diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dc.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h index 2b1fb1de43c5..eb66d67abd9e 100644 --- a/drivers/gpu/drm/amd/display/dc/dc.h +++ b/drivers/gpu/drm/amd/display/dc/dc.h @@ -2024,6 +2024,24 @@ uint32_t dc_link_bandwidth_kbps( const struct dc_link *link, const struct dc_link_settings *link_setting); +struct dp_audio_bandwidth_params { + const struct dc_crtc_timing *crtc_timing; + enum dp_link_encoding link_encoding; + uint32_t channel_count; + uint32_t sample_rate_hz; +}; + +/* The function calculates the minimum size of hblank (in bytes) needed to + * support the specified channel count and sample rate combination, given the + * link encoding and timing to be used. This calculation is not supported + * for 8b/10b SST. + * + * return - min hblank size in bytes, 0 if 8b/10b SST. + */ +uint32_t dc_link_required_hblank_size_bytes( + const struct dc_link *link, + struct dp_audio_bandwidth_params *audio_params); + /* The function takes a snapshot of current link resource allocation state * @dc: pointer to dc of the dm calling this * @map: a dc link resource snapshot defined internally to dc. |