diff options
| author | Mustapha Ghaddar <mghaddar@amd.com> | 2023-01-27 07:48:55 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-02-15 22:20:49 -0500 |
| commit | 8e5cfe547bf3beeb29d9608be68d22dff2b5012b (patch) | |
| tree | 67c9a097af9e4645e81a98d18de2dfcc25548899 /drivers/gpu/drm/amd/display/dc/dc_link.h | |
| parent | b7c67f72408b11b922f23f06c7df0f6743a2e89d (diff) | |
drm/amd/display: upstream link_dp_dpia_bw.c
[WHY & HOW]
- make link_dp_dpia_bw.c available for linux.
- add the verify link peak bw
- clean up code and comment format.
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Mustapha Ghaddar <mghaddar@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_link.h')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dc_link.h | 12 |
1 files changed, 12 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 fcaf27a877ef..cecd807f5ed8 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -558,6 +558,18 @@ void dc_link_set_usb4_req_bw_req(struct dc_link *link, int req_bw); */ void dc_link_get_usb4_req_bw_resp(struct dc_link *link, uint8_t bw, uint8_t result); +/* + * Handle the USB4 BW Allocation related functionality here: + * Plug => Try to allocate max bw from timing parameters supported by the sink + * Unplug => de-allocate bw + * + * @link: pointer to the dc_link struct instance + * @peak_bw: Peak bw used by the link/sink + * + * return: allocated bw else return 0 + */ +int dc_link_dp_dpia_handle_usb4_bandwidth_allocation_for_link(struct dc_link *link, int peak_bw); + /* TODO: this is not meant to be exposed to DM. Should switch to stream update * interface i.e stream_update->dsc_config */ |