Commit 94d5ffab authored Sep 07, 2024 by Dmitry Baryshkov Committed by Bjorn Andersson Sep 30, 2024

arm64: dts: qcom: sc7280: don't enable GPU on unsupported devices

On SC7280 and derivative platforms GPU by default requires a signed
binary, a660_zap.mbn. Disable GPU by default and enable it only when
the binary is actually available (QCM6490-IDP, RB3gen2). ChromeOS
devices do not use TrustZone, so GPU can be enabled by default in
sc7280-chrome-common.dtsi. FairPhone5 and SHIFTphone8 DTS already
enable GPU (even though it wasn't required beforehand).

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Konrad Dybcio <konradybcio@kernel.org>
Link: https://lore.kernel.org/r/20240907-rb3g2-fixes-v1-2-eb9da98e9f80@linaro.org

Signed-off-by: Bjorn Andersson <andersson@kernel.org>

parent 6317aad0

arch/arm64/boot/dts/qcom/qcm6490-idp.dts

+8 −0

Original line number	Diff line number	Diff line
		@@ -499,6 +499,14 @@ vreg_bob_3p296: bob {
		};
		};

		&gpu {
		status = "okay";
		};

		&gpu_zap_shader {
		firmware-name = "qcom/qcm6490/a660_zap.mbn";
		};

		&mdss {
		status = "okay";
		};

arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts

+8 −0

Original line number	Diff line number	Diff line
		@@ -557,6 +557,14 @@ &gpi_dma1 {
		status = "okay";
		};

		&gpu {
		status = "okay";
		};

		&gpu_zap_shader {
		firmware-name = "qcom/qcs6490/a660_zap.mbn";
		};

		&i2c0 {
		clock-frequency = <400000>;
		status = "okay";

arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi

+4 −0

Original line number	Diff line number	Diff line
		@@ -56,6 +56,10 @@ &CLUSTER_PD {
		domain-idle-states = <&CLUSTER_SLEEP_0>;
		};

		&gpu {
		status = "okay";
		};

		&lpass_aon {
		status = "okay";
		};

arch/arm64/boot/dts/qcom/sc7280.dtsi

+2 −0

Original line number	Diff line number	Diff line
		@@ -2823,6 +2823,8 @@ gpu: gpu@3d00000 {
		nvmem-cells = <&gpu_speed_bin>;
		nvmem-cell-names = "speed_bin";

		status = "disabled";

		gpu_zap_shader: zap-shader {
		memory-region = <&gpu_zap_mem>;
		};