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    Subject[PATCH 5.15 059/244] net: bcmgenet: Indicate MAC is in charge of PHY PM
    Date
    From: Florian Fainelli <f.fainelli@gmail.com>

    commit bc3410f250219660a7be032c01c954a53b2c26ab upstream.

    Avoid the PHY library call unnecessarily into the suspend/resume functions by
    setting phydev->mac_managed_pm to true. The GENET driver essentially does
    exactly what mdio_bus_phy_resume() does by calling phy_init_hw() plus
    phy_resume().

    Fixes: fba863b81604 ("net: phy: make PHY PM ops a no-op if MAC driver manages PHY PM")
    Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
    Link: https://lore.kernel.org/r/20220804173605.1266574-1-f.fainelli@gmail.com
    Signed-off-by: Jakub Kicinski <kuba@kernel.org>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/net/ethernet/broadcom/genet/bcmmii.c | 3 +++
    1 file changed, 3 insertions(+)

    --- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
    +++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
    @@ -361,6 +361,9 @@ int bcmgenet_mii_probe(struct net_device
    if (priv->internal_phy && !GENET_IS_V5(priv))
    dev->phydev->irq = PHY_MAC_INTERRUPT;

    + /* Indicate that the MAC is responsible for PHY PM */
    + dev->phydev->mac_managed_pm = true;
    +
    return 0;
    }


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