[PATCH v2 0/4] drm/dp_mst: drm_dp_check_act_status() fixes

Noticed this while fixing some unrelated issues with NAKs being dropped - we don't wait nearly long enough to receive ACTs from MST hubs in some situations. Also, we take the time to refactor this function a bit.

This fixes some ACT timeouts I observed on an EVGA MST hub with i915.

Lyude Paul (4): drm/dp_mst: Improve kdocs for drm_dp_check_act_status() drm/dp_mst: Reformat drm_dp_check_act_status() a bit drm/dp_mst: Increase ACT retry timeout to 3s drm/dp_mst: Print errors on ACT timeouts

drivers/gpu/drm/drm_dp_mst_topology.c | 71 +++++++++++++++++---------- 1 file changed, 44 insertions(+), 27 deletions(-)