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 2DFBDD1D484 for ; Thu, 8 Jan 2026 18:10:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9374310E7AE; Thu, 8 Jan 2026 18:10:56 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=chromium.org header.i=@chromium.org header.b="GzVugBpX"; dkim-atps=neutral Received: from mail-dy1-f180.google.com (mail-dy1-f180.google.com [74.125.82.180]) by gabe.freedesktop.org (Postfix) with ESMTPS id 903CA10E7AE for ; Thu, 8 Jan 2026 18:10:54 +0000 (UTC) Received: by mail-dy1-f180.google.com with SMTP id 5a478bee46e88-2b04a410f42so2720080eec.0 for ; Thu, 08 Jan 2026 10:10:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1767895854; x=1768500654; darn=lists.freedesktop.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=F++6n/4BGi0DmBqIND7slBXRlIzqau20b8FuxBFnyb0=; b=GzVugBpX05AOhuE3ArQmtoF9CjYnk10bhphinp7c36IeZHS/mxFyIhFkVFc3RibpT+ aZdaK/ddWnfCkLpzQGHLeTBFCrE79uloE12kTx7nRJPbpLHsrJ038gl8mRiA6AtEsFsz UH+Kcel5y2afErtbBrGTRMCk4s8iJg6IKJqyg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767895854; x=1768500654; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=F++6n/4BGi0DmBqIND7slBXRlIzqau20b8FuxBFnyb0=; b=SnFK7wAVz5hW7U7ATZbNjopqRwewxdmpzgo2/i4CgDyahxLyZFQS0fno9n3/WrSIl8 5Ac3DX89n/fo9SurKzORZd9xW/UakymQDGzlELCEpdxwwu6l+z9kSHfBIRuobOl7XsO4 22Xmuvo5kebke9w92TJb8SiVwU50fsD/RQoIwLaQT3J3Uw1AEQ5ZNoBKbsKsoQUjvC2x KT091OwLDTsVOm/OFttYDLFKj0T7w4B2im9i7oQj8egnODgq15oAeAe8Jc3vaV0w3HlN SAT0U+SbG8B/cO+PgJA4PHvXykL8vL/2ujreD99+5uj5xsMtsZ27naNE2toCeqsxdI2/ VcaQ== X-Forwarded-Encrypted: i=1; AJvYcCWmX8oHT/eH4CyW9fOpyR6sBK257gRnvhHqZ+XhPPPoVi5ZmCaOuTubYp62EOp4l5aBkIQgCgmfqLo=@lists.freedesktop.org X-Gm-Message-State: AOJu0Yz4DJajvmU+Pjs+gUGC++Sk4hcAWdTc+AVOClj+1FiAjkid4qD4 +QwHsEQTDq8jo37nT6MZZGYxzUyLPPO3vjL6mPMXprEP7iyJqJNeVMcxazLvofacZw== X-Gm-Gg: AY/fxX4zgGSAuXbcZIxcqNXB3iH4VohHPo3lR5txhKVfAiaQrU8a1k8x2bHNYF894dQ rbHKAWjtB/sOhEgfK989IWy0lgSIDJzy04fDZC8f0WEgGiPTuadJ/DUYw9cJuejVPVJLdgkjP9P 6ifkHFcwR/9Y6IW6nlACEOm/8DZqDYknKoGGAhsM60Y1eIqkgLAWzHFarLEBIQrTo3xLgryX3Im Jg9KT1BFvIJKplNM5+1aMcriYFdUptkT6TO0M0rs9yJZiId9BnwnfEGduN589CTD6eRyJV8qL3Q f8h70Bf7zuhBeGqw97/bLR4uGYdA03NCIVHwWi+5pTxH2V49L7FcgjonjquytjW3pxm7qWp6/fS VD+r3xA1FljhiDR74Mrhh49fXwX4NEgspA4cFUwdpkbVho/uaUN/XerpSAQLMojxcg60LnBbFlI 2AnbFFE5OTo4cxa7MfIzVMNwUX8fPqLWmPP55tJhub6eOcRs97jA== X-Google-Smtp-Source: AGHT+IFZtAq/oB19PHGm/upN66kIM4s9EQpoNAY5OElHt+T0zXtCo0DhAz7vQLfjH1DBmXAAoy7l3Q== X-Received: by 2002:a05:7300:220e:b0:2ae:5092:934 with SMTP id 5a478bee46e88-2b17d344750mr4750303eec.37.1767895853821; Thu, 08 Jan 2026 10:10:53 -0800 (PST) Received: from localhost ([2a00:79e0:2e7c:8:d9f4:70dd:b942:60f7]) by smtp.gmail.com with UTF8SMTPSA id 5a478bee46e88-2b17078d818sm9030669eec.21.2026.01.08.10.10.52 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 08 Jan 2026 10:10:53 -0800 (PST) Date: Thu, 8 Jan 2026 10:10:51 -0800 From: Brian Norris To: Thomas Zimmermann Cc: tzungbi@kernel.org, jwerner@chromium.org, javierm@redhat.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@gmail.com, simona@ffwll.ch, chrome-platform@lists.linux.dev, dri-devel@lists.freedesktop.org Subject: Re: [PATCH 0/8] drm, coreboot: Add DRM coreboot driver Message-ID: References: <20260108145058.56943-1-tzimmermann@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260108145058.56943-1-tzimmermann@suse.de> 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 Thu, Jan 08, 2026 at 03:19:40PM +0100, Thomas Zimmermann wrote: > Coreboot implements framebuffer support via simplefb. Provide a > native DRM driver. Keep the simplefb code for now. I'm not much of a DRM-er, but what's blocking us from just replacing the simplefb driver with DRM completely? Just being conservative and allowing flexibility? Or are there technical reasons this wouldn't be a proper replacement? It sounds like supporting 2 drivers provides at least some small complications, like in patch 1, where you're trying to avoid repeating similar logic in 2 framebuffer-handling drivers. Brian