Commit 576f9eac authored by Joakim Zhang's avatar Joakim Zhang Committed by David S. Miller

net: stmmac: Fix MAC WoL not working if PHY does not support WoL

Both get and set WoL will check device_can_wakeup(), if MAC supports PMT, it
will set device wakeup capability. After commit 1d8e5b0f ("net: stmmac:
Support WOL with phy"), device wakeup capability will be overwrite in
stmmac_init_phy() according to phy's Wol feature. If phy doesn't support WoL,
then MAC will lose wakeup capability. To fix this issue, only overwrite device
wakeup capability when MAC doesn't support PMT.

For STMMAC now driver checks MAC's WoL capability if MAC supports PMT, if
not support, driver will check PHY's WoL capability.

Fixes: 1d8e5b0f ("net: stmmac: Support WOL with phy")
Reviewed-by: default avatarJisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: default avatarJoakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 297c4de6
...@@ -1196,7 +1196,6 @@ static void stmmac_check_pcs_mode(struct stmmac_priv *priv) ...@@ -1196,7 +1196,6 @@ static void stmmac_check_pcs_mode(struct stmmac_priv *priv)
*/ */
static int stmmac_init_phy(struct net_device *dev) static int stmmac_init_phy(struct net_device *dev)
{ {
struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
struct stmmac_priv *priv = netdev_priv(dev); struct stmmac_priv *priv = netdev_priv(dev);
struct device_node *node; struct device_node *node;
int ret; int ret;
...@@ -1222,8 +1221,12 @@ static int stmmac_init_phy(struct net_device *dev) ...@@ -1222,8 +1221,12 @@ static int stmmac_init_phy(struct net_device *dev)
ret = phylink_connect_phy(priv->phylink, phydev); ret = phylink_connect_phy(priv->phylink, phydev);
} }
phylink_ethtool_get_wol(priv->phylink, &wol); if (!priv->plat->pmt) {
device_set_wakeup_capable(priv->device, !!wol.supported); struct ethtool_wolinfo wol = { .cmd = ETHTOOL_GWOL };
phylink_ethtool_get_wol(priv->phylink, &wol);
device_set_wakeup_capable(priv->device, !!wol.supported);
}
return ret; return ret;
} }
......
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