9f0a853598fe drm: Introduce DRM_CAP_ATOMIC_ERROR_REPORTING
828c0b2040d2 drm/i915/display: Error codes for async flip failures
35c2cfaaaa34 drm/atomic: Return user readable error in atomic_ioctl
f9aeb6fe8038 drm/atomic: Allocate atomic_state at the beginning of atomic_ioctl
6c8a0213ffe8 drm/atomic: Call complete_signaling only if prepare_signaling is done
d440d4a53e67 drm/atomic: Add error_code element in atomic_state
4b0cc7b8b2df drm: Define user readable error codes for atomic ioctl