Commit 3a03dfb0 authored by Maarten Lankhorst's avatar Maarten Lankhorst Committed by Daniel Vetter

drm/i915: Calculate vblank timestamping constants before enabling vblank.

This is required to properly initialize vblanks on the active crtc.
Without it drm_calc_vbltimestamp_from_scanoutpos can fail with
crtc 0: Noop due to uninitialized mode.
Signed-off-by: default avatarMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: default avatarDaniel Stone <daniels@collabora.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
parent 4be40c98
...@@ -15239,6 +15239,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc) ...@@ -15239,6 +15239,7 @@ static void intel_sanitize_crtc(struct intel_crtc *crtc)
/* restore vblank interrupts to correct state */ /* restore vblank interrupts to correct state */
drm_crtc_vblank_reset(&crtc->base); drm_crtc_vblank_reset(&crtc->base);
if (crtc->active) { if (crtc->active) {
drm_calc_timestamping_constants(&crtc->base, &crtc->base.hwmode);
update_scanline_offset(crtc); update_scanline_offset(crtc);
drm_crtc_vblank_on(&crtc->base); drm_crtc_vblank_on(&crtc->base);
} }
......
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