dt-bindings: thermal: rcar-thermal: Convert bindings to json-schema

Convert Renesas R-Car Thermal bindings documentation to json-schema.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/thermal/rcar-thermal.txt

-* Renesas R-Car Thermal
-
-Required properties:
-- compatible		: "renesas,thermal-<soctype>",
-			   "renesas,rcar-gen2-thermal" (with thermal-zone) or
-			   "renesas,rcar-thermal" (without thermal-zone) as
-                           fallback except R-Car V3M/E3/D3 and RZ/G2E.
-			  Examples with soctypes are:
-			    - "renesas,thermal-r8a73a4" (R-Mobile APE6)
-			    - "renesas,thermal-r8a7743" (RZ/G1M)
-			    - "renesas,thermal-r8a7744" (RZ/G1N)
-			    - "renesas,thermal-r8a774c0" (RZ/G2E)
-			    - "renesas,thermal-r8a7779" (R-Car H1)
-			    - "renesas,thermal-r8a7790" (R-Car H2)
-			    - "renesas,thermal-r8a7791" (R-Car M2-W)
-			    - "renesas,thermal-r8a7792" (R-Car V2H)
-			    - "renesas,thermal-r8a7793" (R-Car M2-N)
-			    - "renesas,thermal-r8a77970" (R-Car V3M)
-			    - "renesas,thermal-r8a77990" (R-Car E3)
-			    - "renesas,thermal-r8a77995" (R-Car D3)
-- reg			: Address range of the thermal registers.
-			  The 1st reg will be recognized as common register
-			  if it has "interrupts".
-
-Option properties:
-
-- interrupts		: If present should contain 3 interrupts for
-                          R-Car V3M/E3/D3 and RZ/G2E or 1 interrupt otherwise.
-
-Example (non interrupt support):
-
-thermal@ffc48000 {
-	compatible = "renesas,thermal-r8a7779", "renesas,rcar-thermal";
-	reg = <0xffc48000 0x38>;
-};
-
-Example (interrupt support):
-
-thermal@e61f0000 {
-	compatible = "renesas,thermal-r8a73a4", "renesas,rcar-thermal";
-	reg = <0xe61f0000 0x14
-		0xe61f0100 0x38
-		0xe61f0200 0x38
-		0xe61f0300 0x38>;
-	interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
-};
-
-Example (with thermal-zone):
-
-thermal-zones {
-	cpu_thermal: cpu-thermal {
-		polling-delay-passive	= <1000>;
-		polling-delay		= <5000>;
-
-		thermal-sensors = <&thermal>;
-
-		trips {
-			cpu-crit {
-				temperature	= <115000>;
-				hysteresis	= <0>;
-				type		= "critical";
-			};
-		};
-		cooling-maps {
-		};
-	};
-};
-
-thermal: thermal@e61f0000 {
-	compatible =	"renesas,thermal-r8a7790",
-			"renesas,rcar-gen2-thermal",
-			"renesas,rcar-thermal";
-	reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>;
-	interrupts = <0 69 IRQ_TYPE_LEVEL_HIGH>;
-	clocks = <&mstp5_clks R8A7790_CLK_THERMAL>;
-	power-domains = <&cpg_clocks>;
-	#thermal-sensor-cells = <0>;
-};

Documentation/devicetree/bindings/thermal/rcar-thermal.yaml

+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2020 Renesas Electronics Corp.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/rcar-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car Thermal
+
+maintainers:
+  - Niklas Söderlund <niklas.soderlund@ragnatech.se>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - renesas,thermal-r8a73a4 # R-Mobile APE6
+              - renesas,thermal-r8a7779 # R-Car H1
+          - const: renesas,rcar-thermal # Generic without thermal-zone
+      - items:
+          - enum:
+              - renesas,thermal-r8a7743 # RZ/G1M
+              - renesas,thermal-r8a7744 # RZ/G1N
+          - const: renesas,rcar-gen2-thermal # Generic thermal-zone
+      - items:
+          - enum:
+              - renesas,thermal-r8a7790 # R-Car H2
+              - renesas,thermal-r8a7791 # R-Car M2-W
+              - renesas,thermal-r8a7792 # R-Car V2H
+              - renesas,thermal-r8a7793 # R-Car M2-N
+          - const: renesas,rcar-gen2-thermal # Generic thermal-zone
+          - const: renesas,rcar-thermal # Generic without thermal-zone
+      - items:
+          - enum:
+              - renesas,thermal-r8a774c0 # RZ/G2E
+              - renesas,thermal-r8a77970 # R-Car V3M
+              - renesas,thermal-r8a77990 # R-Car E3
+              - renesas,thermal-r8a77995 # R-Car D3
+  reg:
+    description:
+      Address ranges of the thermal registers. If more then one range is given
+      the first one must be the common registers followed by each sensor
+      according the the datasheet.
+    minItems: 1
+    maxItems: 4
+
+  interrupts:
+    minItems: 1
+    maxItems: 3
+
+  clocks:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - renesas,thermal-r8a73a4 # R-Mobile APE6
+          - renesas,thermal-r8a7779 # R-Car H1
+then:
+  required:
+    - compatible
+    - reg
+else:
+  required:
+    - compatible
+    - reg
+    - interrupts
+    - clocks
+    - power-domains
+    - resets
+
+examples:
+  # Example (non interrupt support)
+  - |
+    thermal@ffc48000 {
+            compatible = "renesas,thermal-r8a7779", "renesas,rcar-thermal";
+            reg = <0xffc48000 0x38>;
+    };
+
+  # Example (interrupt support)
+  - |
+    #include <dt-bindings/clock/r8a73a4-clock.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    thermal@e61f0000 {
+            compatible = "renesas,thermal-r8a73a4", "renesas,rcar-thermal";
+            reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>,
+                  <0 0xe61f0200 0 0x38>, <0 0xe61f0300 0 0x38>;
+            interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&mstp5_clks R8A73A4_CLK_THERMAL>;
+            power-domains = <&pd_c5>;
+    };
+
+  # Example (with thermal-zone)
+  - |
+    #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/power/r8a7790-sysc.h>
+
+    thermal: thermal@e61f0000 {
+      compatible = "renesas,thermal-r8a7790",
+                   "renesas,rcar-gen2-thermal",
+                   "renesas,rcar-thermal";
+            reg = <0 0xe61f0000 0 0x10>, <0 0xe61f0100 0 0x38>;
+            interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+            clocks = <&cpg CPG_MOD 522>;
+            power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
+            resets = <&cpg 522>;
+            #thermal-sensor-cells = <0>;
+    };
+
+    thermal-zones {
+            cpu_thermal: cpu-thermal {
+                    polling-delay-passive = <1000>;
+                    polling-delay = <5000>;
+
+                    thermal-sensors = <&thermal>;
+
+                    trips {
+                            cpu-crit {
+                                    temperature = <115000>;
+                                    hysteresis = <0>;
+                                    type = "critical";
+                            };
+                    };
+                    cooling-maps {
+                    };
+            };
+    };