From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wr1-f50.google.com (mail-wr1-f50.google.com [209.85.221.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7CD4C4A07; Sat, 24 Aug 2024 13:26:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.50 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724505989; cv=none; b=hoJs70lxT4QH2oROiRuF+q8aCNDmd00XXbP1yU0EvLI0nGQ6IdxB9Ib7vz4oRX98Z9akKG0NEcRN4C2Ho9vg5f1RmkirrxGuoe2qC3mvna/W5LnYOsT1hwzBdeSIcctWnv6n8ZtkvgAwESVxpPFaJJCOUYZIfWW46wZisaSHIEc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724505989; c=relaxed/simple; bh=+jc/Vc038MHhpyQ8+IxcxqzIq5COI3FuiKc4IC9F6uU=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=WFiqJnMS0JjbjZcYfXSsg/MPy/Xs4SK+n+duyk+o0JRlPiY3kuTi/nr/gHuPrVkRXy5uq8YgCeP2ScgIgJjxiX8X3Nt7z7SUYfBZ0IWXpbZstQ/xxlinkDUu8qQJTYbAO4sa/pCl30XXicLMs/0tnMsIvVuWP4BVubRqwVIgdII= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=QmJxSlKk; arc=none smtp.client-ip=209.85.221.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="QmJxSlKk" Received: by mail-wr1-f50.google.com with SMTP id ffacd0b85a97d-3718b5e9c4fso1428877f8f.0; Sat, 24 Aug 2024 06:26:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724505986; x=1725110786; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:content-language:from :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=114707c9TBN2Gihi0FV0kqjlbdnW0JCr+A5nsEfjtVU=; b=QmJxSlKkihY7Uq7TySUEEU7wPxJPQMijSVW66hMP0WlWbvVNafZLSOPHicBg3G8cRF nK6dQVs4fErZzSmNX6Z8FySo4XSmfs3G1q+YKYhDR1CPHEKPSW0ogfsuCBBzJJHj4M9V E/0LNwQHnwQKdzerl3KOz9lYuc1COeChHxHD3y4LhngQNmf6YEGhQchjAyHwslvwz1C3 aWf7m5Vfo1azP+el+tqClGZPpMEmgmGSRBeK2h/PIS5+vRu1D/Pyry7zzPtqeefsE+mZ Z20cK6Zfg6+1iDm/CgPk1B3L4we76h2VnLcgjLpIJt3LbogXfs8DmFJ2tgcJpvuGZof/ 6oYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724505986; x=1725110786; h=content-transfer-encoding:in-reply-to:content-language:from :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=114707c9TBN2Gihi0FV0kqjlbdnW0JCr+A5nsEfjtVU=; b=qTU1dgFwrRx8vdriAlBpKVfILLg9i6G/YSQ32mhcGM8TkAt41nIFx92wP9GOEWQ5tU oAaBeacWltxnacLKSHf9rs/8K1hY0pU47jKxDO0fCi+pGACWMy/jqeGJXWpX26L2vT9j UyI68FTJE2do8WIr8WBjKM2o9GjzkKdcyVBUUV0JDd60vAfEjfhJ1ZZIszDjycZgFBfV BJoMBFe1DDmYIY69wXx9TtTBX5rpOCG9L5NpzX75ei4JE+dJccIt7iQLXCN0d4l42LaV gm8NWb+m1tpHg3eK3e/gkojQ8hqoWsQS7zah2mNPsntvFoB3c2mVstHdLZH/qwLtIywQ s2/A== X-Forwarded-Encrypted: i=1; AJvYcCUIYFWejIMJfGrBE95CgZeOkJu817yuHv0+6bOKzZ/KwRg23ynMdOfIwTHf8S5hmlH0Tm0/10Sh9LyhIFfe@vger.kernel.org, AJvYcCUJbdlb8Gp2zv6tTgO64Z6lVzAXmB9HfZj8+0V5EYj6dROIgbOuvsZoVLgAB8bI8spgUuRDoSHz@vger.kernel.org, AJvYcCXi4F0CgLxScRj6pmFyVVk5Zyz884S99guHxlvx9oOwOgX1JTcGTjoGsz+7rUc/txjHRmoKoPjEtVOm@vger.kernel.org X-Gm-Message-State: AOJu0YxcnN3HO8zd5WVoQxBpuEJsdyzYIvmntzCOPwIMhjyAfmyf2wPe U0n5LhB6dNGW61GwB64vJoSUKDu4sEGE303W55x+xzkXG+v+Jodw X-Google-Smtp-Source: AGHT+IE97apoWLf+5ctckXkuIwyLEMMq8DzL8/wLznw24XrTkTZaFOgnINabsJwGyILMQnQ7VupSOQ== X-Received: by 2002:a5d:6905:0:b0:373:b44:675 with SMTP id ffacd0b85a97d-3731189b12amr3706013f8f.20.1724505985477; Sat, 24 Aug 2024 06:26:25 -0700 (PDT) Received: from [192.168.0.10] ([178.233.24.52]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-42ac514e269sm95104245e9.2.2024.08.24.06.26.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 24 Aug 2024 06:26:24 -0700 (PDT) Message-ID: Date: Sat, 24 Aug 2024 16:26:22 +0300 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] arm64: dts: mediatek: mt8186-corsola: Disable DPI display interface To: =?UTF-8?B?TsOtY29sYXMgRi4gUi4gQS4gUHJhZG8=?= , Chen-Yu Tsai Cc: Matthias Brugger , AngeloGioacchino Del Regno , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Stephen Boyd , Pin-yen Lin , stable@vger.kernel.org References: <20240821042836.2631815-1-wenst@chromium.org> <00aaa8ff-1344-48dd-b0cb-5e8f4518ff6b@notapiano> From: Alper Nebi Yasak Content-Language: en-US, tr, en-GB In-Reply-To: <00aaa8ff-1344-48dd-b0cb-5e8f4518ff6b@notapiano> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi, On 2024-08-22 18:25 +03:00, Nícolas F. R. A. Prado wrote: > On Wed, Aug 21, 2024 at 12:28:34PM +0800, Chen-Yu Tsai wrote: >> The DPI display interface feeds the external display pipeline. However >> the pipeline representation is currently incomplete. Efforts are still >> under way to come up with a way to represent the "creative" repurposing >> of the DP bridge chip's internal output mux, which is meant to support >> USB type-C orientation changes, to output to one of two type-C ports. >> >> Until that is finalized, the external display can't be fully described, >> and thus won't work. Even worse, the half complete graph potentially >> confuses the OS, breaking the internal display as well. >> >> Disable the external display interface across the whole Corsola family >> until the DP / USB Type-C muxing graph binding is ready. >> >> Reported-by: Alper Nebi Yasak >> Closes: https://lore.kernel.org/linux-mediatek/38a703a9-6efb-456a-a248-1dd3687e526d@gmail.com/ >> Fixes: 8855d01fb81f ("arm64: dts: mediatek: Add MT8186 Krabby platform based Tentacruel / Tentacool") >> Cc: >> Signed-off-by: Chen-Yu Tsai > > Reviewed-by: Nícolas F. R. A. Prado > > Would be good to have Alper verify that with this change the internal display > works again in their specific setup, although this change seems reasonable to me > either way. Tested-by: Alper Nebi Yasak Fixes that linked issue I had with internal display on my magneton. And apparently I don't even need a custom kernel for it, I managed to get the display working on Debian's v6.11-rc4 build with this dts change (and `softdep mediatek-drm pre: mtk-iommu mt6358-regulator` iirc). Thanks!