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From: Jernej Skrabec <jernej.skrabec@gmail.com>
To: mripard@kernel.org, wens@csie.org
Cc: robh+dt@kernel.org, devicetree@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	Jernej Skrabec <jernej.skrabec@gmail.com>
Subject: [PATCH] arm64: dts: allwinner: a64: Add GPU opp table
Date: Sun, 12 Sep 2021 11:50:32 +0200	[thread overview]
Message-ID: <20210912095032.2397824-1-jernej.skrabec@gmail.com> (raw)

GPU on A64 currently runs at default frequency, which is 297 MHz. This
is a bit low in some cases and noticeable lag can be observed in GPU
rendered UIs. GPU is capable to run at 432 MHz.

Add GPU OPP table.

Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 6ddb717f2f98..5ba379078500 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -102,6 +102,22 @@ de: display-engine {
 		status = "disabled";
 	};
 
+	gpu_opp_table: opp-table-gpu {
+		compatible = "operating-points-v2";
+
+		opp-120000000 {
+			opp-hz = /bits/ 64 <120000000>;
+		};
+
+		opp-312000000 {
+			opp-hz = /bits/ 64 <312000000>;
+		};
+
+		opp-432000000 {
+			opp-hz = /bits/ 64 <432000000>;
+		};
+	};
+
 	osc24M: osc24M_clk {
 		#clock-cells = <0>;
 		compatible = "fixed-clock";
@@ -1103,6 +1119,7 @@ mali: gpu@1c40000 {
 			clocks = <&ccu CLK_BUS_GPU>, <&ccu CLK_GPU>;
 			clock-names = "bus", "core";
 			resets = <&ccu RST_BUS_GPU>;
+			operating-points-v2 = <&gpu_opp_table>;
 		};
 
 		gic: interrupt-controller@1c81000 {
-- 
2.33.0


             reply	other threads:[~2021-09-12  9:50 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-12  9:50 Jernej Skrabec [this message]
2021-09-13  7:18 ` [PATCH] arm64: dts: allwinner: a64: Add GPU opp table Maxime Ripard

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