From 26bbdadad356ec02d33657858d91675f3e9aca94 Mon Sep 17 00:00:00 2001 From: Zhao Yakui Date: Mon, 22 Jun 2009 13:17:09 +0800 Subject: drm/mode: add the GTF algorithm in kernel space Add the GTF 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/xf86gtf.c. What I have done is to translate it by using integer calculation. This is to avoid the float-point calculation in kernel space. At the same tie I also refer to the function of fb_get_mode in drivers/video/fbmon.c Signed-off-by: Zhao Yakui Signed-off-by: Dave Airlie --- include/drm/drm_crtc.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 820bc0977e5..125994d8ac0 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -739,4 +739,7 @@ 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); +extern struct drm_display_mode *drm_gtf_mode(struct drm_device *dev, + int hdisplay, int vdisplay, int vrefresh, + bool interlaced, int margins); #endif /* __DRM_CRTC_H__ */ -- cgit v1.2.3