8180x Primus";
 	compatible = "qcom,sc8180x-primus", "qcom,sc8180x";
@@ -444,7 +446,6 @@ &gpu {
 	status = "okay";
 
 	zap-shader {
-		memory-region = <&gpu_mem>;
 		firmware-name = "qcom/sc8180x/qcdxkmsuc8180.mbn";
 	};
 };
diff --git a/arch/arm64/boot/dts/qcom/sc8180x.dtsi b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
index e3143a4a41c948cf4ddbf4b137a1323366566fdc..42ab76d52ae21c39d5855e20e11f9cb2319f3afa 100644
--- a/arch/arm64/boot/dts/qcom/sc8180x.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8180x.dtsi
@@ -646,6 +646,11 @@ reserved@...00000 {
 			no-map;
 		};
 
+		gpu_mem: memory@...15000 {
+			reg = <0x0 0x98715000 0x0 0x2000>;
+			no-map;
+		};
+
 		reserved@...00000 {
 			reg = <0x0 0x9d400000 0x0 0x1000000>;
 			no-map;
@@ -2274,6 +2279,10 @@ gpu: gpu@...0000 {
 
 			status = "disabled";
 
+			zap-shader {
+				memory-region = <&gpu_mem>;
+			};
+
 			gpu_opp_table: opp-table {
 				compatible = "operating-points-v2";
 

-- 
2.47.3