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
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
From f9e34397945de1a5238bf409a9fb192b31ebf39b Mon Sep 17 00:00:00 2001
From: "Leo (Sunpeng) Li" <sunpeng.li@amd.com>
Date: Tue, 6 Feb 2018 09:50:49 -0500
Subject: [PATCH 3562/4131] drm/amd/display: Expose dither setting
functionality to Linux
We will need this to disable dither for CRC capture.
Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 31 ++++++++++++++++++++++++++++++
drivers/gpu/drm/amd/display/dc/dc_stream.h | 3 +++
2 files changed, 34 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 11f90dd..3bb23a7 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -300,6 +300,37 @@ bool dc_stream_get_crc(struct dc *dc, struct dc_stream_state *stream,
return false;
}
+void dc_stream_set_dither_option(struct dc_stream_state *stream,
+ enum dc_dither_option option)
+{
+ struct bit_depth_reduction_params params;
+ struct dc_link *link = stream->status.link;
+ struct pipe_ctx *pipes = NULL;
+ int i;
+
+ for (i = 0; i < MAX_PIPES; i++) {
+ if (link->dc->current_state->res_ctx.pipe_ctx[i].stream ==
+ stream) {
+ pipes = &link->dc->current_state->res_ctx.pipe_ctx[i];
+ break;
+ }
+ }
+
+ memset(¶ms, 0, sizeof(params));
+ if (!pipes)
+ return;
+ if (option > DITHER_OPTION_MAX)
+ return;
+
+ stream->dither_option = option;
+
+ resource_build_bit_depth_reduction_params(stream,
+ ¶ms);
+ stream->bit_depth_params = params;
+ pipes->stream_res.opp->funcs->
+ opp_program_bit_depth_reduction(pipes->stream_res.opp, ¶ms);
+}
+
void dc_stream_set_static_screen_events(struct dc *dc,
struct dc_stream_state **streams,
int num_streams,
diff --git a/drivers/gpu/drm/amd/display/dc/dc_stream.h b/drivers/gpu/drm/amd/display/dc/dc_stream.h
index 2d2472b..78a2bbe 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_stream.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_stream.h
@@ -287,6 +287,9 @@ void dc_stream_set_static_screen_events(struct dc *dc,
int num_streams,
const struct dc_static_screen_events *events);
+void dc_stream_set_dither_option(struct dc_stream_state *stream,
+ enum dc_dither_option option);
+
bool dc_stream_adjust_vmin_vmax(struct dc *dc,
struct dc_stream_state **stream,
--
2.7.4
|
