From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 C3F633C277F; Tue, 5 May 2026 07:26:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777965960; cv=none; b=PvvKdJ4kKmUcBDrGQtJJrs48gL5BV0y7MhhbNhGE+i/ndo+Qkwfa2K8ywfwqC9IEyplff5XwoDZX/Z9Eyrh3ynfK0NMxXAZVu+XgRhKkFDNhV0qwsJRvBcaEnW3hSO8p6g3GfK0YtyubztsG2zvR9BJVRaft3KST8b0huiUWzK8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777965960; c=relaxed/simple; bh=eT41NRcm63yB/JJgaw8p8HD5Cjz0HdP8LLdoIwTe5pM=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=JbikMuK6fiyB8jw2qOqV8GvD/FvbBWHrBtYvOr9CvkYPfZHLCTgPmT65UQTB4NgtECaO0Zv0f5vguqreGYVWtzu1GNFrRuiyOwNpCUmnNDxFh0hsK6KDDY3KkHZ2FLanSbbHHzDkm7G+7gfv6+uuTJ1K9++IhISvNgSFV1VkYoU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JyFG/61B; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JyFG/61B" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3AE4DC2BCB4; Tue, 5 May 2026 07:25:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777965960; bh=eT41NRcm63yB/JJgaw8p8HD5Cjz0HdP8LLdoIwTe5pM=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=JyFG/61BtZCtHU14vyDTaMYQNisg5W4AeWmbJn4OTIUVJIqMRvQfFo++jFJ0FGnAp liiDNMRnnK7v9YFKJxFd+lYimprdo+CRxNvQ2bPctHj5viLVzraf9eJIMizyEJWySI 1b17/X4Xl22HXdll8BdRxLu3gTjcp2IDxueoAU7ku2Ojx58G4GeMMmBNnGo6ErNevD cCvzB+6lbTKZ6BIPz3i4OvplRFgV0YBiyuJ0p9IGD1m1b5n1Uuvbu6LgOrrQHL3DZ4 Kje4H1GPiX/bDGaSxaK8ozDo8MmCvRyNzXmHh6KU2ks/lh8lTiyQUimFifty/d7Dzc wPrunx2phVhBg== Message-ID: Date: Tue, 5 May 2026 09:25:54 +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 1/4] dt-bindings: display: panel: Add Novatek NT37705 To: Luca Weiss , Conor Dooley Cc: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Bjorn Andersson , Konrad Dybcio , ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org References: <20260501-fp6-panel-v1-0-e09cb05651cc@fairphone.com> <20260501-fp6-panel-v1-1-e09cb05651cc@fairphone.com> <20260501-yogurt-wise-2a2884e3ec59@spud> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 05/05/2026 08:40, Luca Weiss wrote: >>>>> + compatible: >>>>> + contains: >>>>> + const: boe,bj631jhm-t71-d900 >>>> >>>> Compatible doesn't match the filename, nor does the commit message match >>>> what you've got here. Sounds like you're missing a fallback to >>>> $filename. >>> >>> The last times I was upstreaming panel drivers (Feb 2024 and June 2025), >>> this was the requested way of doing things. >> >> So this was requested that time and is requested now. What is here >> uncertain? >> >>> >>> Compatible being the company and model number making the actual panel >>> assembly (driver IC + touchscreen + glass etc), while the rest being >>> named after the driver IC manufacturer & number. >> >> So exactly what was asked for... > > I don't quite understand what is asked for now, that's my issue. > > 1. Change the filename to boe,bj631jhm-t71-d900.yaml and leave the rest > as-is. > > 2. Add a fallback compatible for novatek,nt37705. IIRC last time it was > argued that a "generic" nt37705 driver will never be correct for a > specific panel since it's missing a bunch of panel-specific init. So > that's why there should not be a fallback to nt37705. To my limited knowledge the (2) with fallback describing the specific IC is preferred, because that compatible although not currently usable is still specific and describes actual IC used. I imagine that such fallback still could be useful to some SW implementation to determine the IC and act based on that. If you have sources of other preference, please share, but I just gave same review to Neil for his ayaneo,wt0600-2k panels. Best regards, Krzysztof