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drm/amd/powerplay: avoid unnecessary dpm level setting 

No dpm level setting is needed when the request level
is actually same as current.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Evan Quan 2019-01-17 17:48:30 +08:00 committed by Alex Deucher
parent c4c905ec7b
commit a0e4fa2f28
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/powerplay/hwmgr/pp_psm.c
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@ -278,7 +278,8 @@ int psm_adjust_power_state_dynamic(struct pp_hwmgr *hwmgr, bool skip,
phm_notify_smc_display_config_after_ps_adjustment(hwmgr);
if (!phm_force_dpm_levels(hwmgr, hwmgr->request_dpm_level))
if ((hwmgr->request_dpm_level != hwmgr->dpm_level) &&
!phm_force_dpm_levels(hwmgr, hwmgr->request_dpm_level))
hwmgr->dpm_level = hwmgr->request_dpm_level;
if (hwmgr->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) {