netdev - Re: [PATCH net-next 1/4] dt-bindings: net: dsa: realtek: describe LED usage

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Date: Thu, 21 Mar 2024 08:56:27 -0300
From: Luiz Angelo Daros de Luca <luizluca@...il.com>
To: Krzysztof Kozlowski <krzk@...nel.org>
Cc: Linus Walleij <linus.walleij@...aro.org>, Alvin Šipraga <alsi@...g-olufsen.dk>, 
	Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com>, 
	Vladimir Oltean <olteanv@...il.com>, "David S. Miller" <davem@...emloft.net>, 
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org
Subject: Re: [PATCH net-next 1/4] dt-bindings: net: dsa: realtek: describe LED usage

Hi Krzysztof

> On 10/03/2024 05:51, Luiz Angelo Daros de Luca wrote:
> > Each port can have up to 4 LEDs (3 for current rtl8365mb devices). The
> > LED reg property will indicate its LED group.
> >
>
> Please use scripts/get_maintainers.pl to get a list of necessary people
> and lists to CC (and consider --no-git-fallback argument). It might
> happen, that command when run on an older kernel, gives you outdated
> entries. Therefore please be sure you base your patches on recent Linux
> kernel.
>
> Tools like b4 or scripts/get_maintainer.pl provide you proper list of
> people, so fix your workflow. Tools might also fail if you work on some
> ancient tree (don't, instead use mainline), work on fork of kernel
> (don't, instead use mainline) or you ignore some maintainers (really
> don't). Just use b4 and everything should be fine, although remember
> about `b4 prep --auto-to-cc` if you added new patches to the patchset.
>
> > An example of LED usage was included in an existing switch example.
> >
> > Cc: devicetree@...r.kernel.org
>
> Please drop the autogenerated scripts/get_maintainer.pl CC-entries from
> commit msg. There is no single need to store automated output of
> get_maintainers.pl in the git log. It can be easily re-created at any
> given time, thus its presence in the git history is redundant and
> obfuscates the log.

It is a left-over before I adopted b4. I'll do the cleanup.

>

> > +patternProperties:
> > +  '^(ethernet-)?ports$':
> > +    type: object
> > +    additionalProperties: true
> > +
> > +    patternProperties:
> > +      '^(ethernet-)?port@[0-6]$':
> > +        type: object
> > +        additionalProperties: true
> > +
> > +        properties:
> > +          leds:
>
> type: object
> additionalProperties: false
>
> > +            description:
> > +              "LEDs associated with this port"
>
> Drop quotes.

At some in my frequent system upgrades (rolling release), it
uninstalled the yamllint

warning: python package 'yamllint' not installed, skipping

It should have catched that before.

>
> > +
> > +            patternProperties:
> > +              '^led@[a-f0-9]+$':
>
> [0-3]

leds are already defined for a port. I'm just trying to add a
restriction to allow only 0-3 leds and use that to identify the group.
These suggestions will redefine the leds property, forcing me to
declare #address-cells, #size-cells for leds and reference the led
schema in led@[0-3]. Is there a way to just add a constraint to what
is already present?

>
> > +                type: object
> > +                additionalProperties: true
>
> This cannot be 'true'. Which then will point you to errors and missing
> ref to leds schema and need to use unevaluatedProperties: false.
>
>
> > +
> > +                properties:
> > +                  reg:
> > +                    description:
> > +                      "reg indicates the LED group for this LED"
>
> Drop quotes
>
>
> Best regards,
> Krzysztof
>