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path: root/drivers/pci/pci.h
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Diffstat (limited to 'drivers/pci/pci.h')
-rw-r--r--drivers/pci/pci.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index a814bbb80fcb..9730c474b016 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -82,6 +82,8 @@ void pci_pm_init(struct pci_dev *dev);
void pci_ea_init(struct pci_dev *dev);
void pci_allocate_cap_save_buffers(struct pci_dev *dev);
void pci_free_cap_save_buffers(struct pci_dev *dev);
+void pci_bridge_d3_device_changed(struct pci_dev *dev);
+void pci_bridge_d3_device_removed(struct pci_dev *dev);
static inline void pci_wakeup_event(struct pci_dev *dev)
{
@@ -94,6 +96,15 @@ static inline bool pci_has_subordinate(struct pci_dev *pci_dev)
return !!(pci_dev->subordinate);
}
+static inline bool pci_power_manageable(struct pci_dev *pci_dev)
+{
+ /*
+ * Currently we allow normal PCI devices and PCI bridges transition
+ * into D3 if their bridge_d3 is set.
+ */
+ return !pci_has_subordinate(pci_dev) || pci_dev->bridge_d3;
+}
+
struct pci_vpd_ops {
ssize_t (*read)(struct pci_dev *dev, loff_t pos, size_t count, void *buf);
ssize_t (*write)(struct pci_dev *dev, loff_t pos, size_t count, const void *buf);