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| author |  Brian Starkey <brian.starkey@arm.com>
| 2016-10-13 10:47:08 +0100 |
|---|---|---|
| committer |  Daniel Vetter <daniel.vetter@ffwll.ch>
| 2016-10-17 08:07:11 +0200 |
| commit | d807ed1c55fb1b2dcfb2bc49385e227f6bee7669 (patch) | |
| tree | d6422d386983b3e6bd1da80b536ba64751ba30c0 /include/drm/drm_crtc.h | |
| parent | drm/savage: dereferencing an error pointer (diff) | |
| download | linux-d807ed1c55fb1b2dcfb2bc49385e227f6bee7669.tar.gz linux-d807ed1c55fb1b2dcfb2bc49385e227f6bee7669.tar.bz2 linux-d807ed1c55fb1b2dcfb2bc49385e227f6bee7669.zip | |
drm: atomic: Clarify documentation around drm_atomic_crtc_needs_modeset
Add some additional comments to more explicitly describe the meaning and
usage of the three CRTC modeset detection booleans: mode_changed,
connectors_changed and active_changed.
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Brian Starkey <brian.starkey@arm.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1476352028-16701-1-git-send-email-brian.starkey@arm.com
Diffstat (limited to 'include/drm/drm_crtc.h')
| -rw-r--r-- | include/drm/drm_crtc.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 0aa292526567..92246619947c 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -116,6 +116,11 @@ struct drm_plane_helper_funcs; * never return in a failure from the ->atomic_check callback. Userspace assumes * that a DPMS On will always succeed. In other words: @enable controls resource * assignment, @active controls the actual hardware state. + * + * The three booleans active_changed, connectors_changed and mode_changed are + * intended to indicate whether a full modeset is needed, rather than strictly + * describing what has changed in a commit. + * See also: drm_atomic_crtc_needs_modeset() */ struct drm_crtc_state { struct drm_crtc *crtc; |