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path: root/drivers/pci/pci.c
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Diffstat (limited to 'drivers/pci/pci.c')
-rw-r--r--drivers/pci/pci.c25
1 files changed, 3 insertions, 22 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 710c8a29be0d..b714d787bddd 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -937,14 +937,13 @@ pci_save_state(struct pci_dev *dev)
937 * pci_restore_state - Restore the saved state of a PCI device 937 * pci_restore_state - Restore the saved state of a PCI device
938 * @dev: - PCI device that we're dealing with 938 * @dev: - PCI device that we're dealing with
939 */ 939 */
940int 940void pci_restore_state(struct pci_dev *dev)
941pci_restore_state(struct pci_dev *dev)
942{ 941{
943 int i; 942 int i;
944 u32 val; 943 u32 val;
945 944
946 if (!dev->state_saved) 945 if (!dev->state_saved)
947 return 0; 946 return;
948 947
949 /* PCI Express register must be restored first */ 948 /* PCI Express register must be restored first */
950 pci_restore_pcie_state(dev); 949 pci_restore_pcie_state(dev);
@@ -968,8 +967,6 @@ pci_restore_state(struct pci_dev *dev)
968 pci_restore_iov_state(dev); 967 pci_restore_iov_state(dev);
969 968
970 dev->state_saved = false; 969 dev->state_saved = false;
971
972 return 0;
973} 970}
974 971
975static int do_pci_enable_device(struct pci_dev *dev, int bars) 972static int do_pci_enable_device(struct pci_dev *dev, int bars)
@@ -1300,22 +1297,6 @@ bool pci_check_pme_status(struct pci_dev *dev)
1300 return ret; 1297 return ret;
1301} 1298}
1302 1299
1303/*
1304 * Time to wait before the system can be put into a sleep state after reporting
1305 * a wakeup event signaled by a PCI device.
1306 */
1307#define PCI_WAKEUP_COOLDOWN 100
1308
1309/**
1310 * pci_wakeup_event - Report a wakeup event related to a given PCI device.
1311 * @dev: Device to report the wakeup event for.
1312 */
1313void pci_wakeup_event(struct pci_dev *dev)
1314{
1315 if (device_may_wakeup(&dev->dev))
1316 pm_wakeup_event(&dev->dev, PCI_WAKEUP_COOLDOWN);
1317}
1318
1319/** 1300/**
1320 * pci_pme_wakeup - Wake up a PCI device if its PME Status bit is set. 1301 * pci_pme_wakeup - Wake up a PCI device if its PME Status bit is set.
1321 * @dev: Device to handle. 1302 * @dev: Device to handle.
@@ -1327,8 +1308,8 @@ void pci_wakeup_event(struct pci_dev *dev)
1327static int pci_pme_wakeup(struct pci_dev *dev, void *ign) 1308static int pci_pme_wakeup(struct pci_dev *dev, void *ign)
1328{ 1309{
1329 if (pci_check_pme_status(dev)) { 1310 if (pci_check_pme_status(dev)) {
1330 pm_request_resume(&dev->dev);
1331 pci_wakeup_event(dev); 1311 pci_wakeup_event(dev);
1312 pm_request_resume(&dev->dev);
1332 } 1313 }
1333 return 0; 1314 return 0;
1334} 1315}