get_retimer_mode
ret = get_retimer_mode(nn, N3000_NIOS_PKVL_A_MODE_STS, &mode);
ret = get_retimer_mode(nn, N3000_NIOS_PKVL_B_MODE_STS, &mode);
ret = get_retimer_mode(nn, N3000_NIOS_PKVL_A_MODE_STS, &retimer_a_mode);
ret = get_retimer_mode(nn, N3000_NIOS_PKVL_B_MODE_STS, &retimer_b_mode);