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Message-Id: <20210607194022.3095736-1-robh@kernel.org>
Date: Mon, 7 Jun 2021 14:40:22 -0500
From: Rob Herring <robh@...nel.org>
To: Guenter Roeck <linux@...ck-us.net>,
Wim Van Sebroeck <wim@...ux-watchdog.org>
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Fu Wei <fu.wei@...aro.org>, linux-watchdog@...r.kernel.org
Subject: [PATCH] dt-bindings: watchdog: Convert arm,sbsa-gwdt to DT schema
Convert the arm,sbsa-gwdt binding to DT schema format.
Cc: Wim Van Sebroeck <wim@...ux-watchdog.org>
Cc: Guenter Roeck <linux@...ck-us.net>
Cc: Fu Wei <fu.wei@...aro.org>
Cc: linux-watchdog@...r.kernel.org
Signed-off-by: Rob Herring <robh@...nel.org>
---
.../bindings/watchdog/arm,sbsa-gwdt.yaml | 51 +++++++++++++++++++
.../bindings/watchdog/sbsa-gwdt.txt | 31 -----------
2 files changed, 51 insertions(+), 31 deletions(-)
create mode 100644 Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml
delete mode 100644 Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
diff --git a/Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml b/Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml
new file mode 100644
index 000000000000..6bfa46353c4e
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/arm,sbsa-gwdt.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/arm,sbsa-gwdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SBSA (Server Base System Architecture) Generic Watchdog
+
+maintainers:
+ - Fu Wei <fu.wei@...aro.org>
+
+description: |
+ The SBSA Generic Watchdog Timer is used to force a reset of the system after
+ two stages of timeout have elapsed. A detailed definition of the watchdog
+ timer can be found in the ARM document: ARM-DEN-0029 - Server Base System
+ Architecture (SBSA)
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ const: arm,sbsa-gwdt
+
+ reg:
+ items:
+ - description: Watchdog control frame
+ - description: Refresh frame
+
+ interrupts:
+ description: The Watchdog Signal 0 (WS0) SPI (Shared Peripheral Interrupt)
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+
+ watchdog@...40000 {
+ compatible = "arm,sbsa-gwdt";
+ reg = <0x2a440000 0x1000>,
+ <0x2a450000 0x1000>;
+ interrupts = <0 27 4>;
+ timeout-sec = <30>;
+ };
+...
diff --git a/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt b/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
deleted file mode 100644
index 6f2d5f91964d..000000000000
--- a/Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
+++ /dev/null
@@ -1,31 +0,0 @@
-* SBSA (Server Base System Architecture) Generic Watchdog
-
-The SBSA Generic Watchdog Timer is used to force a reset of the system
-after two stages of timeout have elapsed. A detailed definition of the
-watchdog timer can be found in the ARM document: ARM-DEN-0029 - Server
-Base System Architecture (SBSA)
-
-Required properties:
-- compatible: Should at least contain "arm,sbsa-gwdt".
-
-- reg: Each entry specifies the base physical address of a register frame
- and the length of that frame; currently, two frames must be defined,
- in this order:
- 1: Watchdog control frame;
- 2: Refresh frame.
-
-- interrupts: Should contain the Watchdog Signal 0 (WS0) SPI (Shared
- Peripheral Interrupt) number of SBSA Generic Watchdog.
-
-Optional properties
-- timeout-sec: Watchdog timeout values (in seconds).
-
-Example for FVP Foundation Model v8:
-
-watchdog@...40000 {
- compatible = "arm,sbsa-gwdt";
- reg = <0x0 0x2a440000 0 0x1000>,
- <0x0 0x2a450000 0 0x1000>;
- interrupts = <0 27 4>;
- timeout-sec = <30>;
-};
--
2.27.0
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