diff options
| author | George Shen <george.shen@amd.com> | 2023-06-16 22:35:46 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-07-18 11:15:51 -0400 |
| commit | 63c0bf99c1d020a744eff286d65b33e2960d9d6b (patch) | |
| tree | 81151f1f3bac58577a8fd1801fe75eb69186f8b1 /drivers/gpu/drm/amd/display/dc/dc.h | |
| parent | 974764180838516f80a13257da67a1ec6afb87d4 (diff) | |
drm/amd/display: Add link encoding to timing BW calculation parameters
[Why]
There certain cases where the timing BW is dependent on the type of link
encoding in use. Thus to calculate the correct BW required for a given
timing, the link encoding should be added as a parameter.
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 8a317b7717f7..d265ef8543c8 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -1415,7 +1415,9 @@ void dc_set_disable_128b_132b_stream_overhead(bool disable); /* The function returns minimum bandwidth required to drive a given timing * return - minimum required timing bandwidth in kbps. */ -uint32_t dc_bandwidth_in_kbps_from_timing(const struct dc_crtc_timing *timing); +uint32_t dc_bandwidth_in_kbps_from_timing( + const struct dc_crtc_timing *timing, + const enum dc_link_encoding_format link_encoding); /* Link Interfaces */ /* @@ -1853,6 +1855,14 @@ enum dp_link_encoding dc_link_dp_mst_decide_link_encoding_format( */ const struct dc_link_settings *dc_link_get_link_cap(const struct dc_link *link); +/* Get the highest encoding format that the link supports; highest meaning the + * encoding format which supports the maximum bandwidth. + * + * @link - a link with DP RX connection + * return - highest encoding format link supports. + */ +enum dc_link_encoding_format dc_link_get_highest_encoding_format(const struct dc_link *link); + /* Check if a RX (ex. DP sink, MST hub, passive or active dongle) is connected * to a link with dp connector signal type. * @link - a link with dp connector signal type |