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 765DF3E1732; Wed, 3 Jun 2026 21:18:13 +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=1780521496; cv=none; b=T3jXf+E35N7GqE9yhniWiT8KccRj2QbW5gxkDu1QfAHN6uF91dhoGiu/af+jNLR5G/oXRgckDK9qUAgtNxCpUZFwNx6JDcOb31smYq5xcpiaUtDUzMuGMmJdgCZuUqPYx+LLnUvdQt21la7qsyEe6sqYkwfSBa/HkpKtdK7LvVI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780521496; c=relaxed/simple; bh=d4FnZkScra1Njhu/sXtIj8/llVE+xp9supH0sK5261w=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=JfDEfWahZ31P7WwlkJGV2YJtCBd1OIERF2FIUhUdFQOrMNu8+KL4QtfWes8Oy/l50ejwMA5Xlx3n/IF8chmdM/+Oh+6lwkCEqSe9wIBSdik78RD1BUE5JRnjJCRU2urDPQ0qIBnVu7914FBE+onM76jTZr8XCNu4KP336zEth8E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Y20P66GU; 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="Y20P66GU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 346891F00893; Wed, 3 Jun 2026 21:18:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780521493; bh=NKDk8M+jHm5Zx5C06+PksqTx8vRqyF2rp+mHw90e3o8=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=Y20P66GUJlWwOW5L7g2Jm6yBzE3RmHXa93hVI1E3mlEGH7fuO7oVHEQnUzx6LPeTZ BwSY2JbC03wIyRnEPDqYaTcL+vcI3KP+L7MJZEo1rFrdEAKclK5XbjaaBrv+I/zIRx q+O2l8MaP8ihLYqNrdWITqAg4AgOKs92EZ6nnfkareWFibztTuAlBQpvmBt3a2kDRF gJ0V8rWueFKsJlK3E0tV+LPl3ApNRF6i3Y3Wv1E9sspon4LaG4nmPRnZvoqER8a9C8 AJzu4eufyi34cPLMmXq6W85nszTOqY+0jR1e2UofeWPOgkX4arXYbxhEdzZUzhxIWQ Ri18ZnBZMCJmQ== Message-ID: <29e8491f-20e8-4082-8943-66bee7e3af1d@kernel.org> Date: Wed, 3 Jun 2026 22:18:09 +0100 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 v8 1/2] dt-bindings: phy: qcom: Add CSI2 C-PHY/DPHY schema To: Vladimir Zapolskiy , Vijay Kumar Tumati , Bryan O'Donoghue , Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260523-x1e-csi2-phy-v8-0-a85668459521@linaro.org> <20260523-x1e-csi2-phy-v8-1-a85668459521@linaro.org> <478df3ed-d4ef-43aa-bb84-e2075798542b@kernel.org> <514cf213-5778-45e1-8d70-d3fe27991fcc@oss.qualcomm.com> <7JNJ4dUNz4ennJ5dkzhfLSuVo72JpfZAbprICPRqlRYnSzVDJw6x3h-1nESd_PK-3us9f1V3qOiLiywsTqP8vQ==@protonmail.internalid> From: Bryan O'Donoghue Content-Language: en-US Autocrypt: addr=bod@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 03/06/2026 21:51, Vladimir Zapolskiy wrote: >> Actually, one more thing, Why isn't TITAN TOP GDSC here?>>>> + > If CSIPHYs are true subdevices under the umbrella CAMSS device and well > described as subnodes, then likely none of power domains are needed to be > repeatedly described in the children device nodes, since this information > can be obtained from the parent device by the driver. > > Technically 'power-domains' property can be safely removed, I believe. The policy is to describe the power-domain dependency fully since DT describes hardware not software architecture. Also for a very practical reason a sub-devices can probe/run asynchronously of the parent device being active so in fact we do need to describe the PDs fully. --- bod