linux-kernel - [PATCH v1 12/43] dt-bindings: watchdog: Add Cirrus EP93x

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Date:   Thu,  1 Jun 2023 08:34:03 +0300
From:   Nikita Shubin <nikita.shubin@...uefel.me>
To:     Alexander Sverdlin <alexander.sverdlin@...il.com>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Nikita Shubin <nikita.shubin@...uefel.me>
Cc:     Michael Peters <mpeters@...eddedTS.com>,
        Kris Bahnsen <kris@...eddedTS.com>,
        linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v1 12/43] dt-bindings: watchdog: Add Cirrus EP93x

This adds device tree bindings for the Cirrus Logic EP93xx
watchdog block used in these SoCs.

Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
---

Notes:
    v0 -> v1:
    Krzysztof Kozlowski:
    - replaced maintainers to me and Alexander
    - removed wildcards
    - use fallback compatible and list all possible compatibles
    - dropped label
    - dropped quotes in ref
    - fix ident
    - fixed description

 .../bindings/watchdog/cirrus,ep9301-wdt.yaml  | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/cirrus,ep9301-wdt.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/cirrus,ep9301-wdt.yaml b/Documentation/devicetree/bindings/watchdog/cirrus,ep9301-wdt.yaml
new file mode 100644
index 000000000000..d54595174a12
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/cirrus,ep9301-wdt.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/cirrus,ep9301-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cirrus Logic EP93xx Watchdog Timer
+
+maintainers:
+  - Nikita Shubin <nikita.shubin@...uefel.me>
+  - Alexander Sverdlin <alexander.sverdlin@...il.com>
+
+description:
+  Cirrus Logic EP93xx SoC family has it's own watchdog implementation
+
+allOf:
+  - $ref: watchdog.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-wdt
+      - items:
+          - enum:
+              - cirrus,ep9302-wdt
+              - cirrus,ep9307-wdt
+              - cirrus,ep9312-wdt
+              - cirrus,ep9315-wdt
+          - const: cirrus,ep9301-wdt
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    watchdog@...40000 {
+        compatible = "cirrus,ep9301-wdt";
+        reg = <0x80940000 0x08>;
+    };
+
-- 
2.37.4