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>

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
index c2b05af..69be3e5 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
@@ -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);