linux-kernel - [PATCH] arm64: dts: allwinner: Add GPU operating points for H6

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Date:   Wed, 29 May 2019 17:32:55 +0200
From:   Tomeu Vizoso <tomeu.vizoso@...labora.com>
To:     linux-kernel@...r.kernel.org
Cc:     Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Clément Péron <peron.clem@...il.com>,
        Maxime Ripard <maxime.ripard@...tlin.com>,
        Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org (moderated list:ARM/Allwinner
        sunXi SoC support),
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS)
Subject: [PATCH] arm64: dts: allwinner: Add GPU operating points for H6

The GPU driver needs them to change the clock frequency and regulator
voltage depending on the load.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@...labora.com>
Cc: Clément Péron <peron.clem@...il.com>

---

Feel free to pick up this patch if you are going to keep pushing this
series forward.

Thanks,

Tomeu
---
 arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 66 ++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index 6aad06095c40..decf7b56e2df 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -157,6 +157,71 @@
 			allwinner,sram = <&ve_sram 1>;
 		};
 
+		gpu_opp_table: opp-table2 {
+			compatible = "operating-points-v2";
+
+			opp00 {
+				opp-hz = /bits/ 64 <756000000>;
+				opp-microvolt = <1040000>;
+			};
+			opp01 {
+				opp-hz = /bits/ 64 <624000000>;
+				opp-microvolt = <950000>;
+			};
+			opp02 {
+				opp-hz = /bits/ 64 <576000000>;
+				opp-microvolt = <930000>;
+			};
+			opp03 {
+				opp-hz = /bits/ 64 <540000000>;
+				opp-microvolt = <910000>;
+			};
+			opp04 {
+				opp-hz = /bits/ 64 <504000000>;
+				opp-microvolt = <890000>;
+			};
+			opp05 {
+				opp-hz = /bits/ 64 <456000000>;
+				opp-microvolt = <870000>;
+			};
+			opp06 {
+				opp-hz = /bits/ 64 <432000000>;
+				opp-microvolt = <860000>;
+			};
+			opp07 {
+				opp-hz = /bits/ 64 <420000000>;
+				opp-microvolt = <850000>;
+			};
+			opp08 {
+				opp-hz = /bits/ 64 <408000000>;
+				opp-microvolt = <840000>;
+			};
+			opp09 {
+				opp-hz = /bits/ 64 <384000000>;
+				opp-microvolt = <830000>;
+			};
+			opp10 {
+				opp-hz = /bits/ 64 <360000000>;
+				opp-microvolt = <820000>;
+			};
+			opp11 {
+				opp-hz = /bits/ 64 <336000000>;
+				opp-microvolt = <810000>;
+			};
+			opp12 {
+				opp-hz = /bits/ 64 <312000000>;
+				opp-microvolt = <810000>;
+			};
+			opp13 {
+				opp-hz = /bits/ 64 <264000000>;
+				opp-microvolt = <810000>;
+			};
+			opp14 {
+				opp-hz = /bits/ 64 <216000000>;
+				opp-microvolt = <810000>;
+			};
+		};
+
 		gpu: gpu@...0000 {
 			compatible = "allwinner,sun50i-h6-mali",
 				     "arm,mali-t720";
@@ -168,6 +233,7 @@
 			clocks = <&ccu CLK_GPU>, <&ccu CLK_BUS_GPU>;
 			clock-names = "core", "bus";
 			resets = <&ccu RST_BUS_GPU>;
+			operating-points-v2 = <&gpu_opp_table>;
 			status = "disabled";
 		};
 
-- 
2.20.1