Re: [PATCH v3] arm64: dts: imx952: Describe Mali G310 GPU
From: Liviu Dudau
Date: Wed Apr 08 2026 - 09:58:00 EST
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@xxxxxxx>
Reviewed-by: Liviu Dudau <liviu.dudau@xxxxxxx>
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@xxxxxxx
>
> 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@xxxxxxx
> ---
> 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@xxxxxxx>
>
--
====================
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| but they're not |
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