[PATCH v2 11/11] ARM: sun8i: a33: Add devfreq-based GPU cooling
From: Quentin Schulz <hidden>
Date: 2017-03-10 10:40:18
Also in:
linux-arm-kernel, linux-iio, lkml
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> This adds GPU thermal throttling for the Allwinner A33. Signed-off-by: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> Signed-off-by: Quentin Schulz <quentin.schulz-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org> --- added in v2 arch/arm/boot/dts/sun8i-a23-a33.dtsi | 3 +++ arch/arm/boot/dts/sun8i-a33.dtsi | 24 ++++++++++++++++++++++++ 2 files changed, 27 insertions(+)
diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
index 5e8725d..dc4e942 100644
--- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi@@ -495,6 +495,9 @@ assigned-clocks = <&ccu CLK_GPU>; assigned-clock-rates = <384000000>; + cooling-min-level = <0>; + cooling-max-level = <2>; + #cooling-cells = <2>; }; gic: interrupt-controller@01c81000 {
diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
index df6e77f..6552762 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi@@ -202,6 +202,16 @@ 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 {
@@ -212,6 +222,13 @@ type = "passive"; }; + gpu_alert0: gpu_alert0 { + /* milliCelsius */ + temperature = <85000>; + hysteresis = <2000>; + type = "passive"; + }; + cpu_alert1: cpu_alert1 { /* milliCelsius */ temperature = <90000>;
@@ -219,6 +236,13 @@ type = "hot"; }; + gpu_alert1: gpu_alert1 { + /* milliCelsius */ + temperature = <95000>; + hysteresis = <2000>; + type = "hot"; + }; + cpu_crit: cpu_crit { /* milliCelsius */ temperature = <110000>;
--
2.9.3