linux-kernel - Re: [PATCH 2/2] arm64: dts: rockchip: Add devicetree for the FriendlyElec NanoPi R76S

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Message-ID: <d0a3d5d4480eac12ba5e2b15bcbc578f@manjaro.org>
Date: Sat, 27 Sep 2025 15:47:35 +0200
From: Dragan Simic <dsimic@...jaro.org>
To: Diederik de Haas <didi.debian@...ow.org>
Cc: Tianling Shen <cnsztl@...il.com>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>, Jonas Karlman
 <jonas@...boo.se>, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: rockchip: Add devicetree for the
 FriendlyElec NanoPi R76S

Hello Diederik and Tianling,

On 2025-09-27 09:37, Diederik de Haas wrote:
> On Sat Sep 27, 2025 at 3:19 AM CEST, Tianling Shen wrote:
>> On 2025/9/27 0:07, Diederik de Haas wrote:
>>> It is recommended to use the labels in the schematics to define the
>>> pinctl nodes (and thus their references). In quite a lot of cases 
>>> that's
>>> indeed the case, but not for gpio-keys (USER_BUT) or these gpio-leds
>>> pinctls.
>> 
>> I cannot find any specific naming rules from the gpio-keys[1] and
>> gpio-leds[2] bindings, did I miss any update?
>> 
>> I think this naming matches the current practice at least in 
>> rockchip's
>> dt tree.
> 
> There is an unofficial rule/aim:
> https://lore.kernel.org/linux-rockchip/5360173.ktpJ11cQ8Q@diego/
> But granted, there is 'some' inconsistency.
> 
> And used in f.e.
> https://lore.kernel.org/linux-rockchip/20250727144409.327740-4-jonas@kwiboo.se/
> 
> Where you can just copy the pinctrl labels from the dts[i] and paste
> that in the schematic document and you're instantly at the right place.
> Which is the exact purpose of that rule/aim.

Is the schematic actually publicly available?  I tried searching for
it, but found nothing, unfortunately.