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drm/amd/pp: Make sure clock_voltage_limit_table on dc is valid

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if vbios not set the max clock voltage limit table for DC mode,
Set the table as sama as the table for AC mode.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2018-06-13 18:53:49 +08:00 • committed by Alex Deucher
commit e1fa921f02
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/amd/powerplay/hwmgr/hwmgr.c
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@ -236,6 +236,11 @@ int hwmgr_hw_init(struct pp_hwmgr *hwmgr)
ret = hwmgr->hwmgr_func->backend_init(hwmgr);
if (ret)
goto err1;
/* make sure dc limits are valid */
if ((hwmgr->dyn_state.max_clock_voltage_on_dc.sclk == 0) ||
(hwmgr->dyn_state.max_clock_voltage_on_dc.mclk == 0))
hwmgr->dyn_state.max_clock_voltage_on_dc =
hwmgr->dyn_state.max_clock_voltage_on_ac;
ret = psm_init_power_state_table(hwmgr);
if (ret)