From: Joshua Aberback <joshua.aberback@xxxxxxx>
[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@xxxxxxx>
Reviewed-by: Jun Lei <Jun.Lei@xxxxxxx>
Acked-by: Leo Li <sunpeng.li@xxxxxxx>
---
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 991e6d9f3628..d2948ffc3afe 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1060,7 +1060,7 @@ 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 14664bed8c84..786f61eb381d 100644
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -378,6 +378,7 @@ struct dc_debug_options {
* watermarks are not affected.
*/
unsigned int force_min_dcfclk_mhz;
+ bool disable_timing_sync;
};
struct dc_debug_data {
--
2.22.0
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