CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT
tmp = (RREG32(mmCG_FDO_CTRL2) & CG_FDO_CTRL2__FDO_PWM_MODE_MASK) >> CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT;
tmp |= mode << CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT;
*fan_mode = (tmp >> CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT);
tmp |= si_pi->fan_ctrl_default_mode << CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT;