diff mbox

[v4,7/8] ARM: sun8i: a33: Add devfreq-based GPU cooling

Message ID 20170405090634.4649-8-quentin.schulz@free-electrons.com (mailing list archive)
State New, archived
Headers show

Commit Message

Quentin Schulz April 5, 2017, 9:06 a.m. UTC 
From: Maxime Ripard <maxime.ripard@free-electrons.com>

This adds GPU thermal throttling for the Allwinner A33.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>
---

v3:
  - got rid of cooling-min-level and cooling-max-level as it's not used in any
  code in the kernel,

added in v2
 arch/arm/boot/dts/sun8i-a23-a33.dtsi |  1 +
 arch/arm/boot/dts/sun8i-a33.dtsi     | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)

Comments

Maxime Ripard April 5, 2017, 12:16 p.m. UTC | #1 
On Wed, Apr 05, 2017 at 11:06:33AM +0200, Quentin Schulz wrote:
> From: Maxime Ripard <maxime.ripard@free-electrons.com>
> 
> This adds GPU thermal throttling for the Allwinner A33.
> 
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> Signed-off-by: Quentin Schulz <quentin.schulz@free-electrons.com>

Applied, thanks!
Maxime
diff mbox

Patch

diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
index 5e8725d..6d81a6d 100644
--- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi
@@ -495,6 +495,7 @@ 
 
 			assigned-clocks = <&ccu CLK_GPU>;
 			assigned-clock-rates = <384000000>;
+			#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 b88c107..541ca45 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi
@@ -188,6 +188,16 @@ 
 					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 {
@@ -198,6 +208,13 @@ 
 					type = "passive";
 				};
 
+				gpu_alert0: gpu_alert0 {
+					/* milliCelsius */
+					temperature = <85000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
 				cpu_alert1: cpu_alert1 {
 					/* milliCelsius */
 					temperature = <90000>;
@@ -205,6 +222,13 @@ 
 					type = "hot";
 				};
 
+				gpu_alert1: gpu_alert1 {
+					/* milliCelsius */
+					temperature = <95000>;
+					hysteresis = <2000>;
+					type = "hot";
+				};
+
 				cpu_crit: cpu_crit {
 					/* milliCelsius */
 					temperature = <110000>;