linux-kernel - Re: [PATCH v4 1/5] dt-bindings: watchdog: mt7621-wdt: add phandle to access system controller registers

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Date:   Sat, 11 Feb 2023 12:10:29 +0300
From:   Arınç ÜNAL <arinc.unal@...nc9.com>
To:     Sergio Paracuellos <sergio.paracuellos@...il.com>,
        linux-watchdog@...r.kernel.org
Cc:     wim@...ux-watchdog.org, linux@...ck-us.net, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, matthias.bgg@...il.com,
        tsbogend@...ha.franken.de, p.zabel@...gutronix.de,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-mips@...r.kernel.org
Subject: Re: [PATCH v4 1/5] dt-bindings: watchdog: mt7621-wdt: add phandle to
 access system controller registers

Is this mediatek,sysctl property required after your changes on the 
watchdog code?

Arınç

On 11.02.2023 10:33, Sergio Paracuellos wrote:
> MT7621 SoC provides a system controller node for accessing to some registers.
> Add a phandle in this node to avoid using MIPS related arch operations and
> includes in watchdog driver code.
> 
> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
> ---
>   .../devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml  | 7 +++++++
>   1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
> index b2b17fdf4..a668d0c2f 100644
> --- a/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
> +++ b/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
> @@ -19,6 +19,12 @@ properties:
>     reg:
>       maxItems: 1
>   
> +  mediatek,sysctl:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      phandle to system controller 'sysc' syscon node which
> +      controls system registers
> +
>   required:
>     - compatible
>     - reg
> @@ -30,4 +36,5 @@ examples:
>       watchdog@100 {
>         compatible = "mediatek,mt7621-wdt";
>         reg = <0x100 0x100>;
> +      mediatek,sysctl = <&sysc>;
>       };