[PATCH v4 3/3] riscv: dts: spacemit: Add thermal sensor for K1 SoC

[Shuwei Wu]

Include the Thermal Sensor node in the SpacemiT K1 dtsi
with definitions for registers, clocks, and interrupts.
Additionally, configure thermal zones for the soc, package, gpu, and
clusters to enable temperature monitoring via the thermal framework.

Signed-off-by: Shuwei Wu <shuwei.wu at mailbox.org>
Tested-by: Vincent Legoll <legoll at online.fr> # OrangePi-RV2
Tested-by: Gong Shuai <gsh517025 at gmail.com>

---
Changes in v2:
- Update compatible to "spacemit,k1-tsensor"
---
 arch/riscv/boot/dts/spacemit/k1.dtsi | 101 +++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index 529ec68e9c23..e9952204224e 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -339,6 +339,96 @@ osc_32k: clock-32k {
 		};
 	};
 
+	thermal-zones {
+		soc-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+			thermal-sensors = <&thermal 0>;
+
+			trips {
+				soc-crit {
+					temperature = <115000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+		};
+
+		package-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+			thermal-sensors = <&thermal 1>;
+
+			trips {
+				package-crit {
+					temperature = <115000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+		};
+
+		gpu-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <0>;
+			thermal-sensors = <&thermal 2>;
+
+			trips {
+				gpu-alert {
+					temperature = <85000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				gpu-crit {
+					temperature = <115000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+		};
+
+		cluster0-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <0>;
+			thermal-sensors = <&thermal 3>;
+
+			trips {
+				cluster0-alert {
+					temperature = <85000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				cluster0-crit {
+					temperature = <115000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+		};
+
+		cluster1-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <0>;
+			thermal-sensors = <&thermal 4>;
+
+			trips {
+				cluster1-alert {
+					temperature = <85000>;
+					hysteresis = <2000>;
+					type = "passive";
+				};
+
+				cluster1-crit {
+					temperature = <115000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+		};
+	};
+
 	soc {
 		compatible = "simple-bus";
 		interrupt-parent = <&plic>;
@@ -494,6 +584,17 @@ syscon_apbc: system-controller at d4015000 {
 			#reset-cells = <1>;
 		};
 
+		thermal: thermal at d4018000 {
+			compatible = "spacemit,k1-tsensor";
+			reg = <0x0 0xd4018000 0x0 0x100>;
+			clocks = <&syscon_apbc CLK_TSEN>,
+				 <&syscon_apbc CLK_TSEN_BUS>;
+			clock-names = "core", "bus";
+			interrupts = <61>;
+			resets = <&syscon_apbc RESET_TSEN>;
+			#thermal-sensor-cells = <1>;
+		};
+
 		i2c6: i2c at d4018800 {
 			compatible = "spacemit,k1-i2c";
 			reg = <0x0 0xd4018800 0x0 0x38>;

-- 
2.53.0