[PATCH v2 0/2] Enable Mali G310 GPU support on i.MX952 board

[PATCH v2 0/2] Enable Mali G310 GPU support on i.MX952 board

[Guangliu Ding]

This series enable Mali G310 GPU support on i.MX952 boards, the same GPU
IP as the instance on i.MX95 boards.

Signed-off-by: Guangliu Ding <guangliu.ding@nxp.com>
---
Changes in v2:
- Improve patch description, adding more GPU information.
- Remove Reviewed-by tag.
- Link to v1: https://patch.msgid.link/20260331-master-v1-0-65c8e318d462@nxp.com

---
Guangliu Ding (2):
      dt-bindings: gpu: mali-valhall-csf: Document i.MX952 support
      arm64: dts: imx952: Describe Mali G310 GPU

 .../bindings/gpu/arm,mali-valhall-csf.yaml         |  1 +
 arch/arm64/boot/dts/freescale/imx952.dtsi          | 36 ++++++++++++++++++++++
 2 files changed, 37 insertions(+)
---
base-commit: 0138af2472dfdef0d56fc4697416eaa0ff2589bd
change-id: 20260331-master-7ec7ff0fe1b2

Best regards,
--  
Guangliu Ding <guangliu.ding@nxp.com>

[PATCH v2 1/2] dt-bindings: gpu: mali-valhall-csf: Document i.MX952 support

[Guangliu Ding]

The GPU instance used on NXP i.MX952 is the Mali‑G310,
document support for this variant.

A hardware GPU auto clock‑gating mechanism has been introduced,
enabling GPUMIX to automatically manage the GPU clock. This improves
overall response time.

Signed-off-by: Guangliu Ding <guangliu.ding@nxp.com>
---
 Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml b/Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml
index 8eccd4338a2b..6a10843a26e2 100644
--- a/Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml
+++ b/Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml
@@ -20,6 +20,7 @@ properties:
           - enum:
               - mediatek,mt8196-mali
               - nxp,imx95-mali            # G310
+              - nxp,imx952-mali           # G310
               - rockchip,rk3588-mali
           - const: arm,mali-valhall-csf   # Mali Valhall GPU model/revision is fully discoverable
 

-- 
2.34.1

[PATCH v2 2/2] arm64: dts: imx952: Describe Mali G310 GPU

[Guangliu Ding]

Support Mali G310 GPU on i.MX952 board. Describe this GPU in the DT.
Include dummy GPU voltage regulator and OPP tables.

Signed-off-by: Guangliu Ding <guangliu.ding@nxp.com>
---
 arch/arm64/boot/dts/freescale/imx952.dtsi | 36 +++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx952.dtsi b/arch/arm64/boot/dts/freescale/imx952.dtsi
index 91fe4916ac04..0bd3e7fc0674 100644
--- a/arch/arm64/boot/dts/freescale/imx952.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx952.dtsi
@@ -318,6 +318,28 @@ usbphynop2: usbphynop2 {
 		clock-names = "main_clk";
 	};
 
+	gpu_opp_table: opp-table {
+		compatible = "operating-points-v2";
+
+		opp-500000000 {
+			opp-hz = /bits/ 64 <500000000>;
+			opp-hz-real = /bits/ 64 <500000000>;
+			opp-microvolt = <920000>;
+		};
+
+		opp-800000000 {
+			opp-hz = /bits/ 64 <800000000>;
+			opp-hz-real = /bits/ 64 <800000000>;
+			opp-microvolt = <920000>;
+		};
+
+		opp-1000000000 {
+			opp-hz = /bits/ 64 <1000000000>;
+			opp-hz-real = /bits/ 64 <1000000000>;
+			opp-microvolt = <920000>;
+		};
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <2>;
@@ -1262,5 +1284,19 @@ usbmisc2: usbmisc@4c200200 {
 			reg = <0x0 0x4c200200 0x0 0x200>,
 			      <0x0 0x4c010014 0x0 0x4>;
 		};
+
+		gpu: gpu@4d900000 {
+			compatible = "nxp,imx952-mali", "arm,mali-valhall-csf";
+			reg = <0 0x4d900000 0 0x480000>;
+			interrupts = <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 289 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "gpu", "job", "mmu";
+			clocks = <&scmi_clk IMX952_CLK_GPU>;
+			clock-names = "core";
+			power-domains = <&scmi_devpd IMX952_PD_GPU>;
+			operating-points-v2 = <&gpu_opp_table>;
+			dynamic-power-coefficient = <1013>;
+		};
 	};
 };

-- 
2.34.1

Re: [PATCH v2 0/2] Enable Mali G310 GPU support on i.MX952 board

[Daniel Baluta]

On 4/1/26 13:19, Guangliu Ding wrote:
> This series enable Mali G310 GPU support on i.MX952 boards, the same GPU
> IP as the instance on i.MX95 boards.
>
> Signed-off-by: Guangliu Ding <guangliu.ding@nxp.com>

Please wait until there is a resolution to all the questions asked

by reviewers.

Otherwise, this v2 is just useless.

Re: [PATCH v2 1/2] dt-bindings: gpu: mali-valhall-csf: Document i.MX952 support

[Krzysztof Kozlowski]

On Wed, Apr 01, 2026 at 06:19:12PM +0800, Guangliu Ding wrote:
> The GPU instance used on NXP i.MX952 is the Mali‑G310,
> document support for this variant.
> 
> A hardware GPU auto clock‑gating mechanism has been introduced,
> enabling GPUMIX to automatically manage the GPU clock. This improves
> overall response time.
> 
> Signed-off-by: Guangliu Ding <guangliu.ding@nxp.com>
> ---
>  Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml | 1 +
>  1 file changed, 1 insertion(+)

Why are you sending next version when the discussion is happening?

Best regards,
Krzysztof

RE: Re: [PATCH v2 1/2] dt-bindings: gpu: mali-valhall-csf: Document i.MX952 support

[Guangliu Ding]

> On Wed, Apr 01, 2026 at 06:19:12PM +0800, Guangliu Ding wrote:
> > The GPU instance used on NXP i.MX952 is the Mali‑G310, document
> > support for this variant.
> >
> > A hardware GPU auto clock‑gating mechanism has been introduced,
> > enabling GPUMIX to automatically manage the GPU clock. This improves
> > overall response time.
> >
> > Signed-off-by: Guangliu Ding <guangliu.ding@nxp.com>
> > ---
> >  Documentation/devicetree/bindings/gpu/arm,mali-valhall-csf.yaml | 1 +
> >  1 file changed, 1 insertion(+)
> 
> Why are you sending next version when the discussion is happening?
> 

I will drop this thread and raise v3 version with final fix. Sorry for inconvenience.

> Best regards,
> Krzysztof