Hello Heiner, > > This may be a problem in itself, but I then wondered why > > mdio_bus_phy_resume() gets called anyhow because the RAVB driver sets > > 'phydev->mac_managed_pm = true' so once the interface is up > > mdio_bus_phy_resume() never gets called. But again, the interface was > > not up yet, so mac_managed_pm was not set yet. > > > Setting phydev->mac_managed_pm in the open() callback is too late. > It should be set as soon as the phydev is created. That's in > ravb_mdio_init() after the call to of_mdiobus_register(). > > It should be possible to get the phydev with: > pn = of_parse_phandle(np, "phy-handle", 0); > phy = of_phy_find_device(pn); Awesome, thank you very much for the pointer. I applied setting 'mac_managed_pm' at probe time, and now I can resume successfully. Sadly, this is only the first part of the problem. I still can't get the interface up after resuming, but I still need to debug this further. At least, the problem with mdiobus_resume getting called is fixed now. Thank you for your help! Wolfram
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