From: Louis-Alexis Eyraud Date: Fri, 9 May 2025 10:12:51 +0000 (+0200) Subject: arm64: dts: mediatek: mt8370: Enable gpu support X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3828a643e808b8f2a90f8ba08f68ad3138b1026e;p=thirdparty%2Flinux.git arm64: dts: mediatek: mt8370: Enable gpu support Add a new gpu node in mt8370.dtsi to enable support for the ARM Mali G57 MC2 GPU (Valhall-JM) found on the MT8370 SoC, using the Panfrost driver. On a Mediatek Genio 510 EVK board, the panfrost driver probed with the following message: ``` panfrost 13000000.gpu: clock rate = 390000000 panfrost 13000000.gpu: mali-g57 id 0x9093 major 0x0 minor 0x0 status 0x0 panfrost 13000000.gpu: features: 00000000,000019f7, issues: 00000003, 80000400 panfrost 13000000.gpu: Features: L2:0x08130206 Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xff JS:0x7 panfrost 13000000.gpu: shader_present=0x5 l2_present=0x1 [drm] Initialized panfrost 1.3.0 for 13000000.gpu on minor 0 ``` Reviewed-by: AngeloGioacchino Del Regno Signed-off-by: Louis-Alexis Eyraud Signed-off-by: Steven Price Link: https://lore.kernel.org/r/20250509-mt8370-enable-gpu-v6-5-2833888cb1d3@collabora.com --- diff --git a/arch/arm64/boot/dts/mediatek/mt8370.dtsi b/arch/arm64/boot/dts/mediatek/mt8370.dtsi index cf1a3759451ff..7ac8b8d034945 100644 --- a/arch/arm64/boot/dts/mediatek/mt8370.dtsi +++ b/arch/arm64/boot/dts/mediatek/mt8370.dtsi @@ -59,6 +59,22 @@ <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; }; +/* + * Please note that overriding compatibles is a discouraged practice and is a + * clear indication of nodes not being, well, compatible! + * + * This is a special case, where the GPU is the same as MT8188, but with one + * of the cores fused out in this lower-binned SoC. + */ +&gpu { + compatible = "mediatek,mt8370-mali", "arm,mali-valhall-jm"; + + power-domains = <&spm MT8188_POWER_DOMAIN_MFG2>, + <&spm MT8188_POWER_DOMAIN_MFG3>; + + power-domain-names = "core0", "core1"; +}; + &ppi_cluster0 { affinity = <&cpu0 &cpu1 &cpu2 &cpu3>; };