[PATCH v4 13/14] [DO NOT MERGE] arm64: dts: allwinner: h6: Add GPU OPP table

Clément Péron peron.clem at gmail.com
Fri Jul 10 09:25:47 UTC 2020


Add an Operating Performance Points table for the GPU to
enable Dynamic Voltage & Frequency Scaling on the H6.

The voltage range is set with minival voltage set to the target
and the maximal voltage set to 1.2V. This allow DVFS framework to
work properly on board with fixed regulator.

Signed-off-by: Clément Péron <peron.clem at gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 80 ++++++++++++++++++++
 1 file changed, 80 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index 1c939c55aaea..16c3ad8abd9d 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -175,6 +175,7 @@ gpu: gpu at 1800000 {
 			clocks = <&ccu CLK_GPU>, <&ccu CLK_BUS_GPU>;
 			clock-names = "core", "bus";
 			resets = <&ccu RST_BUS_GPU>;
+			operating-points-v2 = <&gpu_opp_table>;
 			#cooling-cells = <2>;
 			status = "disabled";
 		};
@@ -1037,4 +1038,83 @@ map0 {
 			};
 		};
 	};
+
+	gpu_opp_table: gpu-opp-table {
+		compatible = "operating-points-v2";
+
+		opp at 216000000 {
+			opp-hz = /bits/ 64 <216000000>;
+			opp-microvolt = <810000 810000 1200000>;
+		};
+
+		opp at 264000000 {
+			opp-hz = /bits/ 64 <264000000>;
+			opp-microvolt = <810000 810000 1200000>;
+		};
+
+		opp at 312000000 {
+			opp-hz = /bits/ 64 <312000000>;
+			opp-microvolt = <810000 810000 1200000>;
+		};
+
+		opp at 336000000 {
+			opp-hz = /bits/ 64 <336000000>;
+			opp-microvolt = <810000 810000 1200000>;
+		};
+
+		opp at 360000000 {
+			opp-hz = /bits/ 64 <360000000>;
+			opp-microvolt = <820000 820000 1200000>;
+		};
+
+		opp at 384000000 {
+			opp-hz = /bits/ 64 <384000000>;
+			opp-microvolt = <830000 830000 1200000>;
+		};
+
+		opp at 408000000 {
+			opp-hz = /bits/ 64 <408000000>;
+			opp-microvolt = <840000 840000 1200000>;
+		};
+
+		opp at 420000000 {
+			opp-hz = /bits/ 64 <420000000>;
+			opp-microvolt = <850000 850000 1200000>;
+		};
+
+		opp at 432000000 {
+			opp-hz = /bits/ 64 <432000000>;
+			opp-microvolt = <860000 860000 1200000>;
+		};
+
+		opp at 456000000 {
+			opp-hz = /bits/ 64 <456000000>;
+			opp-microvolt = <870000 870000 1200000>;
+		};
+
+		opp at 504000000 {
+			opp-hz = /bits/ 64 <504000000>;
+			opp-microvolt = <890000 890000 1200000>;
+		};
+
+		opp at 540000000 {
+			opp-hz = /bits/ 64 <540000000>;
+			opp-microvolt = <910000 910000 1200000>;
+		};
+
+		opp at 576000000 {
+			opp-hz = /bits/ 64 <576000000>;
+			opp-microvolt = <930000 930000 1200000>;
+		};
+
+		opp at 624000000 {
+			opp-hz = /bits/ 64 <624000000>;
+			opp-microvolt = <950000 950000 1200000>;
+		};
+
+		opp at 756000000 {
+			opp-hz = /bits/ 64 <756000000>;
+			opp-microvolt = <1040000 1040000 1200000>;
+		};
+	};
 };
-- 
2.25.1



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