From 3115888c9702e095f147883cd1a94511025978ab Mon Sep 17 00:00:00 2001
From: Abel Vesa <abel.vesa@nxp.com>
Date: Thu, 7 Jul 2022 15:50:15 +0300
Subject: dt-bindings: watchdog: Add fsl,scu-wdt yaml file

In order to replace the fsl,scu txt file from bindings/arm/freescale,
we need to split it between the right subsystems. This patch documents
separately the 'watchdog' child node of the SCU main node.

Signed-off-by: Abel Vesa <abel.vesa@nxp.com>
Signed-off-by: Viorel Suman <viorel.suman@nxp.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---
 .../devicetree/bindings/arm/freescale/fsl,scu.txt  | 15 ----------
 .../devicetree/bindings/watchdog/fsl,scu-wdt.yaml  | 34 ++++++++++++++++++++++
 2 files changed, 34 insertions(+), 15 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml

(limited to 'Documentation')

diff --git a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
index 03f927a33281..e1cc72741f1f 100644
--- a/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
+++ b/Documentation/devicetree/bindings/arm/freescale/fsl,scu.txt
@@ -62,16 +62,6 @@ i.MX SCU Client Device Node:
 
 Client nodes are maintained as children of the relevant IMX-SCU device node.
 
-Watchdog bindings based on SCU Message Protocol
-------------------------------------------------------------
-
-Required properties:
-- compatible: should be:
-              "fsl,imx8qxp-sc-wdt"
-              followed by "fsl,imx-sc-wdt";
-Optional properties:
-- timeout-sec: contains the watchdog timeout in seconds.
-
 Example (imx8qxp):
 -------------
 aliases {
@@ -98,11 +88,6 @@ firmware {
 			  &lsio_mu1 1 2
 			  &lsio_mu1 1 3
 			  &lsio_mu1 3 3>;
-
-		watchdog {
-			compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
-			timeout-sec = <60>;
-		};
 	};
 };
 
diff --git a/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml b/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml
new file mode 100644
index 000000000000..f84c45d687d7
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/fsl,scu-wdt.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/fsl,scu-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: i.MX SCU Client Device Node - Watchdog bindings based on SCU Message Protocol
+
+maintainers:
+  - Dong Aisheng <aisheng.dong@nxp.com>
+
+description: i.MX SCU Client Device Node
+  Client nodes are maintained as children of the relevant IMX-SCU device node.
+
+allOf:
+  - $ref: watchdog.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: fsl,imx8qxp-sc-wdt
+      - const: fsl,imx-sc-wdt
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    watchdog {
+        compatible = "fsl,imx8qxp-sc-wdt", "fsl,imx-sc-wdt";
+        timeout-sec = <60>;
+    };
-- 
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