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 757D237A487; Wed, 22 Jul 2026 01:53:17 +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=1784685198; cv=none; b=d+1Flb34n3fFGJyRxZ9TLMUwjIi0aUdQav9OXN+f+30ZYRG0XQ+OGQJpVg/KYqGc2FenOLxrhEHV2fRv3VTueTa/EHup9AqQs9fZ0eBeVDkcXZPMq18TaSY8dgBp6yMUciXutQKGi5gkYnlSdnFIkhxNTt8gGYdxd2MIYiXpBus= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784685198; c=relaxed/simple; bh=FOZtZP26GFYE40ybFPpqCUknUfglcPtidCHhxiY6My0=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=KZecRiFZ1T9cDCh7LUhx6/8b+m4RIApcHa0RN+PeP3P6qh+PumOo1pCUIrRYfGngQMQqpm5CvG9jvuZA/RVR8fZgngZVvmOY/cyYl/EMAB6CXQAb7b8uw70Evogjrdjr0waZPBbkkoT8HuMT7EHVuA4JMScLUitI9S4ThuXm75Q= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=BcIz6ojo; 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="BcIz6ojo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B4DA41F000E9; Wed, 22 Jul 2026 01:53:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784685197; bh=EyvCeadiCpecAtmf/jVCC4DvpHXg9v3w99/kgsifdeI=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=BcIz6ojoMmb0icp91ZJi00hmO2765M0BGAU2ZwJ+ZUBH1BDegspyILtSjFgtPVsqL TSJ6nrHLAScbSf/q74xqC/ZdUpn5AEwa3fRYTlFlHIvgrw0TXz5N0gaAA63U7uNYF6 5+1dQyk7NrFuMzL7q4F/vypzpNwDn5JWfmN12w1HJMWo2hVyyAnc1Syf5M0dVYDeQo GDL4H2iE9gnGwJvNCt9QnvxvjYiNnjk23+uHky2THdbfaLgrud6W/GNRWUCZAhVdXo 8jj+9leb1HQ7JCBaBkfGnjrIJ2XRbmgELT3Tgkrjqur7yqYv77mJIl7/XyZa84hSgQ Xxuwhp468EMOQ== Message-ID: Date: Wed, 22 Jul 2026 02:53:10 +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 v13 1/2] dt-bindings: phy: qcom: Add CSI2 C-PHY/DPHY schema To: Frank Li , Vladimir Zapolskiy Cc: Bryan O'Donoghue , Vinod Koul , Kishon Vijay Abraham I , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , 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, Krzysztof Kozlowski References: <20260720-x1e-csi2-phy-v13-0-160c31958863@linaro.org> <20260720-x1e-csi2-phy-v13-1-160c31958863@linaro.org> From: Bryan O'Donoghue Content-Language: en-GB Autocrypt: addr=bod@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 22/07/2026 02:17, Frank Li wrote: >> Such design has a number of flaws and in general it looks overly >> complicated. From the beginning it's unclear how to distinguish >> a clock lane from a data lane, how to specify lane frequencies etc. > Thanks, but phy-cell support more than one argument. like > > <&phy 0 mode_cphy link_freq> > > I ask these because simiar other phys may connect to display panel, some > phys combine csi and dsi together. For a combined CSI/DSI PHY that's a good model, and it re-establishes the principle that the consumer chooses the mode. For our simpler camera-only case the cell has less work to do. The series carries #phy-cells = 1 per Rob's feedback and an RB from Krzysztof. That's reviewed, tested and mergeable. The one alternative under discussion with Vinod is bus-type in the CSID controller's endpoint with the mode conveyed via phy_configure(). Either way the consumer decides. --- bod