[PATCH 1/3] drm/amd/powerplay: slow UCLK switch when multiple displays not in sync

Evan Quan evan.quan at amd.com
Fri Jul 20 02:35:03 UTC 2018


Slow switch for UCLK when there is multiple displays and they are
not in sync.

Change-Id: I8a296400d8b96443cc95518905307fc76c9f9e44
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 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 1a0dccb3fac1..bf7b8cfebe2b 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -3780,7 +3780,8 @@ static int vega10_notify_smc_display_config_after_ps_adjustment(
 	uint32_t i;
 	struct pp_display_clock_request clock_req;
 
-	if (hwmgr->display_config->num_display > 1)
+	if ((hwmgr->display_config->num_display > 1) &&
+	     !hwmgr->display_config->multi_monitor_in_sync)
 		vega10_notify_smc_display_change(hwmgr, false);
 	else
 		vega10_notify_smc_display_change(hwmgr, true);
-- 
2.18.0



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