[PATCH v2 8/8] arm64: dts: allwinner: A523: Add thermal sensors and zones

[iuncuim <iuncuim@gmail.com>]

From: Mikhail Kalashnikov <iuncuim@gmail.com>

The A523 processor has two temperature controllers, THS0 and THS1.
THS0 has only one temperature sensor, which is located in the DRAM.

THS1 does have 3 sensors:
ths1_0 - "big" cores
ths1_1 - "little" cores
ths1_2 - gpu

Add the thermal sensor configuration and the thermal zones.
Trips temperature, polling-delay and sustainable-power parameters are derived
from the manufacturer's BSP.

Signed-off-by: Mikhail Kalashnikov <iuncuim@gmail.com>
---
 .../arm64/boot/dts/allwinner/sun55i-a523.dtsi | 154 ++++++++++++++++++
 1 file changed, 154 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 295292d67..a1304c55c 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -7,6 +7,7 @@
 #include <dt-bindings/clock/sun55i-a523-r-ccu.h>
 #include <dt-bindings/reset/sun55i-a523-ccu.h>
 #include <dt-bindings/reset/sun55i-a523-r-ccu.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	interrupt-parent = <&gic>;
@@ -22,6 +23,7 @@ cpu0: cpu@0 {
 			device_type = "cpu";
 			reg = <0x000>;
 			enable-method = "psci";
+			#cooling-cells = <2>;
 		};
 
 		cpu1: cpu@100 {
@@ -29,6 +31,7 @@ cpu1: cpu@100 {
 			device_type = "cpu";
 			reg = <0x100>;
 			enable-method = "psci";
+			#cooling-cells = <2>;
 		};
 
 		cpu2: cpu@200 {
@@ -36,6 +39,7 @@ cpu2: cpu@200 {
 			device_type = "cpu";
 			reg = <0x200>;
 			enable-method = "psci";
+			#cooling-cells = <2>;
 		};
 
 		cpu3: cpu@300 {
@@ -43,6 +47,7 @@ cpu3: cpu@300 {
 			device_type = "cpu";
 			reg = <0x300>;
 			enable-method = "psci";
+			#cooling-cells = <2>;
 		};
 
 		cpu4: cpu@400 {
@@ -50,6 +55,7 @@ cpu4: cpu@400 {
 			device_type = "cpu";
 			reg = <0x400>;
 			enable-method = "psci";
+			#cooling-cells = <2>;
 		};
 
 		cpu5: cpu@500 {
@@ -57,6 +63,7 @@ cpu5: cpu@500 {
 			device_type = "cpu";
 			reg = <0x500>;
 			enable-method = "psci";
+			#cooling-cells = <2>;
 		};
 
 		cpu6: cpu@600 {
@@ -64,6 +71,7 @@ cpu6: cpu@600 {
 			device_type = "cpu";
 			reg = <0x600>;
 			enable-method = "psci";
+			#cooling-cells = <2>;
 		};
 
 		cpu7: cpu@700 {
@@ -71,6 +79,7 @@ cpu7: cpu@700 {
 			device_type = "cpu";
 			reg = <0x700>;
 			enable-method = "psci";
+			#cooling-cells = <2>;
 		};
 	};
 
@@ -181,12 +190,46 @@ ccu: clock-controller@2001000 {
 			#reset-cells = <1>;
 		};
 
+		ths1: thermal-sensor@2009400 {
+			compatible = "allwinner,sun55i-a523-ths1";
+			reg = <0x02009400 0x400>;
+			interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_THS>, <&ccu CLK_GPADC1>;
+			clock-names = "bus", "gpadc";
+			resets = <&ccu RST_BUS_THS>;
+			nvmem-cells = <&ths_calibration0>, <&ths_calibration1>;
+			nvmem-cell-names = "calibration",
+				     "calibration-second-part";
+			#thermal-sensor-cells = <1>;
+		};
+
+		ths0: thermal-sensor@200a000 {
+			compatible = "allwinner,sun55i-a523-ths0";
+			reg = <0x0200a000 0x400>;
+			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&ccu CLK_BUS_THS>, <&ccu CLK_GPADC0>;
+			clock-names = "bus", "gpadc";
+			resets = <&ccu RST_BUS_THS>;
+			nvmem-cells = <&ths_calibration0>, <&ths_calibration1>;
+			nvmem-cell-names = "calibration",
+				     "calibration-second-part";
+			#thermal-sensor-cells = <0>;
+		};
+
 		sid: efuse@3006000 {
 			compatible = "allwinner,sun55i-a523-sid",
 				     "allwinner,sun50i-a64-sid";
 			reg = <0x03006000 0x1000>;
 			#address-cells = <1>;
 			#size-cells = <1>;
+
+			ths_calibration0: ths-calibration0@38 {
+				reg = <0x38 0x8>;
+			};
+
+			ths_calibration1: ths-calibration1@44 {
+				reg = <0x44 0x8>;
+			};
 		};
 
 		mmc0: mmc@4020000 {
@@ -644,4 +687,115 @@ rtc: rtc@7090000 {
 			#clock-cells = <1>;
 		};
 	};
+
+	thermal-zones {
+		cpu0_thermal: cpu0-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <1000>;
+			thermal-sensors = <&ths1 1>;
+			sustainable-power = <1200>;
+
+			trips {
+				cpu0_threshold: cpu-trip-0 {
+					temperature = <70000>;
+					type = "passive";
+					hysteresis = <0>;
+				};
+				cpu0_target: cpu-trip-1 {
+					temperature = <90000>;
+					type = "passive";
+					hysteresis = <0>;
+				};
+				cpu0_critical: cpu-trip-2 {
+					temperature = <110000>;
+					type = "critical";
+					hysteresis = <0>;
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu0_target>;
+					cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+
+		cpu4_thermal: cpu4-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <1000>;
+			thermal-sensors = <&ths1 0>;
+			sustainable-power = <1600>;
+
+			trips {
+				cpu4_threshold: cpu-trip-0 {
+					temperature = <70000>;
+					type = "passive";
+					hysteresis = <0>;
+				};
+				cpu4_target: cpu-trip-1 {
+					temperature = <90000>;
+					type = "passive";
+					hysteresis = <0>;
+				};
+				cpu4_critical: cpu-trip-2 {
+					temperature = <110000>;
+					type = "critical";
+					hysteresis = <0>;
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu4_target>;
+					cooling-device = <&cpu4 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu5 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu6 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&cpu7 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+
+		gpu-thermal {
+			polling-delay-passive = <100>;
+			polling-delay = <1000>;
+			thermal-sensors = <&ths1 2>;
+			sustainable-power = <2400>;
+
+			gpu-trips {
+				gpu_temp_threshold: gpu-trip-0 {
+					temperature = <60000>;
+					type = "passive";
+					hysteresis = <0>;
+				};
+				gpu_temp_target: gpu-trip-1 {
+					temperature = <90000>;
+					type = "passive";
+					hysteresis = <0>;
+				};
+				gpu_temp_critical: gpu-trip-2 {
+					temperature = <110000>;
+					type = "critical";
+					hysteresis = <0>;
+				};
+			};
+		};
+
+		ddr-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+			thermal-sensors = <&ths0>;
+
+			trips {
+				ddr_temp_critical: ddr-trip-0 {
+					temperature = <110000>;
+					type = "critical";
+					hysteresis = <0>;
+				};
+			};
+		};
+	};
 };
-- 
2.49.0