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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-09-06 17:15:49 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-09-06 17:15:49 -0700 |
| commit | f8b9cf0f319af81f617606bdc90a4984ae3b3ca2 (patch) | |
| tree | fb79ca2400b523b88e56a03a5ea98ea4a6a12db8 /Documentation | |
| parent | eeea3ac912207dcf759b95b2b4c36f96bce583bf (diff) | |
| parent | 0ff9514b579b4f2f3e6038cd961ce64c224c3c73 (diff) | |
Merge tag '3.6-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"Power management
- PCI/PM: Enable D3/D3cold by default for most devices
- PCI/PM: Keep parent bridge active when probing device
- PCI/PM: Fix config reg access for D3cold and bridge suspending
- PCI/PM: Add ABI document for sysfs file d3cold_allowed
Core
- PCI: Don't print anything while decoding is disabled"
* tag '3.6-pci-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
PCI: Don't print anything while decoding is disabled
PCI/PM: Add ABI document for sysfs file d3cold_allowed
PCI/PM: Fix config reg access for D3cold and bridge suspending
PCI/PM: Keep parent bridge active when probing device
PCI/PM: Enable D3/D3cold by default for most devices
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-pci | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 34f51100f02..dff1f48d252 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -210,3 +210,15 @@ Users: firmware assigned instance number of the PCI device that can help in understanding the firmware intended order of the PCI device. + +What: /sys/bus/pci/devices/.../d3cold_allowed +Date: July 2012 +Contact: Huang Ying <ying.huang@intel.com> +Description: + d3cold_allowed is bit to control whether the corresponding PCI + device can be put into D3Cold state. If it is cleared, the + device will never be put into D3Cold state. If it is set, the + device may be put into D3Cold state if other requirements are + satisfied too. Reading this attribute will show the current + value of d3cold_allowed bit. Writing this attribute will set + the value of d3cold_allowed bit. |