linux-kernel - [PATCH 2/2] dt-bindings: watchdog: mediatek: Convert binding to YAML

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Date:   Fri, 22 Apr 2022 20:10:17 +0800
From:   Allen-KH Cheng <allen-kh.cheng@...iatek.com>
To:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        "Matthias Brugger" <matthias.bgg@...il.com>,
        Rob Herring <robh+dt@...nel.org>, <nfraprado@...labora.com>
CC:     <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>,
        <srv_heupstream@...iatek.com>, Chen-Yu Tsai <wenst@...omium.org>,
        Ryder Lee <ryder.lee@...nel.org>,
        Allen-KH Cheng <allen-kh.cheng@...iatek.com>
Subject: [PATCH 2/2] dt-bindings: watchdog: mediatek: Convert binding to YAML

Convert Mediatek watchdog devicetree binding to YAML.

Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>
---
 .../devicetree/bindings/watchdog/mtk-wdt.txt  | 42 ----------
 .../devicetree/bindings/watchdog/mtk-wdt.yaml | 76 +++++++++++++++++++
 2 files changed, 76 insertions(+), 42 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/mtk-wdt.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
deleted file mode 100644
index 762c62e428ef..000000000000
--- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
+++ /dev/null
@@ -1,42 +0,0 @@
-Mediatek SoCs Watchdog timer
-
-The watchdog supports a pre-timeout interrupt that fires timeout-sec/2
-before the expiry.
-
-Required properties:
-
-- compatible should contain:
-	"mediatek,mt2701-wdt", "mediatek,mt6589-wdt": for MT2701
-	"mediatek,mt2712-wdt": for MT2712
-	"mediatek,mt6582-wdt", "mediatek,mt6589-wdt": for MT6582
-	"mediatek,mt6589-wdt": for MT6589
-	"mediatek,mt6797-wdt", "mediatek,mt6589-wdt": for MT6797
-	"mediatek,mt7622-wdt", "mediatek,mt6589-wdt": for MT7622
-	"mediatek,mt7623-wdt", "mediatek,mt6589-wdt": for MT7623
-	"mediatek,mt7629-wdt", "mediatek,mt6589-wdt": for MT7629
-	"mediatek,mt7986-wdt", "mediatek,mt6589-wdt": for MT7986
-	"mediatek,mt8183-wdt": for MT8183
-	"mediatek,mt8186-wdt", "mediatek,mt6589-wdt": for MT8186
-	"mediatek,mt8516-wdt", "mediatek,mt6589-wdt": for MT8516
-	"mediatek,mt8192-wdt": for MT8192
-	"mediatek,mt8195-wdt", "mediatek,mt6589-wdt": for MT8195
-
-- reg : Specifies base physical address and size of the registers.
-
-Optional properties:
-- mediatek,disable-extrst: disable send output reset signal
-- interrupts: Watchdog pre-timeout (bark) interrupt.
-- timeout-sec: contains the watchdog timeout in seconds.
-- #reset-cells: Should be 1.
-
-Example:
-
-watchdog: watchdog@...07000 {
-	compatible = "mediatek,mt8183-wdt",
-		     "mediatek,mt6589-wdt";
-	mediatek,disable-extrst;
-	reg = <0 0x10007000 0 0x100>;
-	interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>;
-	timeout-sec = <10>;
-	#reset-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mtk-wdt.yaml
new file mode 100644
index 000000000000..5788617027c8
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/mtk-wdt.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/mtk-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek SoCs Watchdog timer
+
+maintainers:
+  - Runyang Chen <runyang.chen@...iatek.com>
+  - Allen-KH Cheng <allen-kh.cheng@...iatek.com>
+
+description: |+
+  The watchdog supports a pre-timeout interrupt that fires timeout-sec/2
+  before the expiry.
+
+allOf:
+  - $ref: "watchdog.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - const: mediatek,mt2712-wdt
+      - const: mediatek,mt6589-wdt
+      - const: mediatek,mt8183-wdt
+      - const: mediatek,mt8192-wdt
+
+      - items:
+          - enum:
+              - mediatek,mt2701-wdt
+              - mediatek,mt6582-wdt
+              - mediatek,mt6797-wdt
+              - mediatek,mt7622-wdt
+              - mediatek,mt7623-wdt
+              - mediatek,mt7629-wdt
+              - mediatek,mt7986-wdt
+              - mediatek,mt8173-wdt
+              - mediatek,mt8183-wdt
+              - mediatek,mt8186-wdt
+              - mediatek,mt8192-wdt
+              - mediatek,mt8195-wdt
+              - mediatek,mt8516-wdt
+          - const: mediatek,mt6589-wdt
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  '#reset-cells':
+    const: 1
+
+  timeout-sec: true
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    watchdog@...07000 {
+        compatible = "mediatek,mt8183-wdt",
+                     "mediatek,mt6589-wdt";
+        mediatek,disable-extrst;
+        reg = <0x10007000 0x100>;
+        interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>;
+        timeout-sec = <10>;
+        #reset-cells = <1>;
+    };
+
+...
-- 
2.18.0