linux/drivers/video
Knut Petersen 244ab72d84 [PATCH] fbcon: disable ywrap if not supported by fbcon scrolling code
updatescrollmode() must not select ywrap scrolling if
divides(vc->vc_font.height, yres) is not true as this is not supported by
the actual ywrap scrolling code.

The bug is triggered with e.g.  mode 800x600, vxres 1024, vyres 8192, bpp
8, font dimensions 8x16, 8Mb video ram and FBINFO_HWACCEL_YWRAP set.  If
those conditions are met, scrolling is broken and garbage is permanently
displayed at the bottom of the screen.

No regression, no possible side effects.

Definitely needed by cyblafb and probably needed by amifb.

Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de>
Acked-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:50 -08:00
..
aty [PATCH] atyfb: LT/LG cleanup 2006-01-10 08:01:49 -08:00
backlight [ARM] 3228/1: SharpSL: Move PM code to arch/arm/common 2006-01-05 20:44:55 +00:00
console [PATCH] fbcon: disable ywrap if not supported by fbcon scrolling code 2006-01-10 08:01:50 -08:00
geode [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
i810 [PATCH] fbdev: i810fb: Driver cleanups 2006-01-10 08:01:44 -08:00
intelfb [PATCH] intelfb: Fix oops when changing video mode 2005-12-20 09:27:15 -08:00
kyro [PATCH] fbdev: kyrofb: Driver cleanups 2006-01-10 08:01:45 -08:00
logo spelling: s/retreive/retrieve/ 2006-01-10 00:10:13 +01:00
matrox [PATCH] matroxfb: Remove fbcon.h from the main header file 2006-01-10 08:01:43 -08:00
nvidia [PATCH] nvidiafb: Add support for some pci-e chipsets 2006-01-10 08:01:49 -08:00
riva [PATCH] rivafb: Trim rivafb_pan_display 2006-01-10 08:01:46 -08:00
savage [PATCH] savagefb: Trim savagefb_pan_display 2006-01-10 08:01:47 -08:00
sis [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
68328fb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
acornfb.c [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
acornfb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
amba-clcd.c [ARM] Move asm/hardware/clock.h to linux/clk.h 2006-01-07 16:15:52 +00:00
amifb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
arcfb.c [PATCH] arcfb __user annotations 2005-12-15 10:04:30 -08:00
asiliantfb.c [PATCH] fbdev: asiliantfb: Driver cleanups 2006-01-10 08:01:45 -08:00
atafb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
au1100fb.c Au1100 FB driver uplift for 2.6. 2005-10-29 19:31:01 +01:00
au1100fb.h Au1100 FB driver uplift for 2.6. 2005-10-29 19:31:01 +01:00
bt431.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bt455.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bw2.c [SBUSFB]: Kill 'list' member from foo_par structs, totally unused. 2005-12-12 14:41:20 -08:00
c2p.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
c2p.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cfbcopyarea.c [PATCH] fbdev: Fix incorrect unaligned access in little-endian machines 2005-12-12 22:31:17 -08:00
cfbfillrect.c [PATCH] fbdev: Fix incorrect unaligned access in little-endian machines 2005-12-12 22:31:17 -08:00
cfbimgblt.c [PATCH] fbdev: Fix incorrect unaligned access in little-endian machines 2005-12-12 22:31:17 -08:00
cg3.c [SBUSFB]: Kill 'list' member from foo_par structs, totally unused. 2005-12-12 14:41:20 -08:00
cg6.c [SBUSFB]: Kill 'list' member from foo_par structs, totally unused. 2005-12-12 14:41:20 -08:00
cg14.c [SBUSFB]: Kill 'list' member from foo_par structs, totally unused. 2005-12-12 14:41:20 -08:00
chipsfb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
cirrusfb.c [PATCH] fbdev: cirrusfb: Driver cleanup and bug fixes 2005-11-29 19:47:04 -08:00
clps711xfb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
controlfb.c [PATCH] powerpc: Remove device_node addrs/n_addr 2006-01-09 14:53:55 +11:00
controlfb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyber2000fb.c [ARM] Remove asm/irq.h includes from ARM drivers 2006-01-09 13:56:42 +00:00
cyber2000fb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyberfb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyberfb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
cyblafb.c [PATCH] drivers/*rest*: Replace pci_module_init() with pci_register_driver() 2006-01-09 12:13:23 -08:00
dnfb.c [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
edid.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
epson1355fb.c [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
fbcmap.c [PATCH] fbdev: update info->cmap when setting cmap from user-/kernelspace. 2005-07-27 16:26:19 -07:00
fbcvt.c [PATCH] fbdev: Fix reversed back and front porches 2005-09-20 17:36:38 -07:00
fbmem.c [PATCH] fbdev: Pan display fixes 2005-12-12 22:31:17 -08:00
fbmon.c [PATCH] fbdev: Rearrange mode database entries 2005-11-07 07:53:52 -08:00
fbsysfs.c [PATCH] fbdev: fbdev: Cleanup 2006-01-10 08:01:46 -08:00
ffb.c [SBUSFB]: Kill 'list' member from foo_par structs, totally unused. 2005-12-12 14:41:20 -08:00
