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.
AUTHORS
Jesse Barnes <[email protected]>
Intel Corporation,
- Initial version
Laurent Pinchart <[email protected]>
Ideas on board SPRL,
- Driver internals
Daniel Vetter <[email protected]>
Intel Corporation,
- Contributions all over the place
Lukas Wunner <[email protected]>
- vga_switcheroo documentation
COPYRIGHT