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 2AFBD43E9FC; Thu, 17 Sep 2026 08:28:19 +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=1789633711; cv=none; b=n/hWs7gVl0yR6hoLBAnmf4E9lttl/XMdyZeUHL4aafNOMKjUj5kM9f4aKAvCnd/DDTqeKq/SKXPcHx27n6U7rbEy1w8QU0NcQq/PGPCUsao4hdf11x68/hsbGmbImAs7q6WsiBKCbl+bu7angvDJpMssYQdOzR/yEMVaha/cGVE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789633711; c=relaxed/simple; bh=axzHutLE555LSyAWEFBPIRK2YMhLrmL+Z9OeUzrhmCU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=NAt+Bf3jDUCINT2BTNiLQ49dUp/34YCiABEiDvT++z5CccGl3Zx6vkShDZd3SCc3cD+ekSxPB4BWipYlnwrY+wLZw0nhRaqThLm1qmZjZG5/WdfqncpPuWhzydRvfa7VUCQNAm+mFHf0UjNnzzB8WHQzjNbnn+dP2qXj0ZmKm7Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=fGBkD9j7; 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="fGBkD9j7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id BDDE21F000FF; Thu, 17 Sep 2026 08:28:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789633696; bh=HxFSnrfx/wfcdj7ofrIXIYqomqLiNpLmeMH4/OuC+mE=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=fGBkD9j7XUq5bhu/uDYf9Cw0b8K088MfEamtW8RRBf4kk998VA/p5lwYc/RctyikF wXURGyydkFm37zPS/6ri4Da8okQ1hFQAoSL0jmmm2ZwbyyPdM2VXEXpoVrttfPYYli mnYbFg2HC7Ma9E3wOYXM9KK2aOUO36DBgRCImXy0/KLE0CK4iKluTlu+kYBhlPE5r+ 8m9Zg2eYfeW+KEPcrtwetQ+lxvBwbAv74MmbdmfAHeI0fQZ5yXIZ+eA9ASkeZP8nsq rKm+OBTDAnSBr4m4rYYkV7tAheXe25nRa4aon9ArwR+uEFei2jFAjVdEIcoN4UTSoy SopplzRryj9zg== Message-ID: <0e7f6b13-c604-4853-9b9a-c2b4a669dc0e@kernel.org> Date: Thu, 17 Sep 2026 10:28:11 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] dt-bindings: media: i2c: Add vision-components,mipi-module-controller To: Laurent Pinchart Cc: Richard Leitner , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mauro Carvalho Chehab , Alexander Stein , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org References: <20260915-vc-mipi-ctrl-v1-2-8a42b693d889@linux.dev> <20260916-daft-relaxed-mouse-9bfaf4@quoll> <45fd8255-6ba8-4488-acc8-4f7fc9c85ade@kernel.org> <20260916165244.GB191870@killaraus.ideasonboard.com> <3dc63afd-ab21-4e3c-b6da-0fb51584ca9a@kernel.org> <20260917081917.GB21347@killaraus.ideasonboard.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 17/09/2026 10:19, Laurent Pinchart wrote: >>>>> Connector >>>>> || +--------+ >>>>> || <------------ MIPI CSI-2 ------------ | | >>>>> || +-------+ | | >>>>> || <--- I2C ---> | | <--- I2C ---> | Sensor | >>>>> || | FPGA | | | >>>>> || | | --- Clock --> | | >>>>> || +-------+ +--------+ >>>>> ^ >>>>> | >>>>> +-------+ >>>>> | Clock | >>>>> | Osc. | >>>>> +-------+ >>>>> >>>>> The frequency of the external clock oscillator is what the >>>>> clock-frequency models. >> >> ... this sentence confused me. If the oscillator is part of the module, >> then clock-frequency property is applicable or it is implied by the >> compatible. > > Our replies have crossed each other. I should have waited, it would have > saved me time writing a long message :-) > > Yes, the external oscillator is in the module. That's why I initially > proposed using the clock-frequency property. We could still model it as > a separate DT node (see my other e-mail), but I think it brings > complexity for little gain. Yes, I agree. Best regards, Krzysztof