diff options
| author | Peikang Zhang <peikang.zhang@amd.com> | 2020-09-08 11:27:25 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-09-22 12:27:43 -0400 |
| commit | 099303e9a9bd77f66a1f7a8b3f447c572b532796 (patch) | |
| tree | d920bfef7e15a8b228b23b9a2cee76bf737d507d /drivers/gpu/drm/amd/display/dc/core | |
| parent | cbf229bbcb7fcc5f4f75f64eee7e224aa1b31ad2 (diff) | |
| download | linux-099303e9a9bd77f66a1f7a8b3f447c572b532796.tar.bz2 | |
drm/amd/display: eDP intermittent black screen during PnP
[Why]
We dont's turn off backlight before power off eDP (VDD),
which is a violation of eDP specs.
[How]
Power off eDP backlight before power off eDP
Signed-off-by: Peikang Zhang <peikang.zhang@amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c index 81c026319ccd..dba338c88256 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c @@ -229,6 +229,8 @@ void dp_disable_link_phy(struct dc_link *link, enum signal_type signal) dp_receiver_power_ctrl(link, false); if (signal == SIGNAL_TYPE_EDP) { + if (link->dc->hwss.edp_backlight_control) + link->dc->hwss.edp_backlight_control(link, false); link->link_enc->funcs->disable_output(link->link_enc, signal); link->dc->hwss.edp_power_control(link, false); } else { |