Name
drm_atomic_set_crtc_for_connector —
set crtc for connector
Synopsis
int drm_atomic_set_crtc_for_connector ( | struct drm_connector_state * conn_state, |
| | struct drm_crtc * crtc); |
Arguments
conn_state
atomic state object for the connector
crtc
crtc to use for the connector
Description
Changing the assigned crtc for a connector 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.