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Subject[PATCH 3/3] dl2k: Implement suspend
Date
Add suspend/resume support to dl2k driver.
Tested on Asus NX1101 (IP1000A) and D-Link DGE-550T (DL-2000).

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
---
drivers/net/ethernet/dlink/dl2k.c | 46 +++++++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)

diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c
index 9e9baa0..b53dfa7 100644
--- a/drivers/net/ethernet/dlink/dl2k.c
+++ b/drivers/net/ethernet/dlink/dl2k.c
@@ -1824,11 +1824,57 @@ rio_remove1 (struct pci_dev *pdev)
}
}

+#ifdef CONFIG_PM
+static int rio_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct netdev_private *np = netdev_priv(dev);
+
+ pci_save_state(pdev);
+
+ if (netif_running(dev)) {
+ netif_device_detach(dev);
+ del_timer_sync(&np->timer);
+ rio_hw_stop(dev);
+ free_list(dev);
+ }
+
+ pci_set_power_state(pdev, PCI_D3hot);
+
+ return 0;
+}
+
+static int rio_resume(struct pci_dev *pdev)
+{
+ struct net_device *dev = pci_get_drvdata(pdev);
+ struct netdev_private *np = netdev_priv(dev);
+
+ pci_set_power_state(pdev, PCI_D0);
+ pci_restore_state(pdev);
+
+ if (netif_running(dev)) {
+ alloc_list(dev);
+ rio_hw_init(dev);
+ np->timer.expires = jiffies + 1 * HZ;
+ add_timer(&np->timer);
+ netif_device_attach(dev);
+ dl2k_enable_int(np);
+ }
+
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
static struct pci_driver rio_driver = {
.name = "dl2k",
.id_table = rio_pci_tbl,
.probe = rio_probe1,
.remove = rio_remove1,
+#ifdef CONFIG_PM
+ .suspend = rio_suspend,
+ .resume = rio_resume,
+#endif /* CONFIG_PM */
};

module_pci_driver(rio_driver);
--
Ondrej Zary


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