diff options
| author | Vaibhav Gupta <vaibhavgupta40@gmail.com> | 2020-05-18 20:32:14 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-05-19 15:32:24 -0700 |
| commit | a1eae9f677a694c97c232f8c1b3b826ec68a0c11 (patch) | |
| tree | f6c0e66295206a2dea3e1deac3c2899c20c72374 /drivers | |
| parent | 6ad70c7686d4ad14cbea4f9930037cabea0cdb7a (diff) | |
realtek/8139cp: 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.
The suspend callback enables/disables PCI wake
on the basis of "cp->wol_enabled" variable
which is unknown to PCI core. To utilise its
need, call device_set_wakeup_enable().
Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/realtek/8139cp.c | 25 |
1 files changed, 8 insertions, 17 deletions
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c index 60d342f82fb3..e291e6ac40cb 100644 --- a/drivers/net/ethernet/realtek/8139cp.c +++ b/drivers/net/ethernet/realtek/8139cp.c @@ -2054,10 +2054,9 @@ static void cp_remove_one (struct pci_dev *pdev) free_netdev(dev); } -#ifdef CONFIG_PM -static int cp_suspend (struct pci_dev *pdev, pm_message_t state) +static int __maybe_unused cp_suspend(struct device *device) { - struct net_device *dev = pci_get_drvdata(pdev); + struct net_device *dev = dev_get_drvdata(device); struct cp_private *cp = netdev_priv(dev); unsigned long flags; @@ -2075,16 +2074,14 @@ static int cp_suspend (struct pci_dev *pdev, pm_message_t state) spin_unlock_irqrestore (&cp->lock, flags); - pci_save_state(pdev); - pci_enable_wake(pdev, pci_choose_state(pdev, state), cp->wol_enabled); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); + device_set_wakeup_enable(device, cp->wol_enabled); return 0; } -static int cp_resume (struct pci_dev *pdev) +static int __maybe_unused cp_resume(struct device *device) { - struct net_device *dev = pci_get_drvdata (pdev); + struct net_device *dev = dev_get_drvdata(device); struct cp_private *cp = netdev_priv(dev); unsigned long flags; @@ -2093,10 +2090,6 @@ static int cp_resume (struct pci_dev *pdev) netif_device_attach (dev); - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - pci_enable_wake(pdev, PCI_D0, 0); - /* FIXME: sh*t may happen if the Rx ring buffer is depleted */ cp_init_rings_index (cp); cp_init_hw (cp); @@ -2111,7 +2104,6 @@ static int cp_resume (struct pci_dev *pdev) return 0; } -#endif /* CONFIG_PM */ static const struct pci_device_id cp_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_REALTEK, PCI_DEVICE_ID_REALTEK_8139), }, @@ -2120,15 +2112,14 @@ static const struct pci_device_id cp_pci_tbl[] = { }; MODULE_DEVICE_TABLE(pci, cp_pci_tbl); +static SIMPLE_DEV_PM_OPS(cp_pm_ops, cp_suspend, cp_resume); + static struct pci_driver cp_driver = { .name = DRV_NAME, .id_table = cp_pci_tbl, .probe = cp_init_one, .remove = cp_remove_one, -#ifdef CONFIG_PM - .resume = cp_resume, - .suspend = cp_suspend, -#endif + .driver.pm = &cp_pm_ops, }; module_pci_driver(cp_driver); |