CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT
>> CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT;
tmp |= mode << CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT;
tmp |= pi->fan_ctrl_default_mode << CG_FDO_CTRL2__FDO_PWM_MODE__SHIFT;