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Sat, 27 Sep 2025 06:52:55 -0700 (PDT) Received: from CNSZTL-PC.lan ([2401:b60:5:2::a]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-27ed6adca51sm82134025ad.147.2025.09.27.06.52.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 27 Sep 2025 06:52:55 -0700 (PDT) Message-ID: Date: Sat, 27 Sep 2025 21:52:51 +0800 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/2] arm64: dts: rockchip: Add devicetree for the FriendlyElec NanoPi R76S To: Dragan Simic , Diederik de Haas Cc: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Jonas Karlman , devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org References: <20250922091509.2695565-1-cnsztl@gmail.com> <20250922091509.2695565-2-cnsztl@gmail.com> <1bb00ad6-ffe1-4783-909b-032dfb984180@gmail.com> From: Tianling Shen In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250927_065257_171534_74B780A4 X-CRM114-Status: GOOD ( 15.34 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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@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. 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.