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Revert "net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups"

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commit 63a796558bc22ec699e4193d5c75534757ddf2e6 upstream.

This reverts commit 5537a4679403 ("net: usb: asix: ax88772: drop
phylink use in PM to avoid MDIO runtime PM wakeups"), it breaks
operation of asix ethernet usb dongle after system suspend-resume
cycle.

Link: https://lore.kernel.org/all/b5ea8296-f981-445d-a09a-2f389d7f6fdd@samsung.com/
Fixes: 5537a4679403 ("net: usb: asix: ax88772: drop phylink use in PM to avoid MDIO runtime PM wakeups")
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/2945b9dbadb8ee1fee058b19554a5cb14f1763c1.1757601118.git.pabeni@redhat.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Paolo Abeni 2025-09-11 16:33:31 +02:00 committed by Greg Kroah-Hartman
parent b845eff955
commit b236f23533
1 changed files with 13 additions and 0 deletions
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13
drivers/net/usb/asix_devices.c
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@ -607,8 +607,15 @@ static const struct net_device_ops ax88772_netdev_ops = {
static void ax88772_suspend(struct usbnet *dev)
{
struct asix_common_private *priv = dev->driver_priv;
u16 medium;
if (netif_running(dev->net)) {
rtnl_lock();
phylink_suspend(priv->phylink, false);
rtnl_unlock();
}
/* Stop MAC operation */
medium = asix_read_medium_status(dev, 1);
medium &= ~AX_MEDIUM_RE;
@ -637,6 +644,12 @@ static void ax88772_resume(struct usbnet *dev)
for (i = 0; i < 3; i++)
if (!priv->reset(dev, 1))
break;
if (netif_running(dev->net)) {
rtnl_lock();
phylink_resume(priv->phylink);
rtnl_unlock();
}
}
static int asix_resume(struct usb_interface *intf)