c689a62b67
With the support of generic PM callbacks, drivers no longer need to use legacy .suspend() and .resume() in which they had to maintain PCI states changes and device's power state themselves. The required operations are done by PCI core. PCI drivers are not expected to invoke PCI helper functions like pci_save/restore_state(), pci_enable/disable_device(), pci_set_power_state(), etc. Their tasks are completed by PCI core itself. Compile-tested only. Signed-off-by: Vaibhav Gupta <vaibhavgupta40@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200624174048.64754-1-vaibhavgupta40@gmail.com
55 lines
1.2 KiB
C
55 lines
1.2 KiB
C
/* orinoco_pci.h
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*
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* Common code for all Orinoco drivers for PCI devices, including
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* both native PCI and PCMCIA-to-PCI bridges.
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*
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* Copyright (C) 2005, Pavel Roskin.
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* See main.c for license.
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*/
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#ifndef _ORINOCO_PCI_H
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#define _ORINOCO_PCI_H
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#include <linux/netdevice.h>
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/* Driver specific data */
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struct orinoco_pci_card {
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void __iomem *bridge_io;
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void __iomem *attr_io;
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};
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static int __maybe_unused orinoco_pci_suspend(struct device *dev_d)
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{
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struct pci_dev *pdev = to_pci_dev(dev_d);
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struct orinoco_private *priv = pci_get_drvdata(pdev);
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orinoco_down(priv);
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free_irq(pdev->irq, priv);
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return 0;
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}
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static int __maybe_unused orinoco_pci_resume(struct device *dev_d)
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{
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struct pci_dev *pdev = to_pci_dev(dev_d);
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struct orinoco_private *priv = pci_get_drvdata(pdev);
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struct net_device *dev = priv->ndev;
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int err;
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err = request_irq(pdev->irq, orinoco_interrupt, IRQF_SHARED,
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dev->name, priv);
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if (err) {
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printk(KERN_ERR "%s: cannot re-allocate IRQ on resume\n",
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dev->name);
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return -EBUSY;
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}
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return orinoco_up(priv);
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}
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static SIMPLE_DEV_PM_OPS(orinoco_pci_pm_ops,
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orinoco_pci_suspend,
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orinoco_pci_resume);
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#endif /* _ORINOCO_PCI_H */
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