blob: 911c1ae4318e265e9d1b48fc256b5b6dcb996d2a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
From 7f899298da256db5ad49f3183e4a771eddc75344 Mon Sep 17 00:00:00 2001
From: abdoulaye berthe <abdoulaye.berthe@amd.com>
Date: Tue, 12 Nov 2019 11:07:24 -0500
Subject: [PATCH 4699/4736] drm/amd/display: check for repeater when setting
aux_rd_interval.
[Why]
When training with repeater the aux read interval must be set to
repeater specific aux_red_interval. This value is always 100us for CR.
[How]
Check for repeater when setting the aux_rd_interval in channel
equalization.
Use the right offset in the aux_rd_interval array
Signed-off-by: abdoulaye berthe <abdoulaye.berthe@amd.com>
Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com>
Acked-by: George Shen <George.Shen@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index 015fa0c52746..dfcd6421ee01 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -906,10 +906,10 @@ static enum link_training_result perform_channel_equalization_sequence(
/* 3. wait for receiver to lock-on*/
wait_time_microsec = lt_settings->eq_pattern_time;
- if (!link->is_lttpr_mode_transparent)
+ if (is_repeater(link, offset))
wait_time_microsec =
translate_training_aux_read_interval(
- link->dpcd_caps.lttpr_caps.aux_rd_interval[offset]);
+ link->dpcd_caps.lttpr_caps.aux_rd_interval[offset - 1]);
wait_for_training_aux_rd_interval(
link,
--
2.17.1
|
