On Fri, Oct 27, 2023 at 08:57:38AM +0200, A. Sverdlin wrote:
> From: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxxxx>
>
> When LAN9303 is MDIO-connected two callchains exist into
> mdio->bus->write():
>
> 1. switch ports 1&2 ("physical" PHYs):
>
> virtual (switch-internal) MDIO bus (lan9303_switch_ops->phy_{read|write})->
> lan9303_mdio_phy_{read|write} -> mdiobus_{read|write}_nested
>
> 2. LAN9303 virtual PHY:
>
> virtual MDIO bus (lan9303_phy_{read|write}) ->
> lan9303_virt_phy_reg_{read|write} -> regmap -> lan9303_mdio_{read|write}
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: dc7005831523 ("net: dsa: LAN9303: add MDIO managed mode support")
> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Andrew
