[PATCH] drm/amd/powerplay: fix wrong clock adjust sequence

Evan Quan evan.quan at amd.com
Wed Jun 6 05:54:46 UTC 2018


The clocks should be adjusted after display configuration changed.
Otherwise, the socclk and memclk may be forced on an unnecessary higher
level.

Change-Id: I0170e968ba1f64d15d4238b658eefc307adc2642
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
index 0af13c1..323990b 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
@@ -265,19 +265,18 @@ int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip,
 	if (skip)
 		return 0;
 
-	if (!hwmgr->ps)
-		/*
-		 * for vega12/vega20 which does not support power state manager
-		 * DAL clock limits should also be honoured
-		 */
-		phm_apply_clock_adjust_rules(hwmgr);
-
 	phm_pre_display_configuration_changed(hwmgr);
 
 	phm_display_configuration_changed(hwmgr);
 
 	if (hwmgr->ps)
 		power_state_management(hwmgr, new_ps);
+	else
+		/*
+		 * for vega12/vega20 which does not support power state manager
+		 * DAL clock limits should also be honoured
+		 */
+		phm_apply_clock_adjust_rules(hwmgr);
 
 	phm_notify_smc_display_config_after_ps_adjustment(hwmgr);
 
-- 
2.7.4



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