[PATCH v3 1/2] dt-bindings: watchdog: mtk-wdt: Add reset-by-toprgu support

[Guenter Roeck]

On Tue, Jan 17, 2023 at 09:40:22AM +0800, Allen-KH Cheng wrote:
> In some applications, the mtk-wdt requires the TOPRGU (Top Reset
> Generation Unit) to reset timer after system resets. Add optional
> mediatek,reset-by-toprgu property to enable it.
> 
> Signed-off-by: Allen-KH Cheng <allen-kh.cheng at mediatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>
> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski at linaro.org>

Reviewed-by: Guenter Roeck <linux at roeck-us.net>

> ---
>  .../devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml      | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
> index b3605608410c..55b34461df1b 100644
> --- a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
> +++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
> @@ -52,6 +52,12 @@ properties:
>      description: Disable sending output reset signal
>      type: boolean
>  
> +  mediatek,reset-by-toprgu:
> +    description: The Top Reset Generation Unit (TOPRGU) generates reset signals
> +      and distributes them to each IP. If present, the watchdog timer will be
> +      reset by TOPRGU once system resets.
> +    type: boolean
> +
>    '#reset-cells':
>      const: 1
>