[PATCH v3] arm64: dts: imx952: Describe Mali G310 GPU

[PATCH v3] 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.

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>
---
This series enable Mali G310 GPU support on i.MX952 boards, the same GPU
IP as the instance on i.MX95 boards.
---
Changes in v3:
- Follow the order of interrupts/interrupt-names in arm,mali-valhall-csf.yaml.
- Drop dt-bindings change in arm,mali-valhall-csf.yaml.
- Replace "nxp,imx952-mali" with "nxp,imx95-mali" in compatible.
- Link to v2: https://patch.msgid.link/20260401-master-v2-0-20d3fbcd19d6@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
---
 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..ced09e7a1dc5 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,imx95-mali", "arm,mali-valhall-csf";
+			reg = <0 0x4d900000 0 0x480000>;
+			interrupts = <GIC_SPI 289 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "job", "mmu", "gpu";
+			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>;
+		};
 	};
 };

---
base-commit: 0138af2472dfdef0d56fc4697416eaa0ff2589bd
change-id: 20260331-master-7ec7ff0fe1b2

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

Re: [PATCH v3] arm64: dts: imx952: Describe Mali G310 GPU

[Liviu Dudau]

On Tue, Apr 07, 2026 at 11:15:03AM +0800, Guangliu Ding wrote:
> Support Mali G310 GPU on i.MX952 board. Describe this GPU in the DT.
> Include dummy GPU voltage regulator and OPP tables.
> 
> 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>

Reviewed-by: Liviu Dudau <liviu.dudau@arm.com>

Best regards,
Liviu

> ---
> This series enable Mali G310 GPU support on i.MX952 boards, the same GPU
> IP as the instance on i.MX95 boards.
> ---
> Changes in v3:
> - Follow the order of interrupts/interrupt-names in arm,mali-valhall-csf.yaml.
> - Drop dt-bindings change in arm,mali-valhall-csf.yaml.
> - Replace "nxp,imx952-mali" with "nxp,imx95-mali" in compatible.
> - Link to v2: https://patch.msgid.link/20260401-master-v2-0-20d3fbcd19d6@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
> ---
>  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..ced09e7a1dc5 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,imx95-mali", "arm,mali-valhall-csf";
> +			reg = <0 0x4d900000 0 0x480000>;
> +			interrupts = <GIC_SPI 289 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "job", "mmu", "gpu";
> +			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>;
> +		};
>  	};
>  };
> 
> ---
> base-commit: 0138af2472dfdef0d56fc4697416eaa0ff2589bd
> change-id: 20260331-master-7ec7ff0fe1b2
> 
> Best regards,
> --  
> Guangliu Ding <guangliu.ding@nxp.com>
> 

-- 
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