From 061459c453298fb35c6fb9dba644e64049ed6a5e Mon Sep 17 00:00:00 2001
From: Hugh Cole-Baker <sigmaris@gmail.com>
Date: Sun, 12 Apr 2020 10:48:15 +0100
Subject: [PATCH] sigmaris: dts: rockpro64: Cool CPU with fan before throttling

---
 .../boot/dts/rockchip/rk3399-rockpro64.dtsi   | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
index 17af7868afe76f..1968e5e356232d 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
@@ -59,6 +59,7 @@
 		#cooling-cells = <2>;
 		fan-supply = <&vcc12v_dcin>;
 		pwms = <&pwm1 0 50000 0>;
+		cooling-levels = <0 102 170 255>;
 	};
 
 	sdio_pwrseq: sdio-pwrseq {
@@ -215,6 +216,41 @@
 	cpu-supply = <&vdd_cpu_b>;
 };
 
+&cpu_thermal {
+	trips {
+		cpu_high0: cpu_high0 {
+			temperature = <55000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+		cpu_high1: cpu_high1 {
+			temperature = <60000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+		cpu_high2: cpu_high2 {
+			temperature = <65000>;
+			hysteresis = <2000>;
+			type = "active";
+		};
+	};
+
+	cooling-maps {
+		map2 {
+			trip = <&cpu_high0>;
+			cooling-device = <&fan 0 1>;
+		};
+		map3 {
+			trip = <&cpu_high1>;
+			cooling-device = <&fan 1 2>;
+		};
+		map4 {
+			trip = <&cpu_high2>;
+			cooling-device = <&fan 2 3>;
+		};
+	};
+};
+
 &emmc_phy {
 	status = "okay";
 };