[PATCH] arm64: dts: allwinner: a64: Add GPU opp table

Jernej Skrabec
2021-09-12T09:50:51Z

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