From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Date: Mon, 12 Mar 2018 15:20:22 +0000 Subject: Re: [PATCH v5] Fix loading of module radeonfb on PowerMac Message-Id: <2379985.mFGi9AtZPr@amdc3058> List-Id: References: <20180213180316.11934-1-malat@debian.org> In-Reply-To: <20180213180316.11934-1-malat@debian.org> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Mathieu Malaterre Cc: linux-fbdev@vger.kernel.org, Tomi Valkeinen , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org On Tuesday, February 13, 2018 07:03:16 PM Mathieu Malaterre wrote: > When the linux kernel is build with (typical kernel ship with Debian > installer): > > CONFIG_FB=y > CONFIG_FB_OF=y > CONFIG_VT_HW_CONSOLE_BINDING=y > CONFIG_FB_RADEON=m > > The offb driver takes precedence over module radeonfb. It is then > impossible to load the module, error reported is: > > [ 96.551486] radeonfb 0000:00:10.0: enabling device (0006 -> 0007) > [ 96.551526] radeonfb 0000:00:10.0: BAR 0: can't reserve [mem 0x98000000-0x9fffffff pref] > [ 96.551531] radeonfb (0000:00:10.0): cannot request region 0. > [ 96.551545] radeonfb: probe of 0000:00:10.0 failed with error -16 > > This patch reproduce the behavior of the module radeon, so as to make it > possible to load radeonfb when offb is first loaded, see > commit a56f7428d753 ("drm/radeon: Add early unregister of firmware fb's"). > > Signed-off-by: Mathieu Malaterre > Link: https://bugs.debian.org/826629#57 > Link: https://bugzilla.kernel.org/show_bug.cgi?id9741 > Suggested-by: Lennart Sorensen > Cc: Bartlomiej Zolnierkiewicz > Cc: Benjamin Herrenschmidt > Cc: Tomi Valkeinen Patch queued for 4.17, thanks. Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics