[PATCH 1/2] dt-bindings: watchdog: Convert TS-4800 to DT schema

Eduard Bostina
2026-03-23T08:48:20Z

Convert the Technologic Systems TS-4800 watchdog timer bindings
to DT schema.

Signed-off-by: Eduard Bostina <egbostina@gmail.com>
---
Note:
* This patch is part of the GSoC2026 application process for device tree bindings conversions
* https://github.com/LinuxFoundationGSoC/ProjectIdeas/wiki/GSoC-2026-Device-Tree-Bindings

.../watchdog/technologic,ts4800-wdt.yaml | 46 +++++++++++++++++++
.../bindings/watchdog/ts4800-wdt.txt | 25 ----------
2 files changed, 46 insertions(+), 25 deletions(-)
create mode 100644 Documentation/devicetree/bindings/watchdog/technologic,ts4800-wdt.yaml
delete mode 100644 Documentation/devicetree/bindings/watchdog/ts4800-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/technologic,ts4800-wdt.yaml b/Documentation/devicetree/bindings/watchdog/technologic,ts4800-wdt.yaml
new file mode 100644
index 000000000..cb2066b4b
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/technologic,ts4800-wdt.yaml
@@ -0,0 +1,46 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/technologic,ts4800-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Technologic Systems TS-4800 Watchdog
+
+maintainers:
+ - Eduard Bostina <egbostina@gmail.com>
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ const: technologic,ts4800-wdt
+
+ syscon:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ items:
+ - items:
+ - description: Phandle to the FPGA's syscon
+ - description: Offset to the watchdog register
+ description: Phandle / integers array that points to the syscon node which
+ describes the FPGA's syscon registers.
+
+required:
+ - compatible
+ - syscon
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ syscon: syscon@b0010000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0xb0010000 0x3d>;
+ reg-io-width = <2>;
+
+ watchdog {
+ compatible = "technologic,ts4800-wdt";
+ syscon = <&syscon 0xe>;
+ timeout-sec = <10>;
+ };
+ };
diff --git a/Documentation/devicetree/bindings/watchdog/ts4800-wdt.txt b/Documentation/devicetree/bindings/watchdog/ts4800-wdt.txt
deleted file mode 100644
index 8f6caad42..000000000
--- a/Documentation/devicetree/bindings/watchdog/ts4800-wdt.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Technologic Systems Watchdog
-
-Required properties:
-- compatible: must be "technologic,ts4800-wdt"
-- syscon: phandle / integer array that points to the syscon node which
- describes the FPGA's syscon registers.
- - phandle to FPGA's syscon
- - offset to the watchdog register
-
-Optional property:
-- timeout-sec: contains the watchdog timeout in seconds.
-
-Example:
-
-syscon: syscon@b0010000 {
- compatible = "syscon", "simple-mfd";
- reg = <0xb0010000 0x3d>;
- reg-io-width = <2>;
-
- wdt@e {
- compatible = "technologic,ts4800-wdt";
- syscon = <&syscon 0xe>;
- timeout-sec = <10>;
- };
-}
--
2.53.0