[PATCH v2] arm64: dts: renesas: r8a77980: add thermal support

[Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>]

Describe THS/CIVM in the R8A77980 device trees.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>

---
This patch is against the 'renesas-devel-20181008-v4.19-rc7' tag of Simon
Horman's 'renesas.git' repo.

Changes in version 2:
- renamed the thermal device node label;
- renamed the thermal zone nodes;
- added the passive trip point in the 1st thermal zone and the passive and
  critical trip points in the 2nd thermal zone;
- changed the "hysteresis" prop in the critical trip point;
- removed the empty "cooling-maps" node from the 1st thermal zone.

 arch/arm64/boot/dts/renesas/r8a77980.dtsi |   53 ++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

Index: renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980.dtsi
+++ renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
@@ -330,6 +330,19 @@
 			#power-domain-cells = <1>;
 		};
 
+		tsc: thermal@e6198000 {
+			compatible = "renesas,r8a77980-thermal";
+			reg = <0 0xe6198000 0 0x100>,
+			      <0 0xe61a0000 0 0x100>;
+			interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 522>;
+			power-domains = <&sysc R8A77980_PD_ALWAYS_ON>;
+			resets = <&cpg 522>;
+			#thermal-sensor-cells = <1>;
+		};
+
 		intc_ex: interrupt-controller@e61c0000 {
 			compatible = "renesas,intc-ex-r8a77980", "renesas,irqc";
 			#interrupt-cells = <2>;
@@ -1404,6 +1417,46 @@
 		};
 	};
 
+	thermal-zones {
+		thermal-sensor-1 {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsc 0>;
+
+			trips {
+				sensor1-passive {
+					temperature = <95000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+				sensor1-critical {
+					temperature = <120000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
+		thermal-sensor-2 {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsc 1>;
+
+			trips {
+				sensor2-passive {
+					temperature = <95000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+				sensor2-critical {
+					temperature = <120000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) |