diff options
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vblank.c | 10 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_vblank.h | 1 |
2 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_vblank.c b/drivers/gpu/drm/i915/display/intel_vblank.c index e5db54b1c632..5b065e1cd4e4 100644 --- a/drivers/gpu/drm/i915/display/intel_vblank.c +++ b/drivers/gpu/drm/i915/display/intel_vblank.c @@ -557,6 +557,16 @@ void intel_crtc_update_active_timings(const struct intel_crtc_state *crtc_state, spin_unlock_irqrestore(&i915->drm.vblank_time_lock, irqflags); } +int intel_mode_vdisplay(const struct drm_display_mode *mode) +{ + int vdisplay = mode->crtc_vdisplay; + + if (mode->flags & DRM_MODE_FLAG_INTERLACE) + vdisplay = DIV_ROUND_UP(vdisplay, 2); + + return vdisplay; +} + int intel_mode_vblank_start(const struct drm_display_mode *mode) { int vblank_start = mode->crtc_vblank_start; diff --git a/drivers/gpu/drm/i915/display/intel_vblank.h b/drivers/gpu/drm/i915/display/intel_vblank.h index b51ae2c1039e..7e526f6861e4 100644 --- a/drivers/gpu/drm/i915/display/intel_vblank.h +++ b/drivers/gpu/drm/i915/display/intel_vblank.h @@ -20,6 +20,7 @@ struct intel_vblank_evade_ctx { bool need_vlv_dsi_wa; }; +int intel_mode_vdisplay(const struct drm_display_mode *mode); int intel_mode_vblank_start(const struct drm_display_mode *mode); int intel_mode_vblank_end(const struct drm_display_mode *mode); int intel_mode_vtotal(const struct drm_display_mode *mode); |