Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752680AbcLHOWO (ORCPT ); Thu, 8 Dec 2016 09:22:14 -0500 Received: from mail-io0-f194.google.com ([209.85.223.194]:36544 "EHLO mail-io0-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752420AbcLHOWL (ORCPT ); Thu, 8 Dec 2016 09:22:11 -0500 MIME-Version: 1.0 In-Reply-To: <20161208140210.rfyjf2265flsfpfj@phenom.ffwll.local> References: <1479888193-23908-1-git-send-email-tomi.valkeinen@ti.com> <1481158879.26959.41.camel@kernel.crashing.org> <20161208101005.6ufl3d4qvwprosju@phenom.ffwll.local> <20161208140210.rfyjf2265flsfpfj@phenom.ffwll.local> From: Geert Uytterhoeven Date: Thu, 8 Dec 2016 15:22:09 +0100 X-Google-Sender-Auth: ndE8UjwhkB5V_huvLUXefxKQQIs Message-ID: Subject: Re: [RFC PATCH 0/3] staging: remove fbdev drivers To: Daniel Vetter Cc: Benjamin Herrenschmidt , Tomi Valkeinen , Greg Kroah-Hartman , Thomas Petazzoni , =?UTF-8?Q?Noralf_Tr=C3=B8nnes?= , Sudip Mukherjee , Teddy Wang , Arnaud Patard , DRI Development , Linux Fbdev development list , "linux-kernel@vger.kernel.org" Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3055 Lines: 72 Hi Daniel, On Thu, Dec 8, 2016 at 3:02 PM, Daniel Vetter wrote: > On Thu, Dec 08, 2016 at 01:15:56PM +0100, Geert Uytterhoeven wrote: >> On Thu, Dec 8, 2016 at 11:10 AM, Daniel Vetter wrote: >> > On Thu, Dec 08, 2016 at 12:01:19PM +1100, Benjamin Herrenschmidt wrote: >> >> On Wed, 2016-11-23 at 10:03 +0200, Tomi Valkeinen wrote: >> >> > Since the fbdev framework is in maintenance mode and all new display drivers >> >> > should be made with the DRM framework, remove the fbdev drivers from staging. >> >> > >> >> > Note: the patches are created with git format-patch -D, so they can't be >> >> > applied. Only for review. >> >> >> >> I missed the discussion where this decision was made, I admit I am >> >> unimpressed by it. >> >> >> >> DRM drivers don't strike me as suitable for small/slow cores with dumb >> >> framebuffers or simple 2D only accel, such as the one found in the ASpeed >> >> BMCs. >> > >> > We have a helper for simple drivers now, if you take into account the >> > massive helper libraries for everything that comes along with drm I expect >> > if even dumb panels behind slow spi buses drm is now the more suitable >> > subsytem. >> >> This has been going on your years: >> 1. Fbdev is obsolete, everybody should use DRM instead! >> 2. Can you please point me to a small sample driver for a dumb frame buffer? >> 3. Several are being written, but none of them is upstream yet. >> 4. Goto 1. > > Wut. We have like 20+ small atomic drivers nowdays. That's fast! Only two weeks ago you said: | Bummer, they still haven't landed. But afaik there's at least 4 of | them floating around in various places ... >> > That's correct, and drm can cope. And compared to fbdev there's a very >> > active community who improves&refactors it every kernel release to make it >> > even better. Since about 2 years (when atomic landed) we merge new drivers at >> > a rate of 2-3 per kernel release, and those new drivers get ever simpler >> > and smaller thanks to all this work. >> >> You mean the kind of refactoring that causes severe merge conflicts between >> drm-next and Linus' tree about every single day? >> (sorry, couldn't resist ;-) > > Yeah, for a subsystem that only consists of 10% of the overall kernel (by > patch count) we do an extremly shitty job. Maybe we should just all slow > down and stop merging support for new hw, and fuck Android and CrOS and > the billions of devices that don't ship upstream, who cares about those > folks. My apologies. In hindsight, my comment sounded much more insulting than it was meant to be. > If you're this good at mainting gpu and display subsystems, maybe you want > to take over? No please ;-) Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds