blob: 3b4296efa7818f6f307d15f6d5a78b89caf2ea97 (
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
|
From 21b16878bc48afc8d331cc6331509f1a65d7e3cf Mon Sep 17 00:00:00 2001
From: Harry Wentland <harry.wentland@amd.com>
Date: Tue, 9 May 2017 10:41:42 -0400
Subject: [PATCH 0400/4131] drm/amd/display: Keep DVI_SINGLE_LINK signal if low
clk
If user is using DVI->HDMI dongle dual link signal might pose a
problem. Keep single link signal type if clk is lower than
max tmds clk.
Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
index ae8b221..9588217 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_resource.c
@@ -1283,9 +1283,12 @@ static void update_stream_signal(struct core_stream *stream)
stream->signal = stream->public.output_signal;
}
- if (stream->signal == SIGNAL_TYPE_DVI_SINGLE_LINK &&
- stream->public.timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ)
- stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
+ if (dc_is_dvi_signal(stream->signal)) {
+ if (stream->public.timing.pix_clk_khz > TMDS_MAX_PIXEL_CLOCK_IN_KHZ)
+ stream->signal = SIGNAL_TYPE_DVI_DUAL_LINK;
+ else
+ stream->signal = SIGNAL_TYPE_DVI_SINGLE_LINK;
+ }
}
bool resource_is_stream_unchanged(
--
2.7.4
|
