diff options
| author | George Shen <george.shen@amd.com> | 2024-12-09 10:29:31 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-01-06 14:44:26 -0500 |
| commit | 3ed56d9e8f483994bc5697b59057ab2adf4750ed (patch) | |
| tree | 624db82415840f4f15fd5c626c657db301c3eab6 /drivers/gpu/drm/amd/display/dc/inc | |
| parent | e79cba63de318faa80804701563e58d880c2c492 (diff) | |
drm/amd/display: Add DP required HBlank size calc to link interface
[Why]
Some features, such as HBlank expansion/reduction, needs to know how
much HBlank is required to support basic audio.
[How]
Add interface to link to calculate required HBlank size for a given
link + timing combination to support basic audio (i.e. 2-channel 48KHz).
Reviewed-by: Wenjing Liu <wenjing.liu@amd.com>
Signed-off-by: George Shen <george.shen@amd.com>
Signed-off-by: Roman Li <roman.li@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/inc')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/inc/link.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/inc/link.h b/drivers/gpu/drm/amd/display/dc/inc/link.h index f04292086c08..fd1f9d3db039 100644 --- a/drivers/gpu/drm/amd/display/dc/inc/link.h +++ b/drivers/gpu/drm/amd/display/dc/inc/link.h @@ -148,6 +148,10 @@ struct link_service { const struct dc_stream_state *stream, const unsigned int num_streams); + uint32_t (*dp_required_hblank_size_bytes)( + const struct dc_link *link, + struct dp_audio_bandwidth_params *audio_params); + /*************************** DPMS *************************************/ void (*set_dpms_on)(struct dc_state *state, struct pipe_ctx *pipe_ctx); |