UB960_SR_RX_PORT_CTL
ub960_update_bits(priv, UB960_SR_RX_PORT_CTL, BIT(nport), BIT(nport),
ub960_update_bits(priv, UB960_SR_RX_PORT_CTL, BIT(nport), 0, &ret);
ub960_update_bits(priv, UB960_SR_RX_PORT_CTL, BIT(nport), BIT(nport),
ub960_update_bits(priv, UB960_SR_RX_PORT_CTL, BIT(nport), BIT(nport),
ub960_update_bits(priv, UB960_SR_RX_PORT_CTL, BIT(nport), BIT(nport),
ub960_update_bits(priv, UB960_SR_RX_PORT_CTL, BIT(nport), BIT(nport),
ret = ub960_write(priv, UB960_SR_RX_PORT_CTL, 0, NULL);