* -EIO if device does not support PCI PM.
* 0 if we can successfully change the power state.
*/
-int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t t) = NULL;
+int (*platform_pci_set_power_state)(struct pci_dev *dev, pci_power_t t);
int
pci_set_power_state(struct pci_dev *dev, pci_power_t state)
{
return 0;
}
-int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state) = NULL;
+int (*platform_pci_choose_state)(struct pci_dev *dev, pm_message_t state);
/**
* pci_choose_state - Choose the power state of a PCI device
if (platform_pci_choose_state) {
ret = platform_pci_choose_state(dev, state);
if (ret >= 0)
- state = ret;
+ state.event = ret;
}
- switch (state) {
- case 0: return PCI_D0;
- case 3: return PCI_D3hot;
+
+ switch (state.event) {
+ case PM_EVENT_ON:
+ return PCI_D0;
+ case PM_EVENT_FREEZE:
+ case PM_EVENT_SUSPEND:
+ return PCI_D3hot;
default:
- printk("They asked me for state %d\n", state);
+ printk("They asked me for state %d\n", state.event);
BUG();
}
return PCI_D0;
/**
* pci_save_state - save the PCI configuration space of a device before suspending
* @dev: - PCI device that we're dealing with
- * @buffer: - buffer to hold config space context
- *
- * @buffer must be large enough to hold the entire PCI 2.2 config space
- * (>= 64 bytes).
*/
int
pci_save_state(struct pci_dev *dev)
/**
* pci_restore_state - Restore the saved state of a PCI device
* @dev: - PCI device that we're dealing with
- * @buffer: - saved PCI config space
- *
*/
int
pci_restore_state(struct pci_dev *dev)