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| author | Mikita Lipski <mikita.lipski@amd.com> | 2019-11-14 16:24:29 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-09 18:07:47 -0500 |
| commit | 1c6c1cb5afc77cc8afbe563937c3bd1a41172459 (patch) | |
| tree | 8a8adf43c17e8212e41339f137545e9f047e1d33 /include/drm | |
| parent | f9c8742c66e4b8180db4085555ace9f0775221ae (diff) | |
| download | linux-1c6c1cb5afc77cc8afbe563937c3bd1a41172459.tar.gz linux-1c6c1cb5afc77cc8afbe563937c3bd1a41172459.tar.bz2 linux-1c6c1cb5afc77cc8afbe563937c3bd1a41172459.zip | |
drm/dp_mst: Manually overwrite PBN divider for calculating timeslots
[why]
For DSC case we cannot use topology manager's PBN divider
variable. The default divider does not take FEC into account.
Therefore the driver has to calculate its own divider based
on the link rate and lane count its handling, as it is hw specific.
[how]
Pass pbn_div as an argument, which is used if its more than
zero, otherwise default topology manager's pbn_div will be used.
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Mikita Lipski <mikita.lipski@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_dp_mst_helper.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index c217b2aaaafa..82ab6776ad5b 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -779,7 +779,8 @@ struct drm_dp_mst_topology_state *drm_atomic_get_mst_topology_state(struct drm_a int __must_check drm_dp_atomic_find_vcpi_slots(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr, - struct drm_dp_mst_port *port, int pbn); + struct drm_dp_mst_port *port, int pbn, + int pbn_div); int __must_check drm_dp_atomic_release_vcpi_slots(struct drm_atomic_state *state, struct drm_dp_mst_topology_mgr *mgr, |