fm2fb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
g364fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
gbefb.c [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
hgafb.c [PATCH] fbdev: hgafb: Convert to platform device 2006-01-10 08:01:45 -08:00
hitfb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
hpfb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
igafb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
imsttfb.c [PATCH] fbdev: imsttfb: Driver cleanups 2006-01-10 08:01:45 -08:00
imxfb.c [ARM] 3232/1: i.MX Frame Buffer undeclared "dev" variable fix 2006-01-07 10:44:32 +00:00
imxfb.h [PATCH] ARM: 2687/1: i.MX framebuffer: make dmacr register platform configurable 2005-07-17 20:15:36 +01:00
Kconfig [PATCH] fbdev: atyfb: Remove BIOS-less booting 2006-01-10 08:01:46 -08:00
leo.c [SBUSFB]: Kill 'list' member from foo_par structs, totally unused. 2005-12-12 14:41:20 -08:00
macfb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
macmodes.c [PATCH] macmodes: needs a license 2005-06-14 07:19:35 -07:00
macmodes.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Makefile [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
maxinefb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
modedb.c [PATCH] fbdev: Framebuffer mode required for PowerBook Titanium 2005-11-09 07:56:34 -08:00
neofb.c [PATCH] fbdev: neofb: Driver cleanups 2006-01-10 08:01:45 -08:00
offb.c [PATCH] powerpc: Remove device_node addrs/n_addr 2006-01-09 14:53:55 +11:00
p9100.c [SBUSFB]: Kill 'list' member from foo_par structs, totally unused. 2005-12-12 14:41:20 -08:00
platinumfb.c [PATCH] powerpc: Remove device_node addrs/n_addr 2006-01-09 14:53:55 +11:00
platinumfb.h [PATCH] powerpc: Fix platinumfb for some modes 2006-01-09 14:53:51 +11:00
pm2fb.c [PATCH] fbdev: pm2fb: Driver cleanups 2006-01-10 08:01:45 -08:00
pm3fb.c [PATCH] drivers/video: Replace custom macro with isdigit() 2005-09-13 08:22:33 -07:00
pmag-aa-fb.c [PATCH] DEC PMAG AA framebuffer update 2005-09-05 00:06:03 -07:00
pmag-ba-fb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
pmagb-b-fb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
pvr2fb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
pxafb.c [PATCH] fbdev: make pxafb more robust to errors with CONFIG_FB_PXA_PARAMETERS 2005-12-13 21:18:16 -08:00
pxafb.h [ARM] pxafb: Remove #if DEBUG, convert DPRINTK to pr_debug 2005-09-29 09:44:54 +01:00
q40fb.c [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
radeonfb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
retz3fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
retz3fb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
s1d13xxxfb.c [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
s3c2410fb.c [ARM] Move asm/hardware/clock.h to linux/clk.h 2006-01-07 16:15:52 +00:00
s3c2410fb.h [PATCH] s3c2410fb: ARM S3C2410 framebuffer driver 2005-09-09 14:03:42 -07:00
S3triofb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sa1100fb.c [ARM] Remove asm/irq.h includes from ARM drivers 2006-01-09 13:56:42 +00:00
sa1100fb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sbuslib.c [VIDEO] sbuslib: Disallow private mmaps. 2005-12-24 12:06:10 -08:00
sbuslib.h [SBUSFB]: implement ->compat_ioctl 2005-11-12 12:11:12 -08:00
sgivwfb.c [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
skeletonfb.c [PATCH] skeletonfb: Documentation update 2006-01-10 08:01:49 -08:00
sstfb.c [PATCH] fbdev: sstfb: Driver cleanups 2006-01-10 08:01:46 -08:00
sticore.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
stifb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
sun3fb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
tcx.c [SBUSFB] tcx: Use FB_BLANK_UNBLANK instead of magic constant. 2005-12-12 14:42:07 -08:00
tdfxfb.c [PATCH] fbdev: tdfxfb: Driver cleanups 2006-01-10 08:01:46 -08:00
tgafb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
tridentfb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
tx3912fb.c [PATCH] fbcon/fbdev: Move softcursor out of fbdev to fbcon 2005-11-07 07:53:50 -08:00
valkyriefb.c [PATCH] powerpc: Remove device_node addrs/n_addr 2006-01-09 14:53:55 +11:00
valkyriefb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
vesafb.c [PATCH] Fix vesafb display panning regression 2006-01-10 08:01:47 -08:00
vfb.c [DRIVER MODEL] Convert platform drivers to use struct platform_driver 2005-11-09 22:32:44 +00:00
vga16fb.c [PATCH] vga16fb: Trim vga16fb_pan_display 2006-01-10 08:01:47 -08:00
vgastate.c [PATCH] drivers/video/vgastate.c: kill dead code 2005-11-09 07:56:36 -08:00
virgefb.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
virgefb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
w100fb.c [PATCH] w100fb: platform device conversion fixup 2005-11-13 18:14:11 -08:00
w100fb.h [PATCH] w100fb: Rewrite for platform independence 2005-09-07 16:57:53 -07:00