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From d8e2154aba6dc991ae2852562bca2202dcc56c7b Mon Sep 17 00:00:00 2001
From: Joshua Aberback <joshua.aberback@amd.com>
Date: Fri, 17 May 2019 14:43:10 -0400
Subject: [PATCH 3063/4256] drm/amd/display: Add debug option to disable timing
sync
[Why]
We want a debug option to disable timing sync for testing.
[How]
New dc debug option that must be false to call program_timing_sync
Signed-off-by: Joshua Aberback <joshua.aberback@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 2 +-
drivers/gpu/drm/amd/display/dc/dc.h | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index c1bda186fd40..2503e3308b42 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1072,7 +1072,7 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c
if (result != DC_OK)
return result;
- if (context->stream_count > 1) {
+ if (context->stream_count > 1 && !dc->debug.disable_timing_sync) {
enable_timing_multisync(dc, context);
program_timing_sync(dc, context);
}
diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 441d0c376a9f..6d69fd12e422 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -381,6 +381,7 @@ struct dc_debug_options {
* watermarks are not affected.
*/
unsigned int force_min_dcfclk_mhz;
+ bool disable_timing_sync;
};
struct dc_debug_data {
--
2.17.1
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