From: Huang Ying Date: Wed, 8 Aug 2012 01:07:41 +0000 (+0800) Subject: PCI/PM: Add ABI document for sysfs file d3cold_allowed X-Git-Tag: firefly_0821_release~3680^2~2122^2~1 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=046c6531b60e8b9eabf47820a06161338a612167;p=firefly-linux-kernel-4.4.55.git PCI/PM: Add ABI document for sysfