The GPU on the R-Car M3-W+ is a Rogue GX6250 which uses firmware
rogue_4.45.2.58_v1.fw available from Imagination.

When enumerated, it appears as:
powervr fd000000.gpu: [drm] loaded firmware powervr/rogue_4.45.2.58_v1.fw
powervr fd000000.gpu: [drm] FW version v1.0 (build 6513336 OS)

Signed-off-by: Adam Ford <aford173@gmail.com>

diff --git a/arch/arm64/boot/dts/renesas/r8a77961.dtsi b/arch/arm64/boot/dts/renesas/r8a77961.dtsi
index 58f9286a5ab5..cc17e624c069 100644
--- a/arch/arm64/boot/dts/renesas/r8a77961.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77961.dtsi
@@ -2438,6 +2438,16 @@ gic: interrupt-controller@f1010000 {
 			resets = <&cpg 408>;
 		};
 
+		gpu: gpu@fd000000 {
+			compatible = "renesas,r8a77961-gpu", "img,img-axe";
+			reg = <0 0xfd000000 0 0x20000>;
+			clocks = <&cpg CPG_MOD 112>;
+			clock-names = "core";
+			interrupts = <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+			power-domains = <&sysc R8A77961_PD_3DG_B>;
+			resets = <&cpg 112>;
+		};
+
 		pciec0: pcie@fe000000 {
 			compatible = "renesas,pcie-r8a77961",
 				     "renesas,pcie-rcar-gen3";
-- 
2.43.0

On Tue, Feb 27, 2024 at 4:46 AM Adam Ford <aford173@gmail.com> wrote:
> The GPU on the R-Car M3-W+ is a Rogue GX6250 which uses firmware
> rogue_4.45.2.58_v1.fw available from Imagination.
>
> When enumerated, it appears as:
> powervr fd000000.gpu: [drm] loaded firmware powervr/rogue_4.45.2.58_v1.fw
> powervr fd000000.gpu: [drm] FW version v1.0 (build 6513336 OS)
>
> Signed-off-by: Adam Ford <aford173@gmail.com>

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds