The kernel doc explained what needs to happen, but not how to most
easily accomplish that using the functions. Fix that.
Cc: Boris Brezillon <boris.brezil...@free-electrons.com>
Signed-off-by: Daniel Vetter <daniel.vet...@intel.com>
---
include/drm/drm_crtc.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 5f5d53973ca5..3a911a64c257 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -214,7 +214,9 @@ struct drm_crtc_state {
* atomic commit. In that case the event can be send out any time
* after the hardware has stopped scanning out the current
* framebuffers. It should contain the timestamp and counter for the
- * last vblank before the display pipeline was shut off.
+ * last vblank before the display pipeline was shut off. The simplest
+ * way to achieve that is calling drm_crtc_send_vblank_event()
+ * somewhen after drm_crtc_vblank_off() has been called.
*
* - For a CRTC which is enabled at the end of the commit (even when it
* undergoes an full modeset) the vblank timestamp and counter must
--
2.11.0
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