/**
* acpi_subsys_complete - Finalize device's resume during system resume.
* @dev: Device to handle.
*/
void acpi_subsys_complete(struct device *dev)
{
/*
* If the device had been runtime-suspended before the system went into
* the sleep state it is going out of and it has never been resumed till
* now, resume it in case the firmware powered it up.
*/
if (dev->power.direct_complete)
pm_request_resume(dev);
}
static int usb_port_runtime_resume(struct device *dev)
{
struct usb_port *port_dev = to_usb_port(dev);
struct usb_device *hdev = to_usb_device(dev->parent->parent);
struct usb_interface *intf = to_usb_interface(dev->parent);
struct usb_hub *hub = usb_hub_to_struct_hub(hdev);
struct usb_device *udev = port_dev->child;
struct usb_port *peer = port_dev->peer;
int port1 = port_dev->portnum;
int retval;
if (!hub)
return -EINVAL;
if (hub->in_reset) {
set_bit(port1, hub->power_bits);
return 0;
}
/*
* Power on our usb3 peer before this usb2 port to prevent a usb3
* device from degrading to its usb2 connection
*/
if (!port_dev->is_superspeed && peer)
pm_runtime_get_sync(&peer->dev);
usb_autopm_get_interface(intf);
retval = usb_hub_set_port_power(hdev, hub, port1, true);
msleep(hub_power_on_good_delay(hub));
if (udev && !retval) {
/*
* Attempt to wait for usb hub port to be reconnected in order
* to make the resume procedure successful. The device may have
* disconnected while the port was powered off, so ignore the
* return status.
*/
retval = hub_port_debounce_be_connected(hub, port1);
if (retval < 0)
dev_dbg(&port_dev->dev, "can't get reconnection after setting port power on, status %d\n",
retval);
retval = 0;
/* Force the child awake to revalidate after the power loss. */
if (!test_and_set_bit(port1, hub->child_usage_bits)) {
pm_runtime_get_noresume(&port_dev->dev);
pm_request_resume(&udev->dev);
}
}
usb_autopm_put_interface(intf);
return retval;
}
/**
* pci_acpi_wake_dev - PCI device wakeup notification work function.
* @context: Device wakeup context.
*/
static void pci_acpi_wake_dev(struct acpi_device_wakeup_context *context)
{
struct pci_dev *pci_dev;
pci_dev = to_pci_dev(context->dev);
if (pci_dev->pme_poll)
pci_dev->pme_poll = false;
if (pci_dev->current_state == PCI_D3cold) {
pci_wakeup_event(pci_dev);
pm_request_resume(&pci_dev->dev);
return;
}
/* Clear PME Status if set. */
if (pci_dev->pme_support)
pci_check_pme_status(pci_dev);
pci_wakeup_event(pci_dev);
pm_request_resume(&pci_dev->dev);
pci_pme_wakeup_bus(pci_dev->subordinate);
}
/* Resume the device when all power resources in _PR0 are on */
static void acpi_power_on_device(struct acpi_power_managed_device *device)
{
struct acpi_device *acpi_dev;
acpi_handle handle = device->handle;
int state;
if (acpi_bus_get_device(handle, &acpi_dev))
return;
if(acpi_power_get_inferred_state(acpi_dev, &state))
return;
if (state == ACPI_STATE_D0 && pm_runtime_suspended(device->dev))
pm_request_resume(device->dev);
}
static enum MHI_STATUS process_wake_transition(
struct mhi_device_ctxt *mhi_dev_ctxt,
enum STATE_TRANSITION cur_work_item)
{
enum MHI_STATUS ret_val = MHI_STATUS_SUCCESS;
int r = 0;
mhi_log(MHI_MSG_INFO, "Entered\n");
__pm_stay_awake(&mhi_dev_ctxt->w_lock);
if (atomic_read(&mhi_dev_ctxt->flags.pending_ssr)) {
mhi_log(MHI_MSG_CRITICAL,
"Pending SSR, Ignoring.\n");
goto exit;
}
if (mhi_dev_ctxt->flags.mhi_initialized) {
r = pm_request_resume(&mhi_dev_ctxt->dev_info->plat_dev->dev);
mhi_log(MHI_MSG_VERBOSE,
"MHI is initialized, transitioning to M0, ret %d\n", r);
}
if (!mhi_dev_ctxt->flags.mhi_initialized) {
mhi_log(MHI_MSG_INFO,
"MHI is not initialized transitioning to base.\n");
ret_val = init_mhi_base_state(mhi_dev_ctxt);
if (MHI_STATUS_SUCCESS != ret_val)
mhi_log(MHI_MSG_CRITICAL,
"Failed to transition to base state %d.\n",
ret_val);
}
exit:
__pm_relax(&mhi_dev_ctxt->w_lock);
mhi_log(MHI_MSG_INFO, "Exited.\n");
return ret_val;
}
static int mmc_host_request_resume(struct device *dev)
{
return pm_request_resume(dev);
}
