Hi, On Thu, May 19, 2022 at 05:30:59PM +0200, Clément Léger wrote: > Add a PCS driver for the MII converter that is present on the Renesas > RZ/N1 SoC. This MII converter is reponsible for converting MII to > RMII/RGMII or act as a MII pass-trough. Exposing it as a PCS allows to > reuse it in both the switch driver and the stmmac driver. Currently, > this driver only allows the PCS to be used by the dual Cortex-A7 > subsystem since the register locking system is not used. > > Signed-off-by: Clément Léger <clement.leger@xxxxxxxxxxx> Looks much better now, thanks. Only one thing I've spotted is: > +static int miic_validate(struct phylink_pcs *pcs, unsigned long *supported, > + const struct phylink_link_state *state) > +{ > + if (state->interface == PHY_INTERFACE_MODE_RGMII || > + state->interface == PHY_INTERFACE_MODE_RGMII_ID || > + state->interface == PHY_INTERFACE_MODE_RGMII_TXID || > + state->interface == PHY_INTERFACE_MODE_RGMII_RXID || The above could use: if (phy_interface_mode_is_rgmii(state->interface) || Also, as a request to unbind this driver would be disasterous to users, I think you should set ".suppress_bind_attrs = true" to prevent the sysfs bind/unbind facility being available. This doesn't completely solve the problem. Thanks. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!