From e12333451e76e1fe9121a3ce30b930c719fc04dd Mon Sep 17 00:00:00 2001
From: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Date: Wed, 1 Mar 2023 10:55:11 +0100
Subject: [PATCH] arm64: dts: mediatek: mt8192: Add GPU nodes
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The MediaTek MT8192 includes a Mali-G57 GPU supported in Panfrost. Add
the GPU node to the device tree to enable 3D acceleration.

The GPU node is disabled by default. It should be enabled by board with
its power supplies correctly assigned.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
[nfraprado: removed sram supply, tweaked opp node name, adjusted commit message]
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
[wenst@: disable GPU by default; adjusted prefix; split out board change]
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
[Angelo: cosmetic fixes]
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Link: https://lore.kernel.org/r/20230301095523.428461-8-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
---
 arch/arm64/boot/dts/mediatek/mt8192.dtsi | 107 +++++++++++++++++++++++++++++++
 1 file changed, 107 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8192.dtsi b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
index 87b91c8..34631ad 100644
--- a/arch/arm64/boot/dts/mediatek/mt8192.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8192.dtsi
@@ -312,6 +312,91 @@
 		clock-frequency = <13000000>;
 	};
 
+	gpu_opp_table: opp-table-0 {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		opp-358000000 {
+			opp-hz = /bits/ 64 <358000000>;
+			opp-microvolt = <606250>;
+		};
+
+		opp-399000000 {
+			opp-hz = /bits/ 64 <399000000>;
+			opp-microvolt = <618750>;
+		};
+
+		opp-440000000 {
+			opp-hz = /bits/ 64 <440000000>;
+			opp-microvolt = <631250>;
+		};
+
+		opp-482000000 {
+			opp-hz = /bits/ 64 <482000000>;
+			opp-microvolt = <643750>;
+		};
+
+		opp-523000000 {
+			opp-hz = /bits/ 64 <523000000>;
+			opp-microvolt = <656250>;
+		};
+
+		opp-564000000 {
+			opp-hz = /bits/ 64 <564000000>;
+			opp-microvolt = <668750>;
+		};
+
+		opp-605000000 {
+			opp-hz = /bits/ 64 <605000000>;
+			opp-microvolt = <681250>;
+		};
+
+		opp-647000000 {
+			opp-hz = /bits/ 64 <647000000>;
+			opp-microvolt = <693750>;
+		};
+
+		opp-688000000 {
+			opp-hz = /bits/ 64 <688000000>;
+			opp-microvolt = <706250>;
+		};
+
+		opp-724000000 {
+			opp-hz = /bits/ 64 <724000000>;
+			opp-microvolt = <725000>;
+		};
+
+		opp-748000000 {
+			opp-hz = /bits/ 64 <748000000>;
+			opp-microvolt = <737500>;
+		};
+
+		opp-772000000 {
+			opp-hz = /bits/ 64 <772000000>;
+			opp-microvolt = <750000>;
+		};
+
+		opp-795000000 {
+			opp-hz = /bits/ 64 <795000000>;
+			opp-microvolt = <762500>;
+		};
+
+		opp-819000000 {
+			opp-hz = /bits/ 64 <819000000>;
+			opp-microvolt = <775000>;
+		};
+
+		opp-843000000 {
+			opp-hz = /bits/ 64 <843000000>;
+			opp-microvolt = <787500>;
+		};
+
+		opp-866000000 {
+			opp-hz = /bits/ 64 <866000000>;
+			opp-microvolt = <800000>;
+		};
+	};
+
 	soc {
 		#address-cells = <2>;
 		#size-cells = <2>;
@@ -1266,6 +1351,28 @@
 			status = "disabled";
 		};
 
+		gpu: gpu@13000000 {
+			compatible = "mediatek,mt8192-mali", "arm,mali-valhall-jm";
+			reg = <0 0x13000000 0 0x4000>;
+			interrupts = <GIC_SPI 365 IRQ_TYPE_LEVEL_HIGH 0>,
+				     <GIC_SPI 364 IRQ_TYPE_LEVEL_HIGH 0>,
+				     <GIC_SPI 363 IRQ_TYPE_LEVEL_HIGH 0>;
+			interrupt-names = "job", "mmu", "gpu";
+
+			clocks = <&apmixedsys CLK_APMIXED_MFGPLL>;
+
+			power-domains = <&spm MT8192_POWER_DOMAIN_MFG2>,
+					<&spm MT8192_POWER_DOMAIN_MFG3>,
+					<&spm MT8192_POWER_DOMAIN_MFG4>,
+					<&spm MT8192_POWER_DOMAIN_MFG5>,
+					<&spm MT8192_POWER_DOMAIN_MFG6>;
+			power-domain-names = "core0", "core1", "core2", "core3", "core4";
+
+			operating-points-v2 = <&gpu_opp_table>;
+
+			status = "disabled";
+		};
+
 		mfgcfg: clock-controller@13fbf000 {
 			compatible = "mediatek,mt8192-mfgcfg";
 			reg = <0 0x13fbf000 0 0x1000>;
-- 
2.7.4