From f13fc83465a0f2b9135e67f966a38fbb8fbb3924 Mon Sep 17 00:00:00 2001
From: Hannes Braun <hannesbraun@mail.de>
Date: Mon, 16 Jan 2023 10:32:48 +0100
Subject: [PATCH] RockPro64: add thermal fan control (#4702)

---
 ...eneral-rockpro64-thermal-fan-control.patch | 67 +++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 patch/kernel/archive/rockchip64-5.15/general-rockpro64-thermal-fan-control.patch

diff --git a/patch/kernel/archive/rockchip64-5.15/general-rockpro64-thermal-fan-control.patch b/patch/kernel/archive/rockchip64-5.15/general-rockpro64-thermal-fan-control.patch
new file mode 100644
index 0000000000..c13a36431a
--- /dev/null
+++ b/patch/kernel/archive/rockchip64-5.15/general-rockpro64-thermal-fan-control.patch
@@ -0,0 +1,67 @@
+From d09ebc6ba9ccb9b36fb860b5239d488edc794dcb Mon Sep 17 00:00:00 2001
+From: Peter Geis <pgwipeout@gmail.com>
+Date: Fri, 30 Jul 2021 11:17:27 -0400
+Subject: [PATCH] arm64: dts: rockchip: add thermal fan control to rockpro64
+
+The rockpro64 had a fan node since
+commit 5882d65c1691 ("arm64: dts: rockchip: Add PWM fan for RockPro64")
+however it was never tied into the thermal driver for automatic control.
+
+Add the links to the thermal node to permit the kernel to handle this
+automatically.
+Borrowed from the (rk3399-khadas-edge.dtsi).
+
+Signed-off-by: Peter Geis <pgwipeout@gmail.com>
+Link: https://lore.kernel.org/r/20210730151727.729822-1-pgwipeout@gmail.com
+Signed-off-by: Heiko Stuebner <heiko@sntech.de>
+---
+ .../boot/dts/rockchip/rk3399-rockpro64.dtsi   | 29 +++++++++++++++++++
+ 1 file changed, 29 insertions(+)
+
+diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
+index 6bff8db7d33e8a..83db4ca6733497 100644
+--- a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
++++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dtsi
+@@ -69,6 +69,7 @@
+ 
+ 	fan: pwm-fan {
+ 		compatible = "pwm-fan";
++		cooling-levels = <0 100 150 200 255>;
+ 		#cooling-cells = <2>;
+ 		fan-supply = <&vcc12v_dcin>;
+ 		pwms = <&pwm1 0 50000 0>;
+@@ -245,6 +246,34 @@
+ 	cpu-supply = <&vdd_cpu_b>;
+ };
+ 
++&cpu_thermal {
++	trips {
++		cpu_warm: cpu_warm {
++			temperature = <55000>;
++			hysteresis = <2000>;
++			type = "active";
++		};
++
++		cpu_hot: cpu_hot {
++			temperature = <65000>;
++			hysteresis = <2000>;
++			type = "active";
++		};
++	};
++
++	cooling-maps {
++		map2 {
++			trip = <&cpu_warm>;
++			cooling-device = <&fan THERMAL_NO_LIMIT 1>;
++		};
++
++		map3 {
++			trip = <&cpu_hot>;
++			cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
++		};
++	};
++};
++
+ &emmc_phy {
+ 	status = "okay";
+ };