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authorRafael J. Wysocki <rjw@sisk.pl>2010-02-27 21:37:37 +0100
committerJesse Barnes <jbarnes@virtuousgeek.org>2010-03-05 15:09:39 -0800
commitbb910a7040e90a0ca3d3e8245d6d5c128a5d1287 (patch)
tree1ee24e8ff4d4d1410db3af01a11193ce7595a980 /drivers/pci
parent64096c17417380d8a472d096645f4cbc9406c987 (diff)
downloadop-kernel-dev-bb910a7040e90a0ca3d3e8245d6d5c128a5d1287.zip
op-kernel-dev-bb910a7040e90a0ca3d3e8245d6d5c128a5d1287.tar.gz
PCI/PM Runtime: Make runtime PM of PCI devices inactive by default
Make the run-time power management of PCI devices be inactive by default by calling pm_runtime_forbid() for each PCI device during its initialization. This setting may be overriden by the user space with the help of the /sys/devices/.../power/control interface. That's necessary to avoid breakage on systems where ACPI-based wake-up is known to fail for some devices. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci')
-rw-r--r--drivers/pci/pci.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 5b548ae..6e100ae7 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1540,8 +1540,10 @@ void pci_pm_init(struct pci_dev *dev)
int pm;
u16 pmc;
+ pm_runtime_forbid(&dev->dev);
device_enable_async_suspend(&dev->dev);
dev->wakeup_prepared = false;
+
dev->pm_cap = 0;
/* find PCI PM capability in list */
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