Displaying 2 results from an estimated 2 matches for "__pci_enable_device_flags".
2011 Feb 28
12
[RFC PATCH] set current_state to D0 in register_slot
...9;t support power management (pm_cap == 0) but it is
acpi_pci_power_manageable() because there is a _PS0 method declared for
it and _EJ0 is also declared for the slot then nobody is going to set
current_state = PCI_D0 for this device. This is what I think it is
happening:
pci_enable_device
|
__pci_enable_device_flags
/* here we do not set current_state because !pm_cap */
|
do_pci_enable_device
|
pci_set_power_state
|
__pci_start_power_transition
|
pci_platform_power_transition
/* platform_pci_power_manageable() calls acpi_pci_power_manageable that
* returns true */
|
platform_pci_set_power_...
2012 Mar 05
3
Lose XHCI Device on HP Ivybridge While Resuming on Battery
After resuming more than once on battery these HP Ivybridge laptops, the XHCI devices stop working. Have anyone seen this before? I wanted to check before diving in deeper. Let me know if you have any ideas. Thanks!
Facts
- Xen 4.0.3, Linux 3.2.7 PVOPs
- Happens on HP Ivybridge. Doesn''t happen on very similar HP Sandybridge Clash system.
- Happens on battery, but not on AC.
-