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drm/amd/powerplay: add mvdd dpm support. 

SMC requires master switch bit to be set.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Rex Zhu 2016-06-27 17:30:24 +08:00 committed by Alex Deucher
parent d826c982d7
commit 696b2d7370
1 changed files with 2 additions and 3 deletions
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5
drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
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@ -1913,9 +1913,8 @@ static int polaris10_populate_vr_config(struct pp_hwmgr *hwmgr,
if (POLARIS10_VOLTAGE_CONTROL_BY_SVID2 == data->mvdd_control) {
config = VR_SVI2_PLANE_2;
table->VRConfig |= (config << VRCONF_MVDD_SHIFT);
} else if (POLARIS10_VOLTAGE_CONTROL_BY_GPIO == data->mvdd_control) {
config = VR_SMIO_PATTERN_2;
table->VRConfig |= (config << VRCONF_MVDD_SHIFT);
cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, data->soft_regs_start +
offsetof(SMU74_SoftRegisters, AllowMvddSwitch), 0x1);
} else {
config = VR_STATIC_VOLTAGE;
table->VRConfig |= (config << VRCONF_MVDD_SHIFT);