linux-kernel - [PATCH v3 2/2] dt-bindings: watchdog: ti,davinci-wdt: convert to dtschema

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Message-ID: <20240726150537.6873-3-five231003@gmail.com>
Date: Fri, 26 Jul 2024 20:27:50 +0530
From: Kousik Sanagavarapu <five231003@...il.com>
To: Daniel Lezcano <daniel.lezcano@...aro.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Wim Van Sebroeck <wim@...ux-watchdog.org>,
	Guenter Roeck <linux@...ck-us.net>
Cc: devicetree@...r.kernel.org,
	linux-watchdog@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Kousik Sanagavarapu <five231003@...il.com>
Subject: [PATCH v3 2/2] dt-bindings: watchdog: ti,davinci-wdt: convert to dtschema

Convert txt bindings of TI's DaVinci/Keystone Watchdog Timer Controller
to dtschema to allow for validation.

While at it,

- Change the order of the compatibles.
- Add "power-domains", which is a phandle to the associated power
  domain.

w.r.t. to the txt binding to stay in sync with existing DTS.

Signed-off-by: Kousik Sanagavarapu <five231003@...il.com>
---
 .../bindings/watchdog/davinci-wdt.txt         | 24 --------
 .../bindings/watchdog/ti,davinci-wdt.yaml     | 55 +++++++++++++++++++
 2 files changed, 55 insertions(+), 24 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
deleted file mode 100644
index aa10b8ec36e2..000000000000
--- a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Texas Instruments DaVinci/Keystone Watchdog Timer (WDT) Controller
-
-Required properties:
-- compatible : Should be "ti,davinci-wdt", "ti,keystone-wdt"
-- reg : Should contain WDT registers location and length
-
-Optional properties:
-- timeout-sec : Contains the watchdog timeout in seconds
-- clocks : the clock feeding the watchdog timer.
-	   Needed if platform uses clocks.
-	   See clock-bindings.txt
-
-Documentation:
-Davinci DM646x - https://www.ti.com/lit/ug/spruer5b/spruer5b.pdf
-Keystone - https://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
-
-Examples:
-
-wdt: wdt@...0000 {
-	compatible = "ti,davinci-wdt";
-	reg = <0x02320000 0x80>;
-	timeout-sec = <30>;
-	clocks = <&clkwdtimer0>;
-};
diff --git a/Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml b/Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml
new file mode 100644
index 000000000000..3c78f60f5f48
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/ti,davinci-wdt.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/ti,davinci-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TI DaVinci/Keystone Watchdog Timer Controller
+
+maintainers:
+  - Kousik Sanagavarapu <five231003@...il.com>
+
+description: |
+  TI's Watchdog Timer Controller for DaVinci and Keystone Processors.
+
+  Datasheets
+
+    Davinci DM646x - https://www.ti.com/lit/ug/spruer5b/spruer5b.pdf
+    Keystone - https://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
+
+allOf:
+  - $ref: watchdog.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: ti,keystone-wdt
+          - const: ti,davinci-wdt
+      - items:
+          - const: ti,davinci-wdt
+
+  reg:
+    maxItems: 1
+
+  power-domains:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    wdt: watchdog@...0080 {
+        compatible = "ti,keystone-wdt", "ti,davinci-wdt";
+        reg = <0x022f0080 0x80>;
+        clocks = <&clkwdtimer0>;
+    };
+
+...
-- 
2.45.2.827.g557ae147e6.dirty