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drm/dp_mst: Improve kdocs for drm_dp_check_act_status()

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Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: Sean Paul <sean@poorly.run>
Reviewed-by: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20200406221253.1307209-2-lyude@redhat.com
This commit is contained in:
Lyude Paul 2020-04-03 14:11:46 -04:00
parent 44cfc62334
commit 17e03aa8cc
1 changed files with 6 additions and 2 deletions
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8
drivers/gpu/drm/drm_dp_mst_topology.c
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@ -4440,10 +4440,14 @@ fail:
/** /**
* drm_dp_check_act_status() - Check ACT handled status. * drm_dp_check_act_status() - Polls for ACT handled status.
* @mgr: manager to use * @mgr: manager to use
* *
* Check the payload status bits in the DPCD for ACT handled completion. * Tries waiting for the MST hub to finish updating it's payload table by
* polling for the ACT handled bit.
*
* Returns:
* 0 if the ACT was handled in time, negative error code on failure.
*/ */
int drm_dp_check_act_status(struct drm_dp_mst_topology_mgr *mgr) int drm_dp_check_act_status(struct drm_dp_mst_topology_mgr *mgr)
{ {