diff options
| author | Duncan Ma <duncan.ma@amd.com> | 2022-05-12 14:46:24 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2022-06-07 16:09:51 -0400 |
| commit | 2d017189e2b39cf2fae63984215385401b77ea83 (patch) | |
| tree | 34cb011c652cf28bf0d86ac8775cafdb87cf5ce3 /drivers/gpu/drm/amd/display/dc/dc_link.h | |
| parent | 77361ed89a8b03c7e121f4b8c517d7be93ccd8df (diff) | |
drm/amd/display: Blank eDP on enable drv if odm enabled
[Why]
For panels with pixel clock > 1200MHz that require ODM
in pre-OS, when driver is disabled in OS, odm is enabled.
Upon driver enablement, corruption is seen if
odm was originally enabled. DP_PIXEL_COMBINE and
pixelclk must be programmed prior to programming the
optc-odm registers. However, eDP displays aren't blanked
prior to initializing odm in this case.
[How]
Upon driver enablement, check whether odm is enabled,
if so, blank eDP prior to programming optc-odm
registers.
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Duncan Ma <duncan.ma@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 | 1 |
1 files changed, 1 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 0bec986a6de8..c4a42d758b4e 100644 --- a/drivers/gpu/drm/amd/display/dc/dc_link.h +++ b/drivers/gpu/drm/amd/display/dc/dc_link.h @@ -322,6 +322,7 @@ bool dc_link_setup_psr(struct dc_link *dc_link, void dc_link_get_psr_residency(const struct dc_link *link, uint32_t *residency); void dc_link_blank_all_dp_displays(struct dc *dc); +void dc_link_blank_all_edp_displays(struct dc *dc); void dc_link_blank_dp_stream(struct dc_link *link, bool hw_init); |