diff options
| author | Wolfram Sang | 2023-03-27 10:31:38 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-04-06 12:10:47 +0200 |
| commit | 0b9541ae1dd1a7436af697e12ca76ff6a507b3cb (patch) | |
| tree | 1784eeba1023409b4672f0a98ac432b33ed0163c | |
| parent | a921dbbc04e3e4edfaa6245e905207030c1a14bd (diff) | |
smsc911x: avoid PHY being resumed when interface is not up
[ Upstream commit f22c993f31fa9615df46e49cd768b713d39a852f ]
SMSC911x doesn't need mdiobus suspend/resume, that's why it sets
'mac_managed_pm'. However, setting it needs to be moved from init to
probe, so mdiobus PM functions will really never be called (e.g. when
the interface is not up yet during suspend/resume).
Fixes: 3ce9f2bef755 ("net: smsc911x: Stop and start PHY during suspend and resume")
Suggested-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230327083138.6044-1-wsa+renesas@sang-engineering.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/smsc/smsc911x.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c index a2e511912e6a..a690d139e177 100644 --- a/drivers/net/ethernet/smsc/smsc911x.c +++ b/drivers/net/ethernet/smsc/smsc911x.c @@ -1037,8 +1037,6 @@ static int smsc911x_mii_probe(struct net_device *dev) return ret; } - /* Indicate that the MAC is responsible for managing PHY PM */ - phydev->mac_managed_pm = true; phy_attached_info(phydev); phy_set_max_speed(phydev, SPEED_100); @@ -1066,6 +1064,7 @@ static int smsc911x_mii_init(struct platform_device *pdev, struct net_device *dev) { struct smsc911x_data *pdata = netdev_priv(dev); + struct phy_device *phydev; int err = -ENXIO; pdata->mii_bus = mdiobus_alloc(); @@ -1108,6 +1107,10 @@ static int smsc911x_mii_init(struct platform_device *pdev, goto err_out_free_bus_2; } + phydev = phy_find_first(pdata->mii_bus); + if (phydev) + phydev->mac_managed_pm = true; + return 0; err_out_free_bus_2: |