Clemens Ladisch 321cb431c5 drm/fb: fix FBIOGET/PUT_VSCREENINFO pixel clock handling ...

commit 5349ef3127c77075ff70b2014f17ae0fbcaaf199 upstream

When the framebuffer driver does not publish detailed timing information
for the current video mode, the correct value for the pixclock field is
zero, not -1.

Since pixclock is actually unsigned, the value -1 would be interpreted
as 4294967295 picoseconds (i.e., about 4 milliseconds) by
register_framebuffer() and userspace programs.

This patch allows X.org's fbdev driver to work.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Tested-by: Paulius Zaleckas <paulius.zaleckas@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2009-12-08 10:22:43 -08:00

..

drm

drm/fb: fix FBIOGET/PUT_VSCREENINFO pixel clock handling

2009-12-08 10:22:43 -08:00

Makefile

drm: reorganise drm tree to be more future proof.

2008-07-14 10:45:01 +10:00