From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C47E606A31B for ; Mon, 26 Oct 2026 11:43:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=oRshFQmw; dkim=pass (2048-bit key, unprotected) header.d=sntech.de header.i=@sntech.de header.a=rsa-sha256 header.s=gloria202408 header.b=ZZxz8X7m DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:References:In-Reply-To:Message-ID:Date :Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Unsubscribe-Post:List-Owner; bh=TB6sn/UOQnuPOej6SF5d8mgi4GN0S1GI9A7uaPPzJd0=; b=oRshFQmwft3nFSRsEMAW6phsGZ R7ugnJ0RhOJelt0UalcodqRlYj4G/yq6/a1P+6LMlrudL/HIG8ES6YRbJiv0vpvDO7GXaatceGZLl fXrT+/dupWGXfmw88qcYZeX+6lke3dSejtgMqBvCrqoqUxuBvcS9rxyM+sKMGjjgDrQJvgpjNV2GD tXP5oMChFf/PUwID+lY4jGgk9NqpmS1L/Sa0I4eOvqZQfAX0oGh8gjhMyyx4IXc+9YFyNJACZCN6G /NmrWUDVeVpjLV/gFtpwJsvxO5c1pMF9eeuU6tliI0uLrXewoTv+o3+Tg76JYp45+210g8cMgSTD8 tHbl4bxA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLJ6x-00000002P9S-1XIV; Mon, 26 Oct 2026 11:43:31 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.100.1 #2 (Red Hat Linux)) id 1xLJ6u-00000002P8z-3Z3i; Mon, 26 Oct 2026 11:43:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sntech.de; s=gloria202408; h=Content-Type:Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Reply-To; bh=TB6sn/UOQnuPOej6SF5d8mgi4GN0S1GI9A7uaPPzJd0=; b=ZZxz8X7mWMciMHa4hyHB52VP/p c7Z2OE3CazrXaOpP3QXj4JYBeDF9Aj3nBpgoTPFqI8La/mnJUfTTO2m3pJ3nUukBWjOR5WBwZyK9A 8nTkwpWzyHViZVhL7klpnuNq5ioBiyugDndsBriPlzPOWUBbMGw8NGM6CxZzDllbhA79EPPFawVt1 OU3M/+S4n1pNyIZFCe+uxV5Hu5UHkeRy0Gv5k6D6N8Vm2ihWdBV7Y+DTIIqbFZPQ51W23byZEhVuf cDwrSKNSCI3sTvc6g4C9QOdX4J72++KS7Lnt+NlJr4KpPwZckGP5qtHCG2ASkK9tSNVrLI9nG530q kRCdbvGg==; From: Heiko Stuebner To: krzk@kernel.org, Jianfeng Liu Cc: HystericalDragons@proton.me, amadeus@jmu.edu.cn, conor+dt@kernel.org, devicetree@vger.kernel.org, hrushirajg23@gmail.com, krzk+dt@kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, liujianfeng1994@gmail.com, macromorgan@hotmail.com, michael.opdenacker@rootcommit.com, naoki@radxa.com, robh@kernel.org Subject: Re: [PATCH 1/3] dt-bindings: arm: rockchip: Add ArmSoM Sige7s Date: Mon, 26 Oct 2026 12:43:10 +0100 Message-ID: <5520293.6fTUFtlzNn@phil> In-Reply-To: <20261026075915.203854-1-liujianfeng1994@gmail.com> References: <20261026-luminous-traditional-gazelle-0e3bb3@quoll> <20261026075915.203854-1-liujianfeng1994@gmail.com> X-Archived-By: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261026_044328_906999_4395630A X-CRM114-Status: GOOD ( 12.43 ) X-Spam-Score: -2.1 (--) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-6.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 Am Montag, 26. Oktober 2026, 08:59:14 Mitteleurop=C3=A4ische Normalzeit sch= rieb Jianfeng Liu: > Hi Krzysztof, >=20 > On 2026-10-26 7:08 UTC, Krzysztof Kozlowski wrote: > >> The ArmSoM Sige7s is an RK3588S-based single-board computer which > >> shares its hardware design with the CoolPi 4B. > > > >How different devices from different vendors can share design? > > > > > >What is exactly is shared and how did you verify that? >=20 > I confirmed this with ArmSoM. They purchased the original CoolPi 4B > hardware design from CoolPi and confirmed that no hardware design > modifications were made for the Sige7s. >=20 > So the Sige7s uses the same hardware design as the CoolPi 4B, rather > than being independently designed. if it's the completely same board, just with a different print on the board, why does it need an empty devicetree. When it's completely unchanged, what's speaking against just re-using the original one? Heiko