Make the offb (Open Firmware frame buffer) driver tristate,
i.e., so that it can be built as a loadable module.
However, it still depends on the setting of DRM_OFDRM
so that both of these drivers cannot be builtin at the same time
nor can one be builtin and the other one a loadable module.
Build-tested successfully with all combination of DRM_OFDRM and FB_OF.
This fixes a build issue that Michal reported when FB_OF=y and
DRM_OFDRM=m:
powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x58): undefined
reference to `cfb_fillrect'
powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x60): undefined
reference to `cfb_copyarea'
powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x68): undefined
reference to `cfb_imageblit'
Signed-off-by: Randy Dunlap <rdun...@infradead.org>
Suggested-by: Arnd Bergmann <a...@arndb.de>
Cc: Masahiro Yamada <masahi...@kernel.org>
Cc: Thomas Zimmermann <tzimmerm...@suse.de>
Cc: Michal Suchánek <msucha...@suse.de>
Cc: linuxppc-...@lists.ozlabs.org
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: Helge Deller <del...@gmx.de>
Cc: linux-fb...@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
---
drivers/video/fbdev/Kconfig | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -- a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -456,8 +456,8 @@ config FB_ATARI
chipset found in Ataris.
config FB_OF
- bool "Open Firmware frame buffer device support"
- depends on (FB = y) && PPC && (!PPC_PSERIES || PCI)
+ tristate "Open Firmware frame buffer device support"
+ depends on FB && PPC && (!PPC_PSERIES || PCI)
depends on !DRM_OFDRM
select APERTURE_HELPERS
select FB_CFB_FILLRECT
