diff options
Diffstat (limited to 'drivers/net/wireless/ath/wil6210/pcie_bus.c')
| -rw-r--r-- | drivers/net/wireless/ath/wil6210/pcie_bus.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c index c37838dfe38a..feff1ef10fb3 100644 --- a/drivers/net/wireless/ath/wil6210/pcie_bus.c +++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c @@ -259,11 +259,80 @@ static const struct pci_device_id wil6210_pcie_ids[] = { }; MODULE_DEVICE_TABLE(pci, wil6210_pcie_ids); +#ifdef CONFIG_PM + +static int wil6210_suspend(struct device *dev, bool is_runtime) +{ + int rc = 0; + struct pci_dev *pdev = to_pci_dev(dev); + struct wil6210_priv *wil = pci_get_drvdata(pdev); + + wil_dbg_pm(wil, "%s(%s)\n", __func__, + is_runtime ? "runtime" : "system"); + + rc = wil_can_suspend(wil, is_runtime); + if (rc) + goto out; + + rc = wil_suspend(wil, is_runtime); + if (rc) + goto out; + + /* TODO: how do I bring card in low power state? */ + + /* disable bus mastering */ + pci_clear_master(pdev); + /* PCI will call pci_save_state(pdev) and pci_prepare_to_sleep(pdev) */ + +out: + return rc; +} + +static int wil6210_resume(struct device *dev, bool is_runtime) +{ + int rc = 0; + struct pci_dev *pdev = to_pci_dev(dev); + struct wil6210_priv *wil = pci_get_drvdata(pdev); + + wil_dbg_pm(wil, "%s(%s)\n", __func__, + is_runtime ? "runtime" : "system"); + + /* allow master */ + pci_set_master(pdev); + + rc = wil_resume(wil, is_runtime); + if (rc) + pci_clear_master(pdev); + + return rc; +} + +#ifdef CONFIG_PM_SLEEP +static int wil6210_pm_suspend(struct device *dev) +{ + return wil6210_suspend(dev, false); +} + +static int wil6210_pm_resume(struct device *dev) +{ + return wil6210_resume(dev, false); +} +#endif /* CONFIG_PM_SLEEP */ + +#endif /* CONFIG_PM */ + +static const struct dev_pm_ops wil6210_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(wil6210_pm_suspend, wil6210_pm_resume) +}; + static struct pci_driver wil6210_driver = { .probe = wil_pcie_probe, .remove = wil_pcie_remove, .id_table = wil6210_pcie_ids, .name = WIL_NAME, + .driver = { + .pm = &wil6210_pm_ops, + }, }; static int __init wil6210_driver_init(void) |