From 15d89c30566079b36c9f4f8d4f9543843ac6ec5e Mon Sep 17 00:00:00 2001
From: Sung Lee <sung.lee@amd.com>
Date: Wed, 16 Oct 2019 10:24:01 -0400
Subject: drm/amd/display: Use SIGNAL_TYPE_NONE in disable_output unless eDP
Git-commit: 4338ffa8df23d6665f53dd38da2e415940e3bf13
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
[WHY]
Currently made a change where disable_output is called using signal_type.
Using actual signal_type when calilng disable_output in power_down_encoders
would make DP to HDMI dongle not light up on boot. As it would have signal_type
SIGNAL_TYPE_DISPLAY_PORT.
[HOW]
Set signal_type to SIGNAL_TYPE_NONE unless it is eDP.
Signed-off-by: Sung Lee <sung.lee@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@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/dce110/dce110_hw_sequencer.c | 3 +++
1 file changed, 3 insertions(+)
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 f0e837d14000..37f5bbcba155 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
@@ -1438,6 +1438,9 @@ 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 (signal != SIGNAL_TYPE_EDP)
+ signal = SIGNAL_TYPE_NONE;
+
dc->links[i]->link_enc->funcs->disable_output(
dc->links[i]->link_enc, signal);
}
--
2.28.0