drm/mode: add the CVT algorithm in kernel space
commitd782c3f95c9263dc0b98e7115f75f1e18b9600b3
authorZhao Yakui <yakui.zhao@intel.com>
Mon, 22 Jun 2009 05:17:08 +0000 (22 13:17 +0800)
committerDave Airlie <airlied@linux.ie>
Wed, 15 Jul 2009 06:29:33 +0000 (15 16:29 +1000)
treee58d950cfa9b9a3a0c52e0f91a08b00cb2be8421
parente9e961c9a818a2f24711af493b907a8e40a69efc
drm/mode: add the CVT algorithm in kernel space

Add the CVT algorithm in kernel space. And this function can be called to
generate the required modeline.

I copied it from the file of xserver/hw/xfree86/modes/xf86cvt.c. What I have
done is to translate it by using integer calculation. This is to avoid
the float-point calculation in kernel space.

[airlied:- cleaned up some bits]
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Dave Airlie <airlied@linux.ie>
drivers/gpu/drm/drm_modes.c
include/drm/drm_crtc.h