linux-kernel - [PATCH v4] dt-bindings: watchdog: convert faraday,ftwdt010 to yaml

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Message-Id: <20220211115528.3382374-1-clabbe@baylibre.com>
Date:   Fri, 11 Feb 2022 11:55:28 +0000
From:   Corentin Labbe <clabbe@...libre.com>
To:     krzysztof.kozlowski@...onical.com, linux@...ck-us.net,
        robh+dt@...nel.org, wim@...ux-watchdog.org
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-watchdog@...r.kernel.org,
        Corentin Labbe <clabbe@...libre.com>,
        Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH v4] dt-bindings: watchdog: convert faraday,ftwdt010 to yaml

Converts watchdog/faraday,ftwdt010.txt to yaml.
This permits to detect missing properties like clocks and resets or
compatible like moxa,moxart-watchdog.

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Signed-off-by: Corentin Labbe <clabbe@...libre.com>
---
Changes since v1:
- Added myself as maintainer as requested by Linus
- Added $ref to watchdog.yaml
- Removed useless quotes
- Added blank lines between properties
- Removed timeout-secs as already provided by watchdog.yaml

Change since v2:
- rewrite compatible section

Changes since v3:
- Fix indent errors reported by yamllint
- Change additionalProperties to unevaluatedProperties
- Added timeout-secs in example

 .../bindings/watchdog/faraday,ftwdt010.txt    | 22 ------
 .../bindings/watchdog/faraday,ftwdt010.yaml   | 67 +++++++++++++++++++
 2 files changed, 67 insertions(+), 22 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
deleted file mode 100644
index 9ecdb502e605..000000000000
--- a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.txt
+++ /dev/null
@@ -1,22 +0,0 @@
-Faraday Technology FTWDT010 watchdog
-
-This is an IP part from Faraday Technology found in the Gemini
-SoCs and others.
-
-Required properties:
-- compatible : must be one of
-  "faraday,ftwdt010"
-  "cortina,gemini-watchdog", "faraday,ftwdt010"
-- reg : shall contain base register location and length
-- interrupts : shall contain the interrupt for the watchdog
-
-Optional properties:
-- timeout-sec : the default watchdog timeout in seconds.
-
-Example:
-
-watchdog@...00000 {
-	compatible = "faraday,ftwdt010";
-	reg = <0x41000000 0x1000>;
-	interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
-};
diff --git a/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
new file mode 100644
index 000000000000..ca9e1beff76b
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/faraday,ftwdt010.yaml
@@ -0,0 +1,67 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/faraday,ftwdt010.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Faraday Technology FTWDT010 watchdog
+
+maintainers:
+  - Linus Walleij <linus.walleij@...aro.org>
+  - Corentin Labbe <clabbe@...libre.com>
+
+description: |
+  This is an IP part from Faraday Technology found in the Gemini
+  SoCs and others.
+
+allOf:
+  - $ref: "watchdog.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - const: faraday,ftwdt010
+      - items:
+          - enum:
+              - cortina,gemini-watchdog
+              - moxa,moxart-watchdog
+          - const: faraday,ftwdt010
+
+  reg:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: PCLK
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    watchdog@...00000 {
+      compatible = "faraday,ftwdt010";
+      reg = <0x41000000 0x1000>;
+      interrupts = <3 IRQ_TYPE_LEVEL_HIGH>;
+      timeout-secs = <5>;
+    };
+  - |
+    watchdog: watchdog@...00000 {
+      compatible = "moxa,moxart-watchdog", "faraday,ftwdt010";
+      reg = <0x98500000 0x10>;
+      clocks = <&clk_apb>;
+      clock-names = "PCLK";
+    };
+...
-- 
2.34.1