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* [PATCH] dt-bindings: thermal: convert Mediatek Thermal to the json-schema
@ 2023-11-16 12:02 Rafał Miłecki
  2023-11-16 13:27 ` Rob Herring
  2023-11-16 14:38 ` Krzysztof Kozlowski
  0 siblings, 2 replies; 3+ messages in thread
From: Rafał Miłecki @ 2023-11-16 12:02 UTC (permalink / raw)
  To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Matthias Brugger,
	AngeloGioacchino Del Regno
  Cc: Rafael J . Wysocki, Daniel Lezcano, Zhang Rui, Lukasz Luba,
	linux-pm, devicetree, linux-kernel, linux-arm-kernel,
	linux-mediatek, Rafał Miłecki

From: Rafał Miłecki <rafal@milecki.pl>

This helps validating DTS files.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
 .../bindings/thermal/mediatek-thermal.txt     | 52 ----------
 .../bindings/thermal/mediatek-thermal.yaml    | 98 +++++++++++++++++++
 2 files changed, 98 insertions(+), 52 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
 create mode 100644 Documentation/devicetree/bindings/thermal/mediatek-thermal.yaml

diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt b/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
deleted file mode 100644
index ac39c7156fde..000000000000
--- a/Documentation/devicetree/bindings/thermal/mediatek-thermal.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-* Mediatek Thermal
-
-This describes the device tree binding for the Mediatek thermal controller
-which measures the on-SoC temperatures. This device does not have its own ADC,
-instead it directly controls the AUXADC via AHB bus accesses. For this reason
-this device needs phandles to the AUXADC. Also it controls a mux in the
-apmixedsys register space via AHB bus accesses, so a phandle to the APMIXEDSYS
-is also needed.
-
-Required properties:
-- compatible:
-  - "mediatek,mt8173-thermal" : For MT8173 family of SoCs
-  - "mediatek,mt2701-thermal" : For MT2701 family of SoCs
-  - "mediatek,mt2712-thermal" : For MT2712 family of SoCs
-  - "mediatek,mt7622-thermal" : For MT7622 SoC
-  - "mediatek,mt7981-thermal", "mediatek,mt7986-thermal" : For MT7981 SoC
-  - "mediatek,mt7986-thermal" : For MT7986 SoC
-  - "mediatek,mt8183-thermal" : For MT8183 family of SoCs
-  - "mediatek,mt8365-thermal" : For MT8365 family of SoCs
-  - "mediatek,mt8516-thermal", "mediatek,mt2701-thermal : For MT8516 family of SoCs
-- reg: Address range of the thermal controller
-- interrupts: IRQ for the thermal controller
-- clocks, clock-names: Clocks needed for the thermal controller. required
-                       clocks are:
-		       "therm":	 Main clock needed for register access
-		       "auxadc": The AUXADC clock
-- mediatek,auxadc: A phandle to the AUXADC which the thermal controller uses
-- mediatek,apmixedsys: A phandle to the APMIXEDSYS controller.
-- #thermal-sensor-cells : Should be 0. See Documentation/devicetree/bindings/thermal/thermal-sensor.yaml for a description.
-
-Optional properties:
-- resets: Reference to the reset controller controlling the thermal controller.
-- nvmem-cells: A phandle to the calibration data provided by a nvmem device. If
-               unspecified default values shall be used.
-- nvmem-cell-names: Should be "calibration-data"
-
-Example:
-
-	thermal: thermal@1100b000 {
-		#thermal-sensor-cells = <1>;
-		compatible = "mediatek,mt8173-thermal";
-		reg = <0 0x1100b000 0 0x1000>;
-		interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>;
-		clock-names = "therm", "auxadc";
-		resets = <&pericfg MT8173_PERI_THERM_SW_RST>;
-		reset-names = "therm";
-		mediatek,auxadc = <&auxadc>;
-		mediatek,apmixedsys = <&apmixedsys>;
-		nvmem-cells = <&thermal_calibration_data>;
-		nvmem-cell-names = "calibration-data";
-	};
diff --git a/Documentation/devicetree/bindings/thermal/mediatek-thermal.yaml b/Documentation/devicetree/bindings/thermal/mediatek-thermal.yaml
new file mode 100644
index 000000000000..0e036b22b82b
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/mediatek-thermal.yaml
@@ -0,0 +1,98 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/thermal/mediatek-thermal.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Thermal
+
+description: >
+  This describes the device tree binding for the Mediatek thermal controller
+  which measures the on-SoC temperatures. This device does not have its own ADC,
+  instead it directly controls the AUXADC via AHB bus accesses. For this reason
+  this device needs phandles to the AUXADC. Also it controls a mux in the
+  apmixedsys register space via AHB bus accesses, so a phandle to the APMIXEDSYS
+  is also needed.
+
+allOf:
+  - $ref: thermal-sensor.yaml#
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt2701-thermal
+      - mediatek,mt2712-thermal
+      - mediatek,mt7622-thermal
+      - mediatek,mt7981-thermal
+      - mediatek,mt7986-thermal
+      - mediatek,mt8173-thermal
+      - mediatek,mt8183-thermal
+      - mediatek,mt8365-thermal
+      - mediatek,mt8516-thermal
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Main clock needed for register access
+      - description: The AUXADC clock
+
+  clock-names:
+    items:
+      - const: therm
+      - const: auxadc
+
+  mediatek,auxadc:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: A phandle to the AUXADC which the thermal controller uses
+
+  mediatek,apmixedsys:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: A phandle to the APMIXEDSYS controller
+
+  resets: Reference to the reset controller controlling the thermal controller.
+
+  nvmem-cells:
+    items:
+      - description: >
+          NVMEM cell with EEPROMA phandle to the calibration data provided by an
+          NVMEM device. If unspecified default values shall be used.
+
+  nvmem-cell-names:
+    items:
+      - const: calibration-data
+
+unevaluatedProperties: false
+
+required:
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - mediatek,auxadc
+  - mediatek,apmixedsys
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/mt8173-clk.h>
+    #include <dt-bindings/reset/mt8173-resets.h>
+
+    thermal@1100b000 {
+        compatible = "mediatek,mt8173-thermal";
+        reg = <0x1100b000 0x1000>;
+        interrupts = <0 70 IRQ_TYPE_LEVEL_LOW>;
+        clocks = <&pericfg CLK_PERI_THERM>, <&pericfg CLK_PERI_AUXADC>;
+        clock-names = "therm", "auxadc";
+        resets = <&pericfg MT8173_PERI_THERM_SW_RST>;
+        reset-names = "therm";
+        mediatek,auxadc = <&auxadc>;
+        mediatek,apmixedsys = <&apmixedsys>;
+        nvmem-cells = <&thermal_calibration_data>;
+        nvmem-cell-names = "calibration-data";
+        #thermal-sensor-cells = <1>;
+    };
-- 
2.35.3



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2023-11-16 12:02 [PATCH] dt-bindings: thermal: convert Mediatek Thermal to the json-schema Rafał Miłecki
2023-11-16 13:27 ` Rob Herring
2023-11-16 14:38 ` Krzysztof Kozlowski

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