[PATCH 0/2] Exynos850 GPU support

[PATCH 0/2] Exynos850 GPU support

[Thomas Turner]

Hi all,
This is my first time sending patches to linux so apologies for
mistakes. This series provides basic GPU support to the Exynos850
platform, making use of the Mali G52 GPU through the panfrost driver.

Thomas Turner (2):
  dt-bindings: gpu: arm,mali-bifrost: add exynos850-mali compatible
  arm64: dts: exynos850: Add GPU/Mali Bifrost node

 .../devicetree/bindings/gpu/arm,mali-bifrost.yaml    |  1 +
 arch/arm64/boot/dts/exynos/exynos850.dtsi            | 12 ++++++++++++
 2 files changed, 13 insertions(+)

-- 
2.47.3

[PATCH 1/2] dt-bindings: gpu: arm,mali-bifrost: add exynos850-mali compatible

[Thomas Turner]

Exynos850 SoC uses the ARM Mali G52 GPU, document its compatible
string with the appropriate fallback.

Signed-off-by: Thomas Turner <tturner@lineageos.org>
---
 Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
index 9db9f84ad964..ece2b637cd41 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-bifrost.yaml
@@ -34,6 +34,7 @@ properties:
               - rockchip,rk3562-mali
               - rockchip,rk3568-mali
               - rockchip,rk3576-mali
+              - samsung,exynos850-mali
           - const: arm,mali-bifrost # Mali Bifrost GPU model/revision is fully discoverable
       - items:
           - enum:
-- 
2.47.3

Re: [PATCH 1/2] dt-bindings: gpu: arm,mali-bifrost: add exynos850-mali compatible

[Conor Dooley]

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Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable

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[PATCH 2/2] arm64: dts: exynos850: Add GPU/Mali Bifrost node

[Thomas Turner]

This can provide basic GPU functionality for the Exynos850 platform.
Tested on the SM-A217F device. Does not provide support for temperature
throttling, DVFS, power domains, governor support, boosting and voltage
control. Once PMIC is properly implemented, support will hopefully
increase. However the panfrost driver probes, the Mali-G52 GPU
initializes and the core clock is set-up.

Signed-off-by: Thomas Turner <tturner@lineageos.org>
---
 arch/arm64/boot/dts/exynos/exynos850.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos850.dtsi b/arch/arm64/boot/dts/exynos/exynos850.dtsi
index 3881f573ec08..8ed85c125030 100644
--- a/arch/arm64/boot/dts/exynos/exynos850.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos850.dtsi
@@ -296,6 +296,18 @@ cmu_g3d: clock-controller@11400000 {
 			clock-names = "oscclk", "dout_g3d_switch";
 		};
 
+		gpu: gpu@11500000 {
+			compatible = "samsung,exynos850-mali", "arm,mali-bifrost";
+			reg = <0x11500000 0x5000>;
+			interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "job", "mmu", "gpu";
+			clocks = <&cmu_g3d CLK_GOUT_G3D_GPU_CLK>;
+			clock-names = "core";
+			status = "disabled";
+		};
+
 		cmu_apm: clock-controller@11800000 {
 			compatible = "samsung,exynos850-cmu-apm";
 			reg = <0x11800000 0x8000>;
-- 
2.47.3

Re: [PATCH 2/2] arm64: dts: exynos850: Add GPU/Mali Bifrost node

[Krzysztof Kozlowski]

On 20/08/2026 16:04, Thomas Turner wrote:
> This can provide basic GPU functionality for the Exynos850 platform.
> Tested on the SM-A217F device. Does not provide support for temperature
> throttling, DVFS, power domains, governor support, boosting and voltage
> control. Once PMIC is properly implemented, support will hopefully
> increase. However the panfrost driver probes, the Mali-G52 GPU
> initializes and the core clock is set-up.
> 
> Signed-off-by: Thomas Turner <tturner@lineageos.org>

Slow down!

It's another version? Duplicate? I already responded to v2 (which was
labeled v1), so is this vX?

What is happening with this patchset?

Best regards,
Krzysztof