From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8636117BED0; Sat, 17 Oct 2026 17:37:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792258655; cv=none; b=qcYZr8LagTR0b54jF5t55ylo6gbUFw1dQWyPPiycz/kSfbixlqVHOiR+TV+ASyWWQOs97A5hdfSuU1DPRSA8vR0tkG3N18Eda2+WJnETgEKOGnp01xqnDP2q/zNoryk9SQugHLLLGGgO9qKgEABR4gPUSETfOTErO4E0H6LiBHo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792258655; c=relaxed/simple; bh=xsAM52aO8oCfFmEQVHl1+Nqf2uFQbTYQrEoP7LKZYUA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=bSOmW2eUKV3wsxDVuOqKFJHi3iY3+8CkfxJbm7L4H9gJeIX0OED8i+RAX/11ce2FJcQxDRynyhcbNOh1onKiwr39zmZvW2EQrpDxiWL3roZB8S1ToADH3y27uV0xpvU40UOI9oeWIooSFl2+iuD0asfvsMygJFd/8zkdbe+9iTk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=f/67l5lJ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="f/67l5lJ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E5B1B1F000C6; Sat, 17 Oct 2026 17:37:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792258654; bh=xsAM52aO8oCfFmEQVHl1+Nqf2uFQbTYQrEoP7LKZYUA=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=f/67l5lJScZBdZQiIzjyjmalHk+M5GsSWPwIZmSKpiKUPq3m1/ovyym+qYJSeZWiP GZacy7h5dsOmsk4C7o+RLtEKg9fHn6fvbl6FwDLtb9qyt4Tu+q7xbazzDNi2kRWFqz LT3SqQYBmKkN+uWZhMx9zyIu32OGz+2WMNQlAs+BIA2FhYM7vRGcRsz3LCNnCA2Oy6 JfhLZB0rha230U2rAGmr35uI6XeabWu8FA5xXCLd5fxz0/p823n4wcY9KZTyDzpzlr 17vx/6XL6IJ6ldSuHK+KV42IRh/XNG6m9x63f7n5B5Lj7v/U+eD68AAfLG95RmQcWY vJAnf9mRujfIA== Message-ID: <64a1cbc4-1379-4dd3-a583-aaf09680d883@kernel.org> Date: Sat, 17 Oct 2026 19:37:27 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 7/8] arm64: dts: rockchip: use two phy cells for the rk3588 mipi dcphys To: Jason Yang , Vinod Koul , Neil Armstrong , Manivannan Sadhasivam , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Heiko Stuebner , Guochun Huang , Philipp Zabel Cc: Michael Riesch , Sebastian Reichel , Bryan O'Donoghue , linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org References: <20261016-dcphy-rx-v1-v5-0-e63b49eabe2d@gmail.com> <20261016-dcphy-rx-v1-v5-7-e63b49eabe2d@gmail.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 16/10/2026 10:56, Jason Yang wrote: > The MIPI DC-PHY binding takes a second cell that selects the transmitter > or the receiver. Switch mipidcphy0 and mipidcphy1 to two cells and let > dsi0 and dsi1 select the transmitter. This breaks existing/older users of this DTS, because old kernel will not accept it. It also creates dependency on the drivers which is NOWHERE explained as merging constraint in cover letter. If you are silent about this, how maintainers can make proper call? Your cover letter AND THIS PATCH must be very explicit about all constraints. Best regards, Krzysztof