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Message-ID: <20250407160318.936142-2-daniel.lezcano@linaro.org>
Date: Mon, 7 Apr 2025 18:03:16 +0200
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: wim@...ux-watchdog.org
Cc: linux@...ck-us.net,
linux-watchdog@...r.kernel.org,
linux-kernel@...r.kernel.org,
S32@....com,
ghennadi.procopciuc@....com,
thomas.fossati@...aro.org,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org,
devicetree@...r.kernel.org
Subject: [PATCH v3 1/2] dt-bindings: watchdog: Add NXP Software Watchdog Timer
Describe the Software Watchdog Timer available on the S32G platforms.
Cc: Ghennadi Procopciuc <ghennadi.procopciuc@....com>
Cc: Thomas Fossati <thomas.fossati@...aro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
---
.../bindings/watchdog/nxp,s32g2-swt.yaml | 56 +++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/nxp,s32g2-swt.yaml
diff --git a/Documentation/devicetree/bindings/watchdog/nxp,s32g2-swt.yaml b/Documentation/devicetree/bindings/watchdog/nxp,s32g2-swt.yaml
new file mode 100644
index 000000000000..48ba9e9979ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/nxp,s32g2-swt.yaml
@@ -0,0 +1,56 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/nxp,s32g2-swt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP Software Watchdog Timer (SWT)
+
+maintainers:
+ - Daniel Lezcano <daniel.lezcano@...nel.org>
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ oneOf:
+ - const: nxp,s32g2-swt
+ - items:
+ - const: nxp,s32g3-swt
+ - const: nxp,s32g2-swt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Counter clock
+ - description: Module clock
+ - description: Register clock
+ minItems: 1
+
+ clock-names:
+ items:
+ - const: counter
+ - const: module
+ - const: register
+ minItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ watchdog@...00000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x40100000 0x1000>;
+ clocks = <&clks 0x3a>, <&clks 0x3b>;
+ clock-names = "counter", "module";
+ timeout-sec = <10>;
+ };
--
2.43.0
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