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Commit e846011e authored by Maxime Ripard's avatar Maxime Ripard
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ARM: sun8i: a33: Add devfreq-based GPU cooling



This adds GPU thermal throttling for the Allwinner A33.

Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: default avatarQuentin Schulz <quentin.schulz@free-electrons.com>
parent a5ce7a3d
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+1 −0
Original line number Diff line number Diff line
@@ -492,6 +492,7 @@
			clocks = <&ccu CLK_BUS_GPU>, <&ccu CLK_GPU>;
			clock-names = "bus", "core";
			resets = <&ccu RST_BUS_GPU>;
			#cooling-cells = <2>;

			assigned-clocks = <&ccu CLK_GPU>;
			assigned-clock-rates = <408000000>;
+24 −0
Original line number Diff line number Diff line
@@ -407,6 +407,16 @@
					trip = <&cpu_alert1>;
					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
				};

				map2 {
					trip = <&gpu_alert0>;
					cooling-device = <&mali 1 THERMAL_NO_LIMIT>;
				};

				map3 {
					trip = <&gpu_alert1>;
					cooling-device = <&mali 2 THERMAL_NO_LIMIT>;
				};
			};

			trips {
@@ -417,6 +427,13 @@
					type = "passive";
				};

				gpu_alert0: gpu_alert0 {
					/* milliCelsius */
					temperature = <85000>;
					hysteresis = <2000>;
					type = "passive";
				};

				cpu_alert1: cpu_alert1 {
					/* milliCelsius */
					temperature = <90000>;
@@ -424,6 +441,13 @@
					type = "hot";
				};

				gpu_alert1: gpu_alert1 {
					/* milliCelsius */
					temperature = <95000>;
					hysteresis = <2000>;
					type = "hot";
				};

				cpu_crit: cpu_crit {
					/* milliCelsius */
					temperature = <110000>;