From 43fe853836d50635fc29a7cb6f31bb5e0f8dfd5d Mon Sep 17 00:00:00 2001
From: Yi-Ling Chen <Yi-Ling.Chen2@amd.com>
Date: Mon, 1 Jun 2020 10:46:07 +0800
Subject: drm/amd/display: Fixed using wrong eDP power sequence function
Git-commit: 75cb89112e948bfcbe93a49f25d3b83519e0d0f2
Patch-mainline: v5.9-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
 pointer

[why]
dc->hwss->edp_backlight_control is null, it would casue it only be off
main-link of eDP.  It is not worng behavior for eDP power sequence off.

[how]
Must use hwseq->funcs.edp_backlight_control finction pointer for edp
backlight.

Signed-off-by: Yi-Ling Chen <Yi-Ling.Chen2@amd.com>
Reviewed-by: Sung Lee <Sung.Lee@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index 845e7f823a3d..abb160b5c395 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1394,10 +1394,10 @@ void dcn10_init_hw(struct dc *dc)
 		if (edp_link &&
 				edp_link->link_enc->funcs->is_dig_enabled &&
 				edp_link->link_enc->funcs->is_dig_enabled(edp_link->link_enc) &&
-				dc->hwss.edp_backlight_control &&
+				dc->hwseq->funcs.edp_backlight_control &&
 				dc->hwss.power_down &&
 				dc->hwss.edp_power_control) {
-			dc->hwss.edp_backlight_control(edp_link, false);
+			dc->hwseq->funcs.edp_backlight_control(edp_link, false);
 			dc->hwss.power_down(dc);
 			dc->hwss.edp_power_control(edp_link, false);
 		} else {
-- 
2.29.2