forge/linux-pinenote
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

drm/mode: add the CVT algorithm in kernel space

Browse source 
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>
This commit is contained in:
Zhao Yakui 2009-06-22 13:17:08 +08:00 • committed by Dave Airlie
parent e9e961c9a8
commit d782c3f95c
2 changed files with 222 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/drm/drm_crtc.h
View file

@ -736,4 +736,7 @@ extern int drm_mode_gamma_get_ioctl(struct drm_device *dev,
extern int drm_mode_gamma_set_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv);
extern bool drm_detect_hdmi_monitor(struct edid *edid);
extern struct drm_display_mode *drm_cvt_mode(struct drm_device *dev,
int hdisplay, int vdisplay, int vrefresh,
bool reduced, bool interlaced);
#endif /* __DRM_CRTC_H__ */