RBCPR_CTL_LOOP_EN
val = RBCPR_CTL_LOOP_EN;
cpr_ctl_modify(drv, RBCPR_CTL_LOOP_EN, val);
cpr_ctl_modify(drv, RBCPR_CTL_LOOP_EN, 0);
return reg_val & RBCPR_CTL_LOOP_EN;