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 2DA4AC433F5 for ; Mon, 17 Jan 2022 12:57:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240044AbiAQM5Z (ORCPT ); Mon, 17 Jan 2022 07:57:25 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:57459 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234259AbiAQM5Y (ORCPT ); Mon, 17 Jan 2022 07:57:24 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1642424243; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=sFtW5j5+VVKOnv4SvkQZxdJ10EG3/bDXd5xR/QAYVgI=; b=OVK7S+ucd577j99ldF7Crqduhy59h/A296QDjNGR7JVnK8XJui4d+AhN9O7k0cvi5JKvzg hPu2RIjCK5mS4wwBDJmrfkYbJbXisgR58c4xcsffa9cDskX/GdRuZCvAAm931Hrm+JeaU+ cL0ewXk8WY18EymsZJkRywyMCavTexI= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-413-5nhe9x8AO5uAzsdZdyfyQQ-1; Mon, 17 Jan 2022 07:57:20 -0500 X-MC-Unique: 5nhe9x8AO5uAzsdZdyfyQQ-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 00CA11006AB7; Mon, 17 Jan 2022 12:57:19 +0000 (UTC) Received: from sirius.home.kraxel.org (unknown [10.39.192.49]) by smtp.corp.redhat.com (Postfix) with ESMTPS id A80AC74EAE; Mon, 17 Jan 2022 12:57:18 +0000 (UTC) Received: by sirius.home.kraxel.org (Postfix, from userid 1000) id C4BE318003BF; Mon, 17 Jan 2022 13:57:16 +0100 (CET) Date: Mon, 17 Jan 2022 13:57:16 +0100 From: Gerd Hoffmann To: Helge Deller Cc: Daniel Vetter , Linus Torvalds , "airlied@gmail.com" , linux-fbdev@vger.kernel.org, Geert Uytterhoeven , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Javier Martinez Canillas Subject: Re: [PATCH] MAINTAINERS: Add Helge as fbdev maintainer Message-ID: <20220117125716.yjwxsze35j2ndn2i@sirius.home.kraxel.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, > b) to include new drivers (for old hardware) if they arrive (probably happens rarely but there can be). > I know of at least one driver which won't be able to support DRM.... Hmm? I seriously doubt that. There is always the option to use a shadow framebuffer, then convert from standard drm formats to whatever esoteric pixel format your hardware expects. Been there, done that. Have a look at the cirrus driver. The physical hardware was designed in the early 90-ies, almost 30 years ago. These days it exists in virtual form only (qemu emulates it). Thanks to the drm driver it runs wayland just fine even though it has a bunch of constrains dictated by the hardware design. take care, Gerd