[PATCH 016/103] drm/amd/display: power_down_Hw need signal type to turnoff backlight

[Harry Wentland]

From: Andrew Jiang <Andrew.Jiang at amd.com>

Signed-off-by: Charlene Liu <charlene.liu at amd.com>
Reviewed-by: Anthony Koo <Anthony.Koo at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
index 590b2ad37105..d83a330712f7 100644
--- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
@@ -1171,6 +1171,7 @@ static void power_down_encoders(struct dc *dc)
 {
 	int i;
 	enum connector_id connector_id;
+	enum signal_type signal = SIGNAL_TYPE_NONE;
 	for (i = 0; i < dc->link_count; i++) {
 		connector_id = dal_graphics_object_id_get_connector_id(dc->links[i]->link_id);
 		if ((connector_id == CONNECTOR_ID_DISPLAY_PORT) ||
@@ -1178,10 +1179,12 @@ static void power_down_encoders(struct dc *dc)
 
 			if (!dc->links[i]->wa_flags.dp_keep_receiver_powered)
 				dp_receiver_power_ctrl(dc->links[i], false);
+			if (connector_id == CONNECTOR_ID_EDP)
+				signal = SIGNAL_TYPE_EDP;
 		}
 
 		dc->links[i]->link_enc->funcs->disable_output(
-				dc->links[i]->link_enc, SIGNAL_TYPE_NONE);
+				dc->links[i]->link_enc, signal);
 	}
 }
 
-- 
2.14.1