AW: [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open up C22 and C45 space in parallel

> Von: Andrew Lunn <[email protected]> 
> Gesendet: Montag, 17. August 2026 22:11
> An: Markus Stockhausen <[email protected]>
> Betreff: Re: [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open
up C22 and C45 space in parallel
>
> > All downstream 1G PHY drivers for that platform use dedicated 
> > read_mmd/write_mmd callbacks that run __mdiobus_c45_read/write().
> > So no warnings during bootup.
>
> O.K.
>
> In Mainline, please think about how you make that work. Are these PHYs
> also used with MDIO busses which have working C45 over C22? And no
> C45?

Until now we never encountered any of these PHYs in scope 
(RTL8218x octa port) outside of the Realtek RTL83xx/RTL93xx 
ecosystem.

Independent from that upstream "Generic FE-GE Realtek PHY"
uses the same unconditional C45 access  - regardeless of the bus 
feature set.

Makrus