linux-kernel - Re: [PATCH v2 2/3] dt-bindings: pinctrl: sx150xq: allow gpio line naming

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Message-ID: <639d6ab8-688a-437c-adb9-9dea1fbd0c51@kernel.org>
Date: Thu, 31 Oct 2024 19:14:18 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Heiko Schocher <hs@...x.de>, linux-kernel@...r.kernel.org
Cc: Conor Dooley <conor+dt@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Linus Walleij <linus.walleij@...aro.org>,
 Neil Armstrong <neil.armstrong@...aro.org>, Rob Herring <robh@...nel.org>,
 devicetree@...r.kernel.org, linux-gpio@...r.kernel.org
Subject: Re: [PATCH v2 2/3] dt-bindings: pinctrl: sx150xq: allow gpio line
 naming

On 31/10/2024 16:12, Heiko Schocher wrote:
> Adding gpio-line-names property works fine for this
> device node, but dtb check drops warning:
> 
> 'gpio-line-names' does not match any of the regexes: '-cfg$', 'pinctrl-[0-9]+'
> from schema $id: http://devicetree.org/schemas/pinctrl/semtech,sx1501q.yaml#
> 
> Allow to add property gpio-line-names for this devices.
> 
> Signed-off-by: Heiko Schocher <hs@...x.de>
> 
> ---
> checkpatch shows
> WARNING: Prefer a maximum 75 chars per line (possible unwrapped commit description?)
> 'gpio-line-names' does not match any of the regexes: '-cfg$', 'pinctrl-[0-9]+'

No worries, this can be ignored. Warning messages can pass the limit (up
to some point).

> 
> Ignored, as it is a make output, which helps to understand the
> reason for adding this patch.
> 
> Changes in v2:
> patch dt-bindings: pinctrl: sx150xq: allow gpio line naming new in v2
> 
>  .../devicetree/bindings/pinctrl/semtech,sx1501q.yaml          | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml b/Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml
> index 4214d7311f6b..fd0936545bb8 100644
> --- a/Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml
> +++ b/Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml
> @@ -26,6 +26,10 @@ properties:
>    reg:
>      maxItems: 1
>  
> +  gpio-line-names:
> +    minItems: 1

I think gpio-line-names should always match the actual number of GPIOs
for given device. Do you have here devices with 1 gpio? This could be
further constrained in if:then sections.


Best regards,
Krzysztof