Document watchdog for Airoha EN7581. This SoC implement a simple watchdog that supports a max timeout of 28 seconds. The watchdog ticks on half the BUS clock and require the BUS frequency to be provided. Signed-off-by: Christian Marangi <ansuelsmth@xxxxxxxxx> --- .../bindings/watchdog/airoha,en7581-wdt.yaml | 39 +++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/airoha,en7581-wdt.yaml diff --git a/Documentation/devicetree/bindings/watchdog/airoha,en7581-wdt.yaml b/Documentation/devicetree/bindings/watchdog/airoha,en7581-wdt.yaml new file mode 100644 index 000000000000..47210a5990ee --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/airoha,en7581-wdt.yaml @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/airoha,en7581-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Airoha EN7581 Watchdog Timer + +maintainers: + - Christian Marangi <ansuelsmth@xxxxxxxxx> + +allOf: + - $ref: watchdog.yaml# + +properties: + compatible: + const: airoha,en7581-wdt + + reg: + maxItems: 1 + + clock-frequency: + description: BUS frequency in Hz (timer ticks at half the BUS freq) + const: 300000000 + +required: + - compatible + - reg + - clock-frequency + +unevaluatedProperties: false + +examples: + - | + watchdog@1fbf0100 { + compatible = "airoha,en7581-wdt"; + reg = <0x1fbf0100 0x3c>; + clock-frequency = <300000000>; + }; -- 2.45.2
