Name
drm_atomic_get_plane_state —
get plane state
Synopsis
struct drm_plane_state * drm_atomic_get_plane_state ( | struct drm_atomic_state * state, |
| | struct drm_plane * plane); |
Arguments
state
global atomic state object
plane
plane to get state object for
Description
This function returns the plane state for the given plane, allocating it if
needed. It will also grab the relevant plane 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.