Name
drm_atomic_set_crtc_for_plane —
set crtc for plane
Synopsis
int drm_atomic_set_crtc_for_plane ( | struct drm_plane_state * plane_state, |
| | struct drm_crtc * crtc); |
Arguments
plane_state
the plane whose incoming state to update
crtc
crtc to use for the plane
Description
Changing the assigned crtc for a plane requires us to grab the lock and state
for the new crtc, as needed. This function takes care of all these details
besides updating the pointer in the state object itself.
Returns
0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK
then the w/w mutex code has detected a deadlock and the entire atomic
sequence must be restarted. All other errors are fatal.