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* [RFC] PCI/PM: Add ABI document for sysfs file d3cold_allowed
@ 2012-07-27  8:07 Huang Ying
  2012-07-27 19:07 ` Rafael J. Wysocki
  2012-07-30 18:03 ` Don Dutile
  0 siblings, 2 replies; 5+ messages in thread
From: Huang Ying @ 2012-07-27  8:07 UTC (permalink / raw)
  To: Bjorn Helgaas
  Cc: linux-kernel, linux-pci, linux-pm, Rafael J. Wysocki, Bjorn Mork,
	Huang Ying

This patch adds ABI document for the following sysfs file:

/sys/bus/pci/devices/.../d3cold_allowed

Signed-off-by: Huang Ying <ying.huang@intel.com>
---
 Documentation/ABI/testing/sysfs-bus-pci |   12 ++++++++++++
 1 file changed, 12 insertions(+)

--- 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 requirement are
+		satisfied too.  Reading this attribute will show the current
+		value of d3cold_allowed bit.  Writting this attribute will set
+		the value of d3cold_allowed bit.

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2012-07-31 13:50 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-07-27  8:07 [RFC] PCI/PM: Add ABI document for sysfs file d3cold_allowed Huang Ying
2012-07-27 19:07 ` Rafael J. Wysocki
2012-07-30 18:03 ` Don Dutile
2012-07-31  3:12   ` Huang Ying
2012-07-31 13:50     ` Don Dutile

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