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 1D7F050EBFE; Tue, 29 Sep 2026 13:35:55 +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=1790688957; cv=none; b=ifJq0lEBieA+zD+QhRt8Sn59L/zLb/GhdKl2M/GgYmwv4REWHrEGIePVBkloWOkiDzcDF543ReNuDR1etipE5wo7rHAXAs1FFI54BaSMZ/W6dXPj6tlOk+WqS07qn/ugRgi6GbR8IKctJLE/fgpGiH8X7z1ExYiRqc6cONZwsDE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790688957; c=relaxed/simple; bh=/6lSb3CpeLl7SwGfTsg4YHsaXjtvjbZO91QqGbf4VSc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=UgrkIWghct5g1NiLZ53kDGQmk6AJCcsIYjJcQidFxHZPfAqs0BiiDqJOcsmdhnjtEwnXWYks/d2nMolK32aYb0QwggBOexXzkEwxKqgJhtI+TRV0JXJfeKvzhBo0ar3K05VyWTT/9rEaMguvwzKUM0sQt/67Q3+U/SArFC/sDQA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=MEpyx26A; 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="MEpyx26A" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8A4031F000FF; Tue, 29 Sep 2026 13:35:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790688955; bh=Rj7aC/lleh8azgssOlkAV+winU+3efLg2rqC9Qnh824=; h=Date:Subject:To:Cc:References:From:In-Reply-To; b=MEpyx26A6lPZETrDGEk/3KWIWp4QM6mzmtVfpoWQJVeQYHJKAnzSzfLoPLofCCWUF KkfldSdHdOm9qzjCVH5G2CwkqckQX0B6VPL+nmjlSHvRuk/SQpoZyeCYTc3Y4G2BGr gLxIpkhVvNcQ0qqWuIytOO1mEfv5MKRGs7VIL99AE54C8fkAQ33ZZFaCOYEvTNF2ca vlPZqtss8Jkz8W5vS5RhMrsU+SQFNNPentS5WIzOp/hURmE0lF0AH+FcoTAIN8GzAL YD8mPqHJXTbwWzjJv0FMLYzFUhwK1IYC/3DBqf/+RH05R6y7VG3+4ofZQ0bb9w8m3K rtTjBSJTKaZFQ== Message-ID: <668e83d0-a017-4f59-bc76-bf6c9a80b5ba@kernel.org> Date: Tue, 29 Sep 2026 15:35:45 +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 v5 5/6] dt-bindings: display: Add Synaptics R63455 panel support To: Linus Walleij Cc: Jun Nie , Rob Clark , Dmitry Baryshkov , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org References: <20260727-sm8650-7-1-bonded-dsi-v5-0-c042266b9eeb@linaro.org> <20260727-sm8650-7-1-bonded-dsi-v5-5-c042266b9eeb@linaro.org> <20260727-spotted-winged-mantis-7aa1ce@quoll> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 8bit On 29/09/2026 14:54, Linus Walleij wrote: > On Mon, Jul 27, 2026 at 10:29 PM Krzysztof Kozlowski wrote: >> On Mon, Jul 27, 2026 at 04:08:44PM +0800, Jun Nie wrote: > >>> + reset-gpios: >>> + maxItems: 2 >>> + description: 2 reset pins for 2 physical panels >> >> Won't work. gpio-consumer-common expects only one reset line. You need >> two separate properties. > > Hm that is a big confusion for the head. > > reset-gpios is by it's very nature plural, because we structured So GPIOs are plural, but not reset-gpios. Just like shutdown-gpios. If you have two pins to turn off one device, how does it work? Maybe you have simple two devices? > all GPIOs like that, exactly in order to indicate that they can be > arrays. :/ Yes, in many cases. > > I think it's appropriate to patch gpio-consumer-common to accept >> 1 gpios, in a separate patch, can even be sent outside > of this series. > > Unless the DT maintainers have some good reason to slap my > hands for that suggestion... Make a case, can be an exception in gpio-consumer-common. But if you have two panels, why can't it go to the graph for each of them? This entire binding seems like stitching two devices together, which might be fine (I don't even remember this stuff... two months old) or might be artificial grouping of separate devices. Best regards, Krzysztof