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| author | Denis Kirjanov <dkirjanov@kernel.org> | 2010-09-11 01:23:13 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-14 05:02:50 +0200 |
| commit | 61a21455ee27dccdd286f61aea611da5e70b47bf (patch) | |
| tree | 252a299206b91d0dee1b4d81e9e788bf51f66278 /drivers/net/sundance.c | |
| parent | flow: better memory management (diff) | |
| download | linux-61a21455ee27dccdd286f61aea611da5e70b47bf.tar.xz linux-61a21455ee27dccdd286f61aea611da5e70b47bf.zip | |
sundance: Add power management hooks
This patch to adds support for PM hooks into sundance driver
Signed-off-by: Denis Kirjanov <dkirjanov@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sundance.c')
| -rw-r--r-- | drivers/net/sundance.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/drivers/net/sundance.c b/drivers/net/sundance.c index 3fa949789b42..7dfdbee878e8 100644 --- a/drivers/net/sundance.c +++ b/drivers/net/sundance.c @@ -1757,11 +1757,59 @@ static void __devexit sundance_remove1 (struct pci_dev *pdev) } } +#ifdef CONFIG_PM + +static int sundance_suspend(struct pci_dev *pci_dev, pm_message_t state) +{ + struct net_device *dev = pci_get_drvdata(pci_dev); + + if (!netif_running(dev)) + return 0; + + netdev_close(dev); + netif_device_detach(dev); + + pci_save_state(pci_dev); + pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state)); + + return 0; +} + +static int sundance_resume(struct pci_dev *pci_dev) +{ + struct net_device *dev = pci_get_drvdata(pci_dev); + int err = 0; + + if (!netif_running(dev)) + return 0; + + pci_set_power_state(pci_dev, PCI_D0); + pci_restore_state(pci_dev); + + err = netdev_open(dev); + if (err) { + printk(KERN_ERR "%s: Can't resume interface!\n", + dev->name); + goto out; + } + + netif_device_attach(dev); + +out: + return err; +} + +#endif /* CONFIG_PM */ + static struct pci_driver sundance_driver = { .name = DRV_NAME, .id_table = sundance_pci_tbl, .probe = sundance_probe1, .remove = __devexit_p(sundance_remove1), +#ifdef CONFIG_PM + .suspend = sundance_suspend, + .resume = sundance_resume, +#endif /* CONFIG_PM */ }; static int __init sundance_init(void) |