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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A12B2C04AA5 for ; Thu, 25 Aug 2022 06:11:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234145AbiHYGLs (ORCPT ); Thu, 25 Aug 2022 02:11:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50934 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232439AbiHYGLh (ORCPT ); Thu, 25 Aug 2022 02:11:37 -0400 Received: from mail-lf1-x12b.google.com (mail-lf1-x12b.google.com [IPv6:2a00:1450:4864:20::12b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B82A09E2CD for ; Wed, 24 Aug 2022 23:11:36 -0700 (PDT) Received: by mail-lf1-x12b.google.com with SMTP id d23so22524748lfl.13 for ; Wed, 24 Aug 2022 23:11:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc; bh=ummFVBGk0kSJ29azYUV4PMm88NyQ23LzzWJDNGG28Ko=; b=OFtTB6mVUJ7bt1R90wBtz2Y6zQCVFUpiOuFR6YC6KJ3Y15humtnaF40mxEMcSq4Fj3 IeH6p4VgBaGRevW24zfAkORoqg6d9zBGd5onw0wtuYYPkQHJQpswVnr9XfDncaoaTd1p ZK2EXKpA3/xUw6k0OJmc5V7raAnoKDI02lHDche9JSt9hLHI0mUD2+QjMezZtQIwVU/V vqyuT8OcjcO+wXnsvv8i7QvZRwTkspGofiAtPDY4AXFeftS1ZNh3UKQ09+/7rp89BaR2 su15G0IEwNyOs9QPcqpJs8W5d7Vb6KjH4Oj72OaOfYFKNcVNOvf21ELAEMX/URcT2Fow sYwQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc; bh=ummFVBGk0kSJ29azYUV4PMm88NyQ23LzzWJDNGG28Ko=; b=3wek9uK5Gg4HUpp7NuAWOU+KW4zbqVxFAE0GmyuI1FSXHNxgJotdAvS80eH+/+eWh4 Po8HM7iflzQGBtJoZIoBE3i48F+2WCHswS+nWeHXv/x5zWGRKCm0/zEhG2iO0TmRE3LQ 4Lzyy6WCCOSYI1Ibuc/KIrbwE0vS37mP7CmsXRe3fFNOypiSqZLyyynLx4CeuJJyBNKU 22iEKor9lEBLVKmW2wpEdzScwmo3RW+N2a4vYNATgb8oo8hho3aWWLj8fJQrsEmb7E7d +YTTgLmVCPiiodRmesj6NrkbW+2ITFfm1NK6Lgh7WaQrTWZw83YEd+VOzcese2Ro6Lzy AI7Q== X-Gm-Message-State: ACgBeo2SgFimz0RARENyGsY05vFH8Niy7Uual9DDc+3QbmDUe9yMZfFT FOoU5oqSdBgvAyy/1jf+MJfhcw== X-Google-Smtp-Source: AA6agR4niBBOUXc8ecge5sCF13gIkJ6mIJGsa30laM0Wak9E8xVD2qZSPleZA9pDzcn970EDeqF0YQ== X-Received: by 2002:a05:6512:220e:b0:492:db7f:e0b3 with SMTP id h14-20020a056512220e00b00492db7fe0b3mr618143lfu.142.1661407895137; Wed, 24 Aug 2022 23:11:35 -0700 (PDT) Received: from [192.168.0.71] (82.131.98.15.cable.starman.ee. [82.131.98.15]) by smtp.gmail.com with ESMTPSA id t19-20020a195f13000000b004896ed8dce3sm325213lfb.2.2022.08.24.23.11.33 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 24 Aug 2022 23:11:34 -0700 (PDT) Message-ID: <3ff08ae9-a4b6-2b74-23cb-69ea1d7e1033@linaro.org> Date: Thu, 25 Aug 2022 09:11:33 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.12.0 Subject: Re: [PATCH] dt-bindings: arm: mediatek: mmsys: change compatible for MT8195 Content-Language: en-US To: Bo-Chen Chen , robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com Cc: jason-jh.lin@mediatek.com, nancy.lin@mediatek.com, ck.hu@mediatek.com, chunkuang.hu@kernel.org, angelogioacchino.delregno@collabora.com, hsinyi@google.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Project_Global_Chrome_Upstream_Group@mediatek.com References: <20220825055658.12429-1-rex-bc.chen@mediatek.com> From: Krzysztof Kozlowski In-Reply-To: <20220825055658.12429-1-rex-bc.chen@mediatek.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 25/08/2022 08:56, Bo-Chen Chen wrote: > From: "Jason-JH.Lin" > > For previous MediaTek SoCs, such as MT8173, there are 2 display HW > pipelines binding to 1 mmsys with the same power domain, the same > clock driver and the same mediatek-drm driver. > > For MT8195, VDOSYS0 and VDOSYS1 are 2 display HW pipelines binding to > 2 different power domains, different clock drivers and different > mediatek-drm drivers. I don't see binding to different clock drivers and anyway that's not really an argument here. Please focus in description on hardware properties, IOW, are devices compatible or different. What is the incompatible difference between VDOSYS0 and 1? Best regards, Krzysztof