Reviewed-by: Rex Zhu<re...@amd.com<mailto:re...@amd.com>>


Regards
Rex

________________________________
From: amd-gfx <amd-gfx-boun...@lists.freedesktop.org> on behalf of Evan Quan 
<evan.q...@amd.com>
Sent: Friday, July 20, 2018 10:35 AM
To: amd-gfx@lists.freedesktop.org
Cc: Quan, Evan; Zhu, Rex
Subject: [PATCH 1/3] drm/amd/powerplay: slow UCLK switch when multiple displays 
not in sync

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

Change-Id: I8a296400d8b96443cc95518905307fc76c9f9e44
Signed-off-by: Evan Quan <evan.q...@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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