From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D412FE77188 for ; Tue, 14 Jan 2025 10:11:32 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id F2C9110E0D8; Tue, 14 Jan 2025 10:11:31 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.b="bvM+/at8"; dkim-atps=neutral Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id 09F7C10E0D3; Tue, 14 Jan 2025 10:11:31 +0000 (UTC) Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 6E3EA5C5361; Tue, 14 Jan 2025 10:10:49 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id ED2E5C4CEDD; Tue, 14 Jan 2025 10:11:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1736849490; bh=g7e7ADBddTLdHfHRkpWvjc/8lVlJAwlc9WtHLL9u950=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=bvM+/at8SLl/rv8NzoQFYOvJZBhE7D60f9rdI6NcpS8lpHf45XRGir6DcQboH84HI 4xdpq7/HFZz99JRq+XyQVpuKvK2M1/PQyxGD9U9Z5ZIGP/CL8/P2diY3yFEzb14hiR 9ta5mdGMJzJNCrLjm5cYyEtiGcdMr5Ic2XgJgBCCtr57OnBNDJGODFmOmr0bHp0E8S bEE9x5WQw0yByGDAHil0SbjGc0XNnXtB/sjiPCRoZ2qokPQIAZl+PvnWpipnZU6ZEZ VI5/N2EMAhbXll1Ya/kN1dyEh9bur9rokVQ8BK/wqD/IpoqCqDjbipyStYPTrckpvH 00IGYQ/H6vv/w== Message-ID: Date: Tue, 14 Jan 2025 11:11:23 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 3/4] dt-bindings: display/msm: Document MDSS on QCS8300 To: Dmitry Baryshkov Cc: Yongxing Mou , Rob Clark , Abhinav Kumar , Sean Paul , Marijn Suijten , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Neil Armstrong , Kuogee Hsieh , Vinod Koul , Kishon Vijay Abraham I , Bjorn Andersson , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org References: <20250113-mdssdt_qcs8300-v3-0-6c8e93459600@quicinc.com> <20250113-mdssdt_qcs8300-v3-3-6c8e93459600@quicinc.com> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 14/01/2025 11:00, Dmitry Baryshkov wrote: > On Tue, 14 Jan 2025 at 09:57, Krzysztof Kozlowski wrote: >> >> On Mon, Jan 13, 2025 at 04:03:10PM +0800, Yongxing Mou wrote: >>> +patternProperties: >>> + "^display-controller@[0-9a-f]+$": >>> + type: object >>> + additionalProperties: true >>> + >>> + properties: >>> + compatible: >>> + items: >>> + - const: qcom,qcs8300-dpu >>> + - const: qcom,sa8775p-dpu >>> + >>> + "^displayport-controller@[0-9a-f]+$": >>> + type: object >>> + additionalProperties: true >>> + >>> + properties: >>> + compatible: >>> + items: >>> + - const: qcom,qcs8300-dp >>> + - const: qcom,sm8650-dp >> >> Parts of qcs8300 display are compatible with sa8775p, other parts with >> sm8650. That's odd or even not correct. Assuming it is actually correct, >> it deserves explanation in commit msg. > > It seems to be correct. These are two different IP blocks with > different modifications. QCS8300's DP configuration matches the SM8650 > ([1]), though the DPU is the same as the one on the SA8775P platform. > > [1] https://lore.kernel.org/dri-devel/411626da-7563-48fb-ac7c-94f06e73e4b8@quicinc.com/ That's the driver, so you claim that qcs8300, which is a sa8775p, is not compatible with sa8775p because of current driver code? You see the contradiction? sa8775p is not compatible with sa8775p because of current driver patch? I don't think it is correct, but let's repeat: if you think otherwise, this should be explain in commit msg. Best regards, Krzysztof