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Message-ID: <20230531052812.2221823-1-srinivas.neeli@amd.com>
Date: Wed, 31 May 2023 10:58:12 +0530
From: Srinivas Neeli <srinivas.neeli@....com>
To: <wim@...ux-watchdog.org>, <linux@...ck-us.net>,
<robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
<srinivas.neeli@....com>
CC: <linux-watchdog@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<radhey.shyam.pandey@....com>, <git@....com>,
<neelisrinivas18@...il.com>, <srinivas.goud@....com>
Subject: [PATCH] dt-bindings: watchdog: cdns,wdt-r1p2: Convert cadence watchdog to yaml
Convert cadence watchdog bindings to DT schema format using json-schema.
Signed-off-by: Srinivas Neeli <srinivas.neeli@....com>
---
.../bindings/watchdog/cadence-wdt.txt | 23 -------
.../bindings/watchdog/cdns,wdt-r1p2.yaml | 62 +++++++++++++++++++
2 files changed, 62 insertions(+), 23 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/watchdog/cadence-wdt.txt
create mode 100644 Documentation/devicetree/bindings/watchdog/cdns,wdt-r1p2.yaml
diff --git a/Documentation/devicetree/bindings/watchdog/cadence-wdt.txt b/Documentation/devicetree/bindings/watchdog/cadence-wdt.txt
deleted file mode 100644
index 750a87657448..000000000000
--- a/Documentation/devicetree/bindings/watchdog/cadence-wdt.txt
+++ /dev/null
@@ -1,23 +0,0 @@
-Zynq Watchdog Device Tree Bindings
--------------------------------------------
-
-Required properties:
-- compatible : Should be "cdns,wdt-r1p2".
-- clocks : This is pclk (APB clock).
-- interrupts : This is wd_irq - watchdog timeout interrupt.
-
-Optional properties
-- reset-on-timeout : If this property exists, then a reset is done
- when watchdog times out.
-- timeout-sec : Watchdog timeout value (in seconds).
-
-Example:
- watchdog@...05000 {
- compatible = "cdns,wdt-r1p2";
- clocks = <&clkc 45>;
- interrupt-parent = <&intc>;
- interrupts = <0 9 1>;
- reg = <0xf8005000 0x1000>;
- reset-on-timeout;
- timeout-sec = <10>;
- };
diff --git a/Documentation/devicetree/bindings/watchdog/cdns,wdt-r1p2.yaml b/Documentation/devicetree/bindings/watchdog/cdns,wdt-r1p2.yaml
new file mode 100644
index 000000000000..3c17c5883bce
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/cdns,wdt-r1p2.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/cdns,wdt-r1p2.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cadence watchdog timer controller
+
+maintainers:
+ - Neeli Srinivas <srinivas.neeli@....com>
+
+description:
+ The cadence watchdog timer is used to detect and recover from
+ system malfunctions. This watchdog contains 24 bit counter and
+ a programmable reset period. The timeout period varies from 1 ms
+ to 30 seconds while using a 100Mhz clock.
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ enum:
+ - cdns,wdt-r1p2
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ reset-on-timeout:
+ type: boolean
+ description: |
+ If this property exists, then a reset is done when watchdog
+ times out.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+ watchdog@...05000 {
+ compatible = "cdns,wdt-r1p2";
+ reg = <0xf8005000 0x1000>;
+ clocks = <&clkc 45>;
+ interrupt-parent = <&intc>;
+ interrupts = <GIC_SPI 9 IRQ_TYPE_EDGE_RISING>;
+ reset-on-timeout;
+ timeout-sec = <10>;
+ };
+...
--
2.25.1
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