From e846011ee2ab1e3b364d66eb17a1650bf2760849 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Wed, 5 Apr 2017 11:06:33 +0200
Subject: ARM: sun8i: a33: Add devfreq-based GPU cooling

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>
---
 arch/arm/boot/dts/sun8i-a33.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'arch/arm/boot/dts/sun8i-a33.dtsi')

diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
index 2bf36d86a00f..eeba172a0fb7 100644
--- a/arch/arm/boot/dts/sun8i-a33.dtsi
+++ b/arch/arm/boot/dts/sun8i-a33.dtsi
@@ -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>;
-- 
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