diff options
| author | Shen, George <George.Shen@amd.com> | 2022-01-23 13:20:05 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-01-25 18:00:35 -0500 |
| commit | 4a3ad932b2c538c62e4a60dd4b7411f802e018ec (patch) | |
| tree | 47d7ae30f99492a743083180a3403ceda9f445df /drivers/gpu/drm/amd/display/dc/dc_link.h | |
| parent | b80ddeb29d9df449f875f0b6f5de08d7537c02b8 (diff) | |
| download | linux-4a3ad932b2c538c62e4a60dd4b7411f802e018ec.tar.bz2 | |
drm/amd/display: Add Cable ID support for native DP
[Why/How]
We need to handle cable capabilities for cables that support cable ID.
The cable attributes are intersected with the verified link caps to
determine appropriate max link rate. After determining cable attributes
we update the DP receiver.
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: George Shen <George.Shen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc_link.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h b/drivers/gpu/drm/amd/display/dc/dc_link.h index 9014c0a0a63b..b1c79b3f26aa 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -43,6 +43,10 @@ struct dc_link_status { struct dpcd_caps *dpcd_caps; }; +struct dp_receiver_status { + bool cable_id_updated; +}; + /* DP MST stream allocation (payload bandwidth number) */ struct link_mst_stream_allocation { /* DIG front */ @@ -201,6 +205,7 @@ struct dc_link { struct link_mst_stream_allocation_table mst_stream_alloc_table; struct dc_link_status link_status; + struct dp_receiver_status dprx_status; struct link_trace link_trace; struct gpio *hpd_gpio; @@ -459,4 +464,6 @@ const struct link_resource *dc_link_get_cur_link_res(const struct dc_link *link) void dc_get_cur_link_res_map(const struct dc *dc, uint32_t *map); /* restore link resource allocation state from a snapshot */ void dc_restore_link_res_map(const struct dc *dc, uint32_t *map); + +void dc_link_dp_clear_rx_status(struct dc_link *link); #endif /* DC_LINK_H_ */ |