drm/i915: Set the LVDS_BORDER when using LVDS scaling mode

[safe/jmp/linux-2.6] / drivers / gpu / drm / i915 / intel_lvds.c

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index 98ae3d7..089f18c 100644 (file)
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -380,7 +380,7 @@ static bool intel_lvds_mode_fixup(struct drm_encoder *encoder,
                                adjusted_mode->crtc_vblank_start + vsync_pos;
                /* keep the vsync width constant */
                adjusted_mode->crtc_vsync_end =
-                               adjusted_mode->crtc_vblank_start + vsync_width;
+                               adjusted_mode->crtc_vsync_start + vsync_width;
                border = 1;
                break;
        case DRM_MODE_SCALE_ASPECT:
@@ -526,6 +526,14 @@ out:
        lvds_priv->pfit_control = pfit_control;
        lvds_priv->pfit_pgm_ratios = pfit_pgm_ratios;
        /*
+        * When there exists the border, it means that the LVDS_BORDR
+        * should be enabled.
+        */
+       if (border)
+               dev_priv->lvds_border_bits |= LVDS_BORDER_ENABLE;
+       else
+               dev_priv->lvds_border_bits &= ~(LVDS_BORDER_ENABLE);
+       /*
         * XXX: It would be nice to support lower refresh rates on the
         * panels to reduce power consumption, and perhaps match the
         * user's requested refresh rate.