linux-kernel - Re: [PATCH 1/3] dt-bindings: watchdog: mt7621-wdt: add phandle to access system controller registers

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Message-ID: <a0a141ef-b5ab-f84a-9a77-7b6d1f54ccc9@linaro.org>
Date:   Fri, 10 Feb 2023 11:59:54 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
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,
        arinc.unal@...nc9.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 1/3] dt-bindings: watchdog: mt7621-wdt: add phandle to
 access system controller registers

On 10/02/2023 07:56, Sergio Paracuellos wrote:
> MT7621 SoC provides a system controller node for accessing to some registers.
> Add a phandle to this node to avoid using MIPS related arch operations and

I don't understand this part. You claim you add a phandle to this node,
but your binding suggest you add here a phandle to other node.

> includes in watchdog driver code.
> 
> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
> ---
>  .../bindings/watchdog/mediatek,mt7621-wdt.yaml       | 12 ++++++++++--
>  1 file changed, 10 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
> index b2b17fdf4..3c545065f 100644
> --- a/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
> +++ b/Documentation/devicetree/bindings/watchdog/mediatek,mt7621-wdt.yaml
> @@ -14,11 +14,18 @@ allOf:
>  
>  properties:
>    compatible:
> -    const: mediatek,mt7621-wdt
> +    items:
> +      - const: mediatek,mt7621-wdt
> +      - const: syscon
>  
>    reg:
>      maxItems: 1
>  
> +  ralink,sysctl:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description:
> +      phandle of syscon used to control system registers

This needs to be more specific - which syscon? It also does not fit your
commit msg.


Best regards,
Krzysztof