static int scsi_runtime_idle(struct device *dev)
{
dev_dbg(dev, "scsi_runtime_idle\n");
/* Insert hooks here for targets, hosts, and transport classes */
if (scsi_is_sdev_device(dev)) {
pm_runtime_mark_last_busy(dev);
pm_runtime_autosuspend(dev);
return -EBUSY;
}
return 0;
}
static int mei_me_pm_runtime_idle(struct device *device)
{
struct pci_dev *pdev = to_pci_dev(device);
struct mei_device *dev;
dev_dbg(&pdev->dev, "rpm: me: runtime_idle\n");
dev = pci_get_drvdata(pdev);
if (!dev)
return -ENODEV;
if (mei_write_is_idle(dev))
pm_runtime_autosuspend(device);
return -EBUSY;
}
/**
* pm_generic_runtime_idle - Generic runtime idle callback for subsystems.
* @dev: Device to handle.
*
* If PM operations are defined for the @dev's driver and they include
* ->runtime_idle(), execute it and return its error code, if nonzero.
* Otherwise, execute pm_runtime_suspend() for the device and return 0.
*/
int pm_generic_runtime_idle(struct device *dev)
{
const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL;
if (pm && pm->runtime_idle) {
int ret = pm->runtime_idle(dev);
if (ret)
return ret;
}
if (dev->power.use_autosuspend)
pm_runtime_autosuspend(dev);
else
pm_runtime_suspend(dev);
return 0;
}
static int dwc3_runtime_idle(struct device *dev)
{
struct dwc3 *dwc = dev_get_drvdata(dev);
switch (dwc->current_dr_role) {
case DWC3_GCTL_PRTCAP_DEVICE:
if (dwc3_runtime_checks(dwc))
return -EBUSY;
break;
case DWC3_GCTL_PRTCAP_HOST:
default:
/* do nothing */
break;
}
pm_runtime_mark_last_busy(dev);
pm_runtime_autosuspend(dev);
return 0;
}
static int dwc3_runtime_idle(struct device *dev)
{
struct dwc3 *dwc = dev_get_drvdata(dev);
switch (dwc->dr_mode) {
case USB_DR_MODE_PERIPHERAL:
case USB_DR_MODE_OTG:
if (dwc3_runtime_checks(dwc))
return -EBUSY;
break;
case USB_DR_MODE_HOST:
default:
/* do nothing */
break;
}
pm_runtime_mark_last_busy(dev);
pm_runtime_autosuspend(dev);
return 0;
}
static int scsi_runtime_idle(struct device *dev)
{
int err;
dev_dbg(dev, "scsi_runtime_idle\n");
/* Insert hooks here for targets, hosts, and transport classes */
if (scsi_is_sdev_device(dev)) {
struct scsi_device *sdev = to_scsi_device(dev);
if (sdev->request_queue->dev) {
pm_runtime_mark_last_busy(dev);
err = pm_runtime_autosuspend(dev);
} else {
err = pm_runtime_suspend(dev);
}
} else {
err = pm_runtime_suspend(dev);
}
return err;
}