diff options
| author | Nikola Cornij <nikola.cornij@amd.com> | 2021-05-13 00:00:11 +0300 |
|---|---|---|
| committer | Lyude Paul <lyude@redhat.com> | 2021-05-27 22:30:59 +0300 |
| commit | 71b970c8680732b3dec1f9506087ef56bd6a123d (patch) | |
| tree | cffbf4144baa9029b8171fd5bf1be5d2595ab601 /include/drm | |
| parent | ffa52910faff64f2070af42c22d782c4572d889e (diff) | |
| download | linux-71b970c8680732b3dec1f9506087ef56bd6a123d.tar.xz | |
drm/dp_mst: Use kHz as link rate units when settig source max link caps at init
[why]
Link rate in kHz is what is eventually required to calculate the link
bandwidth, which makes kHz a more generic unit. This should also make
forward-compatibility with new DP standards easier.
[how]
- Replace 'link rate DPCD code' with 'link rate in kHz' when used with
drm_dp_mst_topology_mgr_init()
- Add/remove related DPCD code conversion from/to kHz where applicable
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210512210011.8425-2-nikola.cornij@amd.com
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_dp_mst_helper.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h index c87a829b6498..ddb9231d0309 100644 --- a/include/drm/drm_dp_mst_helper.h +++ b/include/drm/drm_dp_mst_helper.h @@ -596,11 +596,11 @@ struct drm_dp_mst_topology_mgr { /** * @max_lane_count: maximum number of lanes the GPU can drive. */ - u8 max_lane_count; + int max_lane_count; /** - * @max_link_rate: maximum link rate per lane GPU can output. + * @max_link_rate: maximum link rate per lane GPU can output, in kHz. */ - u8 max_link_rate; + int max_link_rate; /** * @conn_base_id: DRM connector ID this mgr is connected to. Only used * to build the MST connector path value. @@ -774,7 +774,7 @@ int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr, struct drm_device *dev, struct drm_dp_aux *aux, int max_dpcd_transaction_bytes, int max_payloads, - u8 max_lane_count, u8 max_link_rate, + int max_lane_count, int max_link_rate, int conn_base_id); void drm_dp_mst_topology_mgr_destroy(struct drm_dp_mst_topology_mgr *mgr); |