From: Rafael J. Wysocki <rjw@xxxxxxx>
sky2: Fix recent WOL regression
Since dev->power.should_wakeup bit is used by the PCI core to
decide whether the device should wake up the system from sleep
states, set/unset this bit whenever WOL is enabled/disabled using
sky2_set_wol() (this fixes a regression from 2.6.26 on the Tino's
machine).
Remove an open-coded reference to the standard PCI PM registers that
is not used any more.
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Reported-by: Tino Keitel <tino.keitel@xxxxxx>
---
drivers/net/sky2.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
Index: linux-2.6/drivers/net/sky2.c
===================================================================
--- linux-2.6.orig/drivers/net/sky2.c
+++ linux-2.6/drivers/net/sky2.c
@@ -3034,7 +3034,8 @@ static int sky2_set_wol(struct net_devic
struct sky2_port *sky2 = netdev_priv(dev);
struct sky2_hw *hw = sky2->hw;
- if (wol->wolopts & ~sky2_wol_supported(sky2->hw))
+ if ((wol->wolopts & ~sky2_wol_supported(sky2->hw))
+ || !device_can_wakeup(&hw->pdev->dev))
return -EOPNOTSUPP;
sky2->wol = wol->wolopts;
@@ -3045,6 +3046,8 @@ static int sky2_set_wol(struct net_devic
sky2_write32(hw, B0_CTST, sky2->wol
? Y2_HW_WOL_ON : Y2_HW_WOL_OFF);
+ device_set_wakeup_enable(&hw->pdev->dev, sky2->wol);
+
if (!netif_running(dev))
sky2_wol_init(sky2);
return 0;
@@ -4166,18 +4169,6 @@ static int __devinit sky2_test_msi(struc
return err;
}
-static int __devinit pci_wake_enabled(struct pci_dev *dev)
-{
- int pm = pci_find_capability(dev, PCI_CAP_ID_PM);
- u16 value;
-
- if (!pm)
- return 0;
- if (pci_read_config_word(dev, pm + PCI_PM_CTRL, &value))
- return 0;
- return value & PCI_PM_CTRL_PME_ENABLE;
-}
-
/* This driver supports yukon2 chipset only */
static const char *sky2_name(u8 chipid, char *buf, int sz)
{
@@ -4238,7 +4241,7 @@ static int __devinit sky2_probe(struct p
}
}
- wol_default = pci_wake_enabled(pdev) ? WAKE_MAGIC : 0;
+ wol_default = device_may_wakeup(&pdev->dev) ? WAKE_MAGIC : 0;
err = -ENOMEM;
hw = kzalloc(sizeof(*hw), GFP_KERNEL);
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