drm/amd/display: Fix eDP power isn't off when lid close

Signed-off-by: John Wu <john.wu@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c

@@ -112,8 +112,10 @@ void dp_disable_link_phy(struct core_link *link, enum signal_type signal)
 	if (!link->wa_flags.dp_keep_receiver_powered)
 		dp_receiver_power_ctrl(link, false);
 
-	if (signal == SIGNAL_TYPE_EDP)
+	if (signal == SIGNAL_TYPE_EDP) {
 		link->link_enc->funcs->backlight_control(link->link_enc, false);
+		link->link_enc->funcs->power_control(link->link_enc, false);
+	}
 
 	link->link_enc->funcs->disable_output(link->link_enc, signal);