dpsw_if_enable
ret = dpsw_if_enable(ethsw->mc_io, 0,
ret = dpsw_if_enable(ethsw->mc_io, 0,
err = dpsw_if_enable(port_priv->ethsw_data->mc_io, 0,
int dpsw_if_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u16 if_id);