[PATCH 07/10] drm/amd/display: Set ignore_msa_timing flag for freesync modes

[Harry Wentland]

From: Sylvia Tsai <sylvia.tsai at amd.com>

- Set ignore_msa_timing_param to 1 only for modes that can support freesync

Change-Id: I94122df078976933ba48326f3b32567bc1a9d628
Signed-off-by: Sylvia Tsai <sylvia.tsai at amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng at amd.com>
Acked-by: Harry Wentland <Harry.Wentland at amd.com>
---
 drivers/gpu/drm/amd/display/modules/freesync/freesync.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
index 1ee732768f6e..b00b1df71f3e 100644
--- a/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
+++ b/drivers/gpu/drm/amd/display/modules/freesync/freesync.c
@@ -262,7 +262,11 @@ bool mod_freesync_add_stream(struct mod_freesync *mod_freesync,
 					enable_for_video = false;
 		}
 
-		if (caps->supported)
+		unsigned int nom_refresh_rate_micro_hz = (unsigned int)
+				(((unsigned long long) core_stream->public.timing.pix_clk_khz) * 1000ULL * 1000ULL * 1000ULL
+				/ core_stream->public.timing.h_total / core_stream->public.timing.v_total);
+
+		if (caps->supported && nom_refresh_rate_micro_hz >= caps->min_refresh_in_micro_hz && nom_refresh_rate_micro_hz <= caps->max_refresh_in_micro_hz)
 			core_stream->public.ignore_msa_timing_param = 1;
 
 		core_freesync->num_entities++;
-- 
2.9.3