提交 bb910a70 编写于 作者: R Rafael J. Wysocki 提交者: Jesse Barnes

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: NRafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: NJesse Barnes <jbarnes@virtuousgeek.org>
上级 64096c17
......@@ -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 */
......
Markdown is supported
0% .
You are about to add 0 people to the discussion. Proceed with caution.
先完成此消息的编辑!
想要评论请 注册