linux-kernel - [PATCH 1/2] arm64: dts: allwinner: a523: add Mali GPU node

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Message-ID: <20250706025625.2707073-2-iuncuim@gmail.com>
Date: Sun,  6 Jul 2025 10:56:22 +0800
From: iuncuim <iuncuim@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Andre Przywara <andre.przywara@....com>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	Samuel Holland <samuel@...lland.org>
Cc: devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-sunxi@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH 1/2] arm64: dts: allwinner: a523: add Mali GPU node

From: Mikhail Kalashnikov <iuncuim@...il.com>

The Allwinner A523 SoC features the Mali-G57 MC1 GPU, which belongs
to the Mali Valhall (v9) family. There is a power domain specifically
for this GPU that needs to be enabled to utilize it.

To enable in a specific device, we need to enable the gpu node and specify
the “mali-supply” regulator additionally in the device tree.

Signed-off-by: Mikhail Kalashnikov <iuncuim@...il.com>
---
 arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index dd6fa22f9..d3528d498 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -108,6 +108,21 @@ soc {
 		#size-cells = <1>;
 		ranges = <0x0 0x0 0x0 0x40000000>;
 
+		gpu: gpu@...0000 {
+			compatible = "allwinner,sun55i-a523-mali",
+				     "arm,mali-valhall-jm";
+			reg = <0x1800000 0x10000>;
+			interrupts = <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "job", "mmu", "gpu";
+			clocks = <&ccu CLK_GPU>, <&ccu CLK_BUS_GPU>;
+			clock-names = "core", "bus";
+			power-domains = <&pck600 PD_GPU>;
+			resets = <&ccu RST_BUS_GPU>;
+			status = "disabled";
+		};
+
 		pio: pinctrl@...0000 {
 			compatible = "allwinner,sun55i-a523-pinctrl";
 			reg = <0x2000000 0x800>;
-- 
2.50.0