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realtek/8139too: use generic power management 

compile-tested only

With legacy PM hooks, it was the responsibility
of a driver to manage PCI states and also
device's power state. The generic approach is
to let PCI core handle the work.

PCI core passes "struct device*" as an argument
to the .suspend() and .resume() callbacks. As
these callabcks work with "struct net_device*",
extract it from "struct device*" using
dev_get_drv_data().

Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vaibhav Gupta 2020-05-18 20:32:13 +05:30 committed by David S. Miller
parent f8e48fca49
commit 6ad70c7686
1 changed files with 7 additions and 19 deletions
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26
drivers/net/ethernet/realtek/8139too.c
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@ -2603,17 +2603,13 @@ static void rtl8139_set_rx_mode (struct net_device *dev)
spin_unlock_irqrestore (&tp->lock, flags);
}
#ifdef CONFIG_PM
static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state)
static int __maybe_unused rtl8139_suspend(struct device *device)
{
struct net_device *dev = pci_get_drvdata (pdev);
struct net_device *dev = dev_get_drvdata(device);
struct rtl8139_private *tp = netdev_priv(dev);
void __iomem *ioaddr = tp->mmio_addr;
unsigned long flags;
pci_save_state (pdev);
if (!netif_running (dev))
return 0;
@ -2631,38 +2627,30 @@ static int rtl8139_suspend (struct pci_dev *pdev, pm_message_t state)
spin_unlock_irqrestore (&tp->lock, flags);
pci_set_power_state (pdev, PCI_D3hot);
return 0;
}
static int rtl8139_resume (struct pci_dev *pdev)
static int __maybe_unused rtl8139_resume(struct device *device)
{
struct net_device *dev = pci_get_drvdata (pdev);
struct net_device *dev = dev_get_drvdata(device);
pci_restore_state (pdev);
if (!netif_running (dev))
return 0;
pci_set_power_state (pdev, PCI_D0);
rtl8139_init_ring (dev);
rtl8139_hw_start (dev);
netif_device_attach (dev);
return 0;
}
#endif /* CONFIG_PM */
static SIMPLE_DEV_PM_OPS(rtl8139_pm_ops, rtl8139_suspend, rtl8139_resume);
static struct pci_driver rtl8139_pci_driver = {
.name = DRV_NAME,
.id_table = rtl8139_pci_tbl,
.probe = rtl8139_init_one,
.remove = rtl8139_remove_one,
#ifdef CONFIG_PM
.suspend = rtl8139_suspend,
.resume = rtl8139_resume,
#endif /* CONFIG_PM */
.driver.pm = &rtl8139_pm_ops,
};