Name
drm_atomic_get_crtc_state —
get crtc state
Synopsis
struct drm_crtc_state * drm_atomic_get_crtc_state ( | struct drm_atomic_state * state, |
| | struct drm_crtc * crtc); |
Arguments
state
global atomic state object
crtc
crtc to get state object for
Description
This function returns the crtc state for the given crtc, allocating it if
needed. It will also grab the relevant crtc lock to make sure that the state
is consistent.
Returns
Either the allocated state or the error code encoded into the pointer. 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.