PCI / PM: Avoid resuming PCI devices during system suspend

[linux-drm-fsl-dcu.git] / drivers / pci / pci.h

diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 8aff29a804ffa6e9ddaa30e2277d5d654f1df508..febb3db9f74262f77a61566911bb6a82e89c3a7e 100644 (file)
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -50,6 +50,10 @@ int pci_probe_reset_function(struct pci_dev *dev);
  *             for given device (the device's wake-up capability has to be
  *             enabled by @sleep_wake for this feature to work)
  *
+ * @need_resume: returns 'true' if the given device (which is currently
+ *             suspended) needs to be resumed to be configured for system
+ *             wakeup.
+ *
  * If given platform is generally capable of power managing PCI devices, all of
  * these callbacks are mandatory.
  */
@@ -59,6 +63,7 @@ struct pci_platform_pm_ops {
        pci_power_t (*choose_state)(struct pci_dev *dev);
        int (*sleep_wake)(struct pci_dev *dev, bool enable);
        int (*run_wake)(struct pci_dev *dev, bool enable);
+       bool (*need_resume)(struct pci_dev *dev);
 };
 
 int pci_set_platform_pm(struct pci_platform_pm_ops *ops);
@@ -67,6 +72,7 @@ void pci_power_up(struct pci_dev *dev);
 void pci_disable_enabled_device(struct pci_dev *dev);
 int pci_finish_runtime_suspend(struct pci_dev *dev);
 int __pci_pme_wakeup(struct pci_dev *dev, void *ign);
+bool pci_dev_keep_suspended(struct pci_dev *dev);
 void pci_config_pm_runtime_get(struct pci_dev *dev);
 void pci_config_pm_runtime_put(struct pci_dev *dev);
 void pci_pm_init(struct pci_dev *dev);