linux-kernel - [PATCH 2/9] arm64: dts: qcom: msm8916/39: Disable GPU by default

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Date:   Mon, 11 Sep 2023 19:41:44 +0200
From:   Stephan Gerhold <stephan@...hold.net>
To:     Bjorn Andersson <andersson@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Stephan Gerhold <stephan@...hold.net>
Subject: [PATCH 2/9] arm64: dts: qcom: msm8916/39: Disable GPU by default

MSM8916/39 do not need signed GPU firmware so it is generally okay to
have it enabled by default. However, currently the GPU does not work
without also enabling MDSS and it's questionable if someone would
really need it without a display in practice.

For consistency let's follow newer SoCs and disable the GPU by default.
Enable it for all existing devices that already have &mdss enabled.

Signed-off-by: Stephan Gerhold <stephan@...hold.net>
---
 arch/arm64/boot/dts/qcom/apq8016-sbc.dts                      | 4 ++++
 arch/arm64/boot/dts/qcom/apq8039-t2.dts                       | 4 ++++
 arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi    | 4 ++++
 arch/arm64/boot/dts/qcom/msm8916.dtsi                         | 3 ++-
 arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts | 4 ++++
 arch/arm64/boot/dts/qcom/msm8939.dtsi                         | 3 ++-
 6 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dts b/arch/arm64/boot/dts/qcom/apq8016-sbc.dts
index c13230217c3c..bd68f4793acd 100644
--- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dts
+++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dts
@@ -230,6 +230,10 @@ &camss {
 	status = "okay";
 };
 
+&gpu {
+	status = "okay";
+};
+
 &lpass {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/apq8039-t2.dts b/arch/arm64/boot/dts/qcom/apq8039-t2.dts
index 027d1da7e81d..f591d6e78d6e 100644
--- a/arch/arm64/boot/dts/qcom/apq8039-t2.dts
+++ b/arch/arm64/boot/dts/qcom/apq8039-t2.dts
@@ -131,6 +131,10 @@ &blsp_uart2 {
 	status = "okay";
 };
 
+&gpu {
+	status = "okay";
+};
+
 &lpass {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi b/arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi
index 5f78004a24bd..15d2486cdb45 100644
--- a/arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916-samsung-a2015-common.dtsi
@@ -239,6 +239,10 @@ &blsp_uart2 {
 	status = "okay";
 };
 
+&gpu {
+	status = "okay";
+};
+
 &mdss {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi
index f093ab83938d..0257cbbb4971 100644
--- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
@@ -1750,7 +1750,7 @@ cci_i2c0: i2c-bus@0 {
 			};
 		};
 
-		gpu@...0000 {
+		gpu: gpu@...0000 {
 			compatible = "qcom,adreno-306.0", "qcom,adreno";
 			reg = <0x01c00000 0x20000>;
 			reg-names = "kgsl_3d0_reg_memory";
@@ -1773,6 +1773,7 @@ gpu@...0000 {
 			power-domains = <&gcc OXILI_GDSC>;
 			operating-points-v2 = <&gpu_opp_table>;
 			iommus = <&gpu_iommu 1>, <&gpu_iommu 2>;
+			status = "disabled";
 
 			gpu_opp_table: opp-table {
 				compatible = "operating-points-v2";
diff --git a/arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts b/arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts
index 89b6aebba404..cb893345c44b 100644
--- a/arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts
+++ b/arch/arm64/boot/dts/qcom/msm8939-sony-xperia-kanuti-tulip.dts
@@ -39,6 +39,10 @@ usb_id: usb-id {
 	};
 };
 
+&gpu {
+	status = "okay";
+};
+
 &mdss {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/msm8939.dtsi b/arch/arm64/boot/dts/qcom/msm8939.dtsi
index 6e24f0f2374f..b0a64e468629 100644
--- a/arch/arm64/boot/dts/qcom/msm8939.dtsi
+++ b/arch/arm64/boot/dts/qcom/msm8939.dtsi
@@ -1395,7 +1395,7 @@ mdss_dsi1_phy: phy@...0300 {
 			};
 		};
 
-		gpu@...0000 {
+		gpu: gpu@...0000 {
 			compatible = "qcom,adreno-405.0", "qcom,adreno";
 			reg = <0x01c00000 0x10000>;
 			reg-names = "kgsl_3d0_reg_memory";
@@ -1418,6 +1418,7 @@ gpu@...0000 {
 			power-domains = <&gcc OXILI_GDSC>;
 			operating-points-v2 = <&opp_table>;
 			iommus = <&gpu_iommu 1>, <&gpu_iommu 2>;
+			status = "disabled";
 
 			opp_table: opp-table {
 				compatible = "operating-points-v2";

-- 
2.42.0