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bbswitch_dev: use autosuspend to avoid sleeping too fast

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This commit is contained in:
Peter Wu 2016-05-23 19:50:37 +02:00
parent fd774b1f5e
commit fb3d5a614a
1 changed files with 5 additions and 1 deletions
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6
bbswitch_dev.c
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@ -26,14 +26,18 @@ static int bbswitch_pci_probe(struct pci_dev *dev, const struct pci_device_id *i
pci_ignore_hotplug(dev); pci_ignore_hotplug(dev);
pm_runtime_set_active(&dev->dev); /* clear any errors */ pm_runtime_set_active(&dev->dev); /* clear any errors */
/* Use autosuspend to avoid lspci waking up the device multiple times. */
pm_runtime_set_autosuspend_delay(&dev->dev, 2000);
pm_runtime_use_autosuspend(&dev->dev);
pm_runtime_allow(&dev->dev); pm_runtime_allow(&dev->dev);
pm_runtime_put_noidle(&dev->dev); pm_runtime_put_autosuspend(&dev->dev);
return 0; return 0;
} }
static void bbswitch_pci_remove(struct pci_dev *dev) static void bbswitch_pci_remove(struct pci_dev *dev)
{ {
pm_runtime_get_noresume(&dev->dev); pm_runtime_get_noresume(&dev->dev);
pm_runtime_dont_use_autosuspend(&dev->dev);
} }
static int bbswitch_runtime_suspend(struct device *dev) { static int bbswitch_runtime_suspend(struct device *dev) {