Name
drm_atomic_check_only — 
     check whether a given config would work
 
Arguments
- state
- 
     atomic configuration to check
     
Description
   Note that this function can return -EDEADLK if the driver needed to acquire
   more locks but encountered a deadlock. The caller must then do the usual w/w
   backoff dance and restart. All other errors are fatal.
Returns
   0 on success, negative error code on failure.