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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <ad4a7dda-8f6f-4d2a-84d9-838611f2285f@gmail.com>
Date: Sat, 27 Sep 2025 21:52:51 +0800
From: Tianling Shen <cnsztl@...il.com>
To: Dragan Simic <dsimic@...jaro.org>,
 Diederik de Haas <didi.debian@...ow.org>
Cc: 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

Hi Dragan,

On 2025/9/27 21:47, Dragan Simic wrote:
> 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@...boo.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.

The schematic for NanoPi R76S is available at 
https://wiki.friendlyelec.com/wiki/images/6/60/NanoPi_R76S_LP4X_2411_SCH.pdf

For more information please move to 
https://wiki.friendlyelec.com/wiki/index.php/NanoPi_R76S.

Thanks,
Tianling.