[PATCH 2/3] drm/amdgpu/powerplay/vega10: enable mclk switching if monitors are synced

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If DC has synced the displays, we can enable mclk switching to
save power.

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 948c54cb9c5d..d08493b67b67 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -3220,7 +3220,8 @@ static int vega10_apply_state_adjust_rules(struct pp_hwmgr *hwmgr,
 	if (hwmgr->display_config->num_display == 0)
 		disable_mclk_switching = false;
 	else
-		disable_mclk_switching = (hwmgr->display_config->num_display > 1) ||
+		disable_mclk_switching = ((1 < hwmgr->display_config->num_display) &&
+					  !hwmgr->display_config->multi_monitor_in_sync) ||
 			disable_mclk_switching_for_frame_lock ||
 			disable_mclk_switching_for_vr ||
 			force_mclk_high;
-- 
2.20.1

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