diff options
| author | Felipe Balbi | 2013-02-11 11:36:22 +0200 |
|---|---|---|
| committer | Felipe Balbi | 2013-03-18 11:17:03 +0200 |
| commit | 68907a77431f405c0e8e7031aa77aae03383c69d (patch) | |
| tree | baf64c32a496fc659dea945fba9f15530bdc61b3 | |
| parent | 0646caf754aa3ce55ef978d7f4a3e3d0aab7a187 (diff) | |
usb: dwc3: pci: add basic suspend/resume support
this patch adds basic PM support for the
PCI glue layer.
Signed-off-by: Felipe Balbi <balbi@ti.com>
| -rw-r--r-- | drivers/usb/dwc3/dwc3-pci.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c index e8d77689a322..227d4a7acad7 100644 --- a/drivers/usb/dwc3/dwc3-pci.c +++ b/drivers/usb/dwc3/dwc3-pci.c @@ -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>"); |