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usb: dwc3: pci: add basic suspend/resume support

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this patch adds basic PM support for the
PCI glue layer.

Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Felipe Balbi 2013-02-11 11:36:22 +02:00
parent 0646caf754
commit 68907a7743
1 changed files with 38 additions and 0 deletions
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38
drivers/usb/dwc3/dwc3-pci.c
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@ -212,11 +212,49 @@ static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
};
MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
#ifdef CONFIG_PM
static int dwc3_pci_suspend(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
pci_disable_device(pci);
return 0;
}
static int dwc3_pci_resume(struct device *dev)
{
struct pci_dev *pci = to_pci_dev(dev);
int ret;
ret = pci_enable_device(pci);
if (ret) {
dev_err(dev, "can't re-enable device --> %d\n", ret);
return ret;
}
pci_set_master(pci);
return 0;
}
static const struct dev_pm_ops dwc3_pci_dev_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume)
};
#define DEV_PM_OPS (&dwc3_pci_dev_pm_ops)
#else
#define DEV_PM_OPS NULL
#endif /* CONFIG_PM */
static struct pci_driver dwc3_pci_driver = {
.name = "dwc3-pci",
.id_table = dwc3_pci_id_table,
.probe = dwc3_pci_probe,
.remove = dwc3_pci_remove,
.driver = {
.pm = DEV_PM_OPS,
},
};
MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");