diff options
| author | Charlene Liu <Charlene.Liu@amd.com> | 2025-03-26 12:11:35 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-04-08 01:01:08 +0300 |
| commit | 0d93e821867c2a6edcd15317311dcb99f7a16887 (patch) | |
| tree | c74ce7a7a7ebf76ab4446b6c7c9d77bac1b5de03 /drivers/gpu/drm/amd/display | |
| parent | 32be4e39f459f3ac9c191569ae8e3731cb82f7ab (diff) | |
| download | linux-0d93e821867c2a6edcd15317311dcb99f7a16887.tar.xz | |
drm/amd/display: turn off eDP lcdvdd and backlight if not required
[why]
A+N configuration, eDP on A-APU is off, extended display active.
Resume from s4, eDP's backlight is still on.
[how]
Turn off inactive eDP backlight and lcdvdd.
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Jing Zhou <Jing.Zhou@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')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c | 2 |
2 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 636999fcaebb..66e23507eb82 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -6298,10 +6298,10 @@ void dc_query_current_properties(struct dc *dc, struct dc_current_properties *pr void dc_set_edp_power(const struct dc *dc, struct dc_link *edp_link, bool powerOn) { - if (edp_link->connector_signal != SIGNAL_TYPE_EDP) + if (!edp_link || !edp_link->dc || !edp_link->dc->link_srv) return; - if (edp_link->skip_implict_edp_power_control == false) + if (edp_link->connector_signal != SIGNAL_TYPE_EDP) return; edp_link->dc->link_srv->edp_set_panel_power(edp_link, powerOn); diff --git a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c index da74c2b5854f..f50c4dbc7553 100644 --- a/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c +++ b/drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c @@ -393,6 +393,7 @@ void edp_set_panel_power(struct dc_link *link, bool powerOn) // 3. Rx power on dpcd_write_rx_power_ctrl(link, true); + DC_LOG_BACKLIGHT("eDP power and backlight: Power on"); } else { // 3. Rx power off dpcd_write_rx_power_ctrl(link, false); @@ -404,6 +405,7 @@ void edp_set_panel_power(struct dc_link *link, bool powerOn) // 1. panel VDD off if (!link->dc->config.edp_no_power_sequencing) link->dc->hwss.edp_power_control(link, false); + DC_LOG_BACKLIGHT("eDP power and backlight: Power off"); } } |