diff options
| author | Kunihiko Hayashi <hayashi.kunihiko@socionext.com> | 2018-11-29 09:06:32 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-11-29 19:34:45 +0100 |
| commit | 7200f2e3c9e267d29e2bfa075794339032e0b98e (patch) | |
| tree | 49a0654f6398c33f4103d76cb58194a532f1d9e6 | |
| parent | net: ethernet: ave: Add suspend/resume support (diff) | |
| download | linux-7200f2e3c9e267d29e2bfa075794339032e0b98e.tar.xz linux-7200f2e3c9e267d29e2bfa075794339032e0b98e.zip | |
net: ethernet: ave: Set initial wol state to disabled
If wol state of phy hardware is enabled after reset, phy_ethtool_get_wol()
returns that wol.wolopts is true.
However, since net_device.wol_enabled is zero and this doesn't apply wol
state until calling ethtool_set_wol(), so mdio_bus_phy_may_suspend()
returns true, that is, it's in a state where phy can suspend even though
wol state is enabled.
In this inconsistency, phy_suspend() returns -EBUSY, and at last,
suspend sequence fails with the following message:
dpm_run_callback(): mdio_bus_phy_suspend+0x0/0x58 returns -16
PM: Device 65000000.ethernet-ffffffff:01 failed to suspend: error -16
PM: Some devices failed to suspend, or early wake event detected
In order to fix the above issue, this patch forces to set initial wol state
to disabled as default.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/socionext/sni_ave.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/net/ethernet/socionext/sni_ave.c b/drivers/net/ethernet/socionext/sni_ave.c index 0933c13cc82a..96b80309e36d 100644 --- a/drivers/net/ethernet/socionext/sni_ave.c +++ b/drivers/net/ethernet/socionext/sni_ave.c @@ -1208,9 +1208,13 @@ static int ave_init(struct net_device *ndev) priv->phydev = phydev; - phy_ethtool_get_wol(phydev, &wol); + ave_ethtool_get_wol(ndev, &wol); device_set_wakeup_capable(&ndev->dev, !!wol.supported); + /* set wol initial state disabled */ + wol.wolopts = 0; + ave_ethtool_set_wol(ndev, &wol); + if (!phy_interface_is_rgmii(phydev)) phy_set_max_speed(phydev, SPEED_100); |