From: Michal Wilczynski <m.wilczynski@samsung.com>
Date: Fri, 9 Aug 2024 15:58:12 +0000 (+0200)
Subject: riscv: dts: thead: Enable thead fan
X-Git-Tag: accepted/tizen/unified/x/20240818.074458~7
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=254d3684066acfef30e1a24d0a1dd0e4cebf0416;p=platform%2Fkernel%2Flinux-thead.git

riscv: dts: thead: Enable thead fan

The drivers responsible for supporting thead fan are already in the
repo. Enable the fan in the device tree for better SoC usability.
Ported from [1].

[1] - https://github.com/revyos/thead-kernel.git

Change-Id: I8b7efb97ec4ceb0c0484dd49631aef9a4101ab3b
Signed-off-by: Michal Wilczynski <m.wilczynski@samsung.com>
---

diff --git a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
index 9507df3ea7c7..52f3c4c68d5a 100644
--- a/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
+++ b/arch/riscv/boot/dts/thead/th1520-lichee-module-4a.dtsi
@@ -40,6 +40,61 @@
 		default-brightness-level = <7>;
 	};
 
+	thermal-zones {
+		cpu-thermal-zone {
+			sustainable-power = <1600>;
+
+			trips {
+				fan_config0: fan-trip0 {
+					temperature = <40000>;
+					hysteresis = <5000>;
+					type = "active";
+				};
+
+				fan_config1: fan-trip1 {
+					temperature = <50000>;
+					hysteresis = <5000>;
+					type = "active";
+				};
+
+				fan_config2: fan-trip2 {
+					temperature = <60000>;
+					hysteresis = <5000>;
+					type = "active";
+				};
+			};
+
+			cooling-maps {
+				fan-on {
+					trip = <&fan_config0>;
+					cooling-device =
+						<&fan 1 1>;
+				};
+				fan-faster {
+					trip = <&fan_config1>;
+					cooling-device =
+						<&fan 2 2>;
+				};
+				fan-full {
+					trip = <&fan_config2>;
+					cooling-device =
+						<&fan 3 3>;
+				};
+			};
+		};
+
+		dev-thermal-zone {
+			sustainable-power = <3000>;
+		};
+	};
+
+	fan: pwm-fan {
+		compatible = "pwm-fan";
+		#cooling-cells = <2>;
+		pwms = <&pwm 1 10000000 0>;
+		cooling-levels = <0 64 192 255>;
+	};
+
 	aon: aon {
 		compatible = "thead,light-aon";
 		mbox-names = "aon";