linux-kernel - [PATCH 1/2 v2] dt-bindings: watchdog: marvell octeonTX2 GTI system watchdog driver

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Message-ID: <20230419120635.3736-1-bbhushan2@marvell.com>
Date:   Wed, 19 Apr 2023 17:36:34 +0530
From:   Bharat Bhushan <bbhushan2@...vell.com>
To:     <wim@...ux-watchdog.org>, <linux@...ck-us.net>,
        <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <linux-watchdog@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <sgoutham@...vell.com>
CC:     Bharat Bhushan <bbhushan2@...vell.com>
Subject: [PATCH 1/2 v2] dt-bindings: watchdog: marvell octeonTX2 GTI system watchdog driver

Add binding documentation for the Marvell octeonTX2
GTI system watchdog driver.

Signed-off-by: Bharat Bhushan <bbhushan2@...vell.com>
---
v2:
 - compatible changed from marvell-octeontx2-wdt to marvell,octeontx2-wdt
 - corrected type atchdog to watchdog 
 - Replaced hardcoding to use IRQ_TYPE_EDGE_RISING flag

 .../watchdog/marvell,octeontx2-wdt.yaml       | 46 +++++++++++++++++++
 1 file changed, 46 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/marvell,octeontx2-wdt.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/marvell,octeontx2-wdt.yaml b/Documentation/devicetree/bindings/watchdog/marvell,octeontx2-wdt.yaml
new file mode 100644
index 000000000000..96a979c4082d
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/marvell,octeontx2-wdt.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/marvell,octeontx2-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell OcteonTX2 GTI system watchdog
+
+allOf:
+  - $ref: watchdog.yaml#
+
+maintainers:
+  - Bharat Bhushan <bbhushan2@...vell.com>
+
+properties:
+  compatible:
+    const: marvell,octeontx2-wdt
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        watchdog@...000040000 {
+          compatible = "marvell,octeontx2-wdt";
+          reg = <0x00008020 0x00040000 0x00000000 0x00020000>;
+          interrupts = <0 38 IRQ_TYPE_EDGE_RISING>;
+        };
+    };
+
+...
-- 
2.17.1