From: Paul Hsieh <Paul.Hsieh@xxxxxxx>
[Why]
When init, driver will power up eDP to check eDP
present or not. If eDP not present, driver doesn't
power off eDP VDD cause power consumption.
[How]
If eDP is not present when detection, power off eDP
VDD.
Reviewed-by: Wenjing Liu <Wenjing.Liu@xxxxxxx>
Acked-by: Qingqing Zhuo <qingqing.zhuo@xxxxxxx>
Signed-off-by: Paul Hsieh <Paul.Hsieh@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/link/link_detection.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/link/link_detection.c b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
index fee71ebdfc73..57cf6fa0de7a 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_detection.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_detection.c
@@ -1225,6 +1225,11 @@ bool link_detect_connection_type(struct dc_link *link, enum dc_connection_type *
/* TODO: need to do the actual detection */
} else {
*type = dc_connection_none;
+ if (link->connector_signal == SIGNAL_TYPE_EDP) {
+ /* eDP is not connected, power down it */
+ if (!link->dc->config.edp_no_power_sequencing)
+ link->dc->hwss.edp_power_control(link, false);
+ }
}
return true;
--
2.34.1
