[PATCH] drm/modes: Fix CVT-R modeline generation

[Adam Jackson]

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16651

Signed-off-by: Adam Jackson <ajax at redhat.com>
---
 drivers/gpu/drm/drm_modes.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index f1f473e..949326d 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -251,7 +251,10 @@ struct drm_display_mode *drm_cvt_mode(struct drm_device *dev, int hdisplay,
 		drm_mode->htotal = drm_mode->hdisplay + CVT_RB_H_BLANK;
 		/* Fill in HSync values */
 		drm_mode->hsync_end = drm_mode->hdisplay + CVT_RB_H_BLANK / 2;
-		drm_mode->hsync_start = drm_mode->hsync_end = CVT_RB_H_SYNC;
+		drm_mode->hsync_start = drm_mode->hsync_end - CVT_RB_H_SYNC;
+		/* Fill in VSync values */
+		drm_mode->vsync_start = drm_mode->vdisplay + CVT_RB_VFPORCH;
+		drm_mode->vsync_end = drm_mode->vsync_start + vsync;
 	}
 	/* 15/13. Find pixel clock frequency (kHz for xf86) */
 	drm_mode->clock = drm_mode->htotal * HV_FACTOR * 1000 / hperiod;
-- 
1.7.2.1