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| author | Lyude Paul <lyude@redhat.com> | 2020-04-03 14:11:46 -0400 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2020-04-09 12:07:07 -0400 |
| commit | 17e03aa8cc16e3d43848fb459f0435372f1c5b9b (patch) | |
| tree | 8afc73eccdca4eda12802f2e9c045ce11faa89b9 /drivers | |
| parent | 44cfc6233447cb2cf47aeb99457de35826a363f6 (diff) | |
| download | linux-17e03aa8cc16e3d43848fb459f0435372f1c5b9b.tar.gz linux-17e03aa8cc16e3d43848fb459f0435372f1c5b9b.tar.bz2 linux-17e03aa8cc16e3d43848fb459f0435372f1c5b9b.zip | |
drm/dp_mst: Improve kdocs for drm_dp_check_act_status()
No functional changes.
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
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/drm_dp_mst_topology.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 3842336f63a5..c6caa0d604ae 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -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 * - * 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) { |