Add a device node for the Imagination Technologies IMG AXM-8-256 GPU.

Signed-off-by: Geert Uytterhoeven <[email protected]>
---
Fails to load firmware:

    powervr fd000000.gpu: Direct firmware load for 
powervr/rogue_30.3.408.101_v1.fw failed with error -2
    powervr fd000000.gpu: [drm] *ERROR* failed to load firmware 
powervr/rogue_30.3.408.101_v1.fw (err=-2)

Firmware not available in upstream linux-firmware or
https://gitlab.freedesktop.org/imagination/linux-firmware.
---
 arch/arm64/boot/dts/renesas/r8a779g0.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi 
b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
index ee3fd0df4fca6020..c2e97d679d35be6d 100644
--- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
@@ -2168,6 +2168,27 @@ its: msi-controller@40000 {
                        };
                };
 
+               gsx: gpu@fd000000 {
+                       compatible = "renesas,r8a779g0-gpu",
+                                    "img,img-axm-8-256", "img,img-rogue";
+                       reg = <0 0xfd000000 0 0x800000>;
+                       interrupts = <GIC_SPI 464 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 465 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 466 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 467 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 468 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 469 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 470 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 471 IRQ_TYPE_LEVEL_HIGH>;
+                       clocks = <&cpg CPG_MOD 0>;
+                       clock-names = "core";
+                       power-domains = <&sysc R8A779G0_PD_A33DGA>,
+                                       <&sysc R8A779G0_PD_A23DGB>;
+                       power-domain-names = "a", "b";
+                       resets = <&cpg 0>;
+                       status = "disabled";
+               };
+
                csi40: csi2@fe500000 {
                        compatible = "renesas,r8a779g0-csi2";
                        reg = <0 0xfe500000 0 0x40000>;
-- 
2.43.0

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