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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 /drivers/gpu/drm/drm_atomic_helper.c | |
| parent | f7741aa75e76440f4e9ecfe512feebe9bce33ca8 (diff) | |
| download | op-kernel-dev-d807ed1c55fb1b2dcfb2bc49385e227f6bee7669.zip op-kernel-dev-d807ed1c55fb1b2dcfb2bc49385e227f6bee7669.tar.gz | |
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 'drivers/gpu/drm/drm_atomic_helper.c')
| -rw-r--r-- | drivers/gpu/drm/drm_atomic_helper.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index c3f8347..36f83fe 100644 --- a/drivers/gpu/drm/drm_atomic_helper.c +++ b/drivers/gpu/drm/drm_atomic_helper.c @@ -458,10 +458,11 @@ mode_fixup(struct drm_atomic_state *state) * removed from the crtc. * crtc_state->active_changed is set when crtc_state->active changes, * which is used for dpms. + * See also: drm_atomic_crtc_needs_modeset() * * IMPORTANT: * - * Drivers which update ->mode_changed (e.g. in their ->atomic_check hooks if a + * Drivers which set ->mode_changed (e.g. in their ->atomic_check hooks if a * plane update can't be done without a full modeset) _must_ call this function * afterwards after that change. It is permitted to call this function multiple * times for the same update, e.g. when the ->atomic_check functions depend upon @@ -510,9 +511,9 @@ drm_atomic_helper_check_modeset(struct drm_device *dev, for_each_connector_in_state(state, connector, connector_state, i) { /* - * This only sets crtc->mode_changed for routing changes, - * drivers must set crtc->mode_changed themselves when connector - * properties need to be updated. + * This only sets crtc->connectors_changed for routing changes, + * drivers must set crtc->connectors_changed themselves when + * connector properties need to be updated. */ ret = update_connector_routing(state, connector, connector_state); |
