[PATCH 1/2] dt-bindings: watchdog: Add Exynos8855 watchdog compatible string

From: Alim Akhtar

Date: Sun Sep 27 2026 - 10:13:19 EST


Add the 'samsung,exynos8855-wdt' compatible string to watchdog DT
binding documentation. The Exynos8855 watchdog nodes use two
clocks (bus clock and source clock), require samsung,cluster-index
and samsung,syscon-phandle properties, similar to Exynos850 watchdog.

Signed-off-by: Alim Akhtar <alim.akhtar@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
index a32c47831577..517c0e1cd78b 100644
--- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
@@ -25,6 +25,7 @@ properties:
- samsung,exynos5515-wdt
- samsung,exynos7-wdt # for Exynos7
- samsung,exynos850-wdt # for Exynos850
+ - samsung,exynos8855-wdt # for Exynos8855
- samsung,exynos990-wdt # for Exynos990
- samsung,exynosautov9-wdt # for Exynosautov9
- samsung,exynosautov920-wdt # for Exynosautov920
@@ -52,13 +53,13 @@ properties:
enum: [0, 1, 2]
description:
Index of CPU cluster on which watchdog is running (in case of Exynos850,
- Exynos990 or Google gs101).
+ Exynos8855, Exynos990 or Google gs101).

samsung,syscon-phandle:
$ref: /schemas/types.yaml#/definitions/phandle
description:
Phandle to the PMU system controller node (in case of Exynos5250,
- Exynos5420, Exynos5515, Exynos7, Exynos850, Exynos990 and gs101).
+ Exynos5420, Exynos5515, Exynos7, Exynos850, Exynos8855 Exynos990 and gs101).

required:
- compatible
@@ -76,6 +77,7 @@ allOf:
enum:
- google,gs101-wdt
- samsung,exynos850-wdt
+ - samsung,exynos8855-wdt
- samsung,exynosautov9-wdt
- samsung,exynosautov920-wdt
then:

base-commit: 4c253ac4b29b8c6cc6fdef8f92d4facde62e63b9
--
2.34.1