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[2/4] arm64: dts: qcom: sc7280: don't enable GPU on unsupported devices

Message ID 20240907-rb3g2-fixes-v1-2-eb9da98e9f80@linaro.org
State Accepted
Commit 94d5ffab9d5ebc9caeab310f9d2eb36a65d7d3a9
Headers show
Series arm64: dts: qcom: qcs6490-rb3gen2: several small fixes | expand

Commit Message

Dmitry Baryshkov Sept. 7, 2024, 12:51 p.m. UTC 
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>
---
 arch/arm64/boot/dts/qcom/qcm6490-idp.dts           | 8 ++++++++
 arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts       | 8 ++++++++
 arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi | 4 ++++
 arch/arm64/boot/dts/qcom/sc7280.dtsi               | 2 ++
 4 files changed, 22 insertions(+)

Comments

Konrad Dybcio Sept. 9, 2024, 11:04 a.m. UTC | #1 
On 7.09.2024 2:51 PM, Dmitry Baryshkov wrote:
> 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>

Konrad
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
index 84c45419cb8d..c4cfafb3ec15 100644
--- a/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
+++ b/arch/arm64/boot/dts/qcom/qcm6490-idp.dts
@@ -499,6 +499,14 @@  vreg_bob_3p296: bob {
 	};
 };
 
+&gpu {
+	status = "okay";
+};
+
+&gpu_zap_shader {
+	firmware-name = "qcom/qcm6490/a660_zap.mbn";
+};
+
 &mdss {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
index 5d0167fbc709..00b755779608 100644
--- a/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
+++ b/arch/arm64/boot/dts/qcom/qcs6490-rb3gen2.dts
@@ -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";
diff --git a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
index cecb3e89f7f7..eb5e32035d93 100644
--- a/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280-chrome-common.dtsi
@@ -56,6 +56,10 @@  &CLUSTER_PD {
 	domain-idle-states = <&CLUSTER_SLEEP_0>;
 };
 
+&gpu {
+	status = "okay";
+};
+
 &lpass_aon {
 	status = "okay";
 };
diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 3d8410683402..fbdc9c19242c 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -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>;
 			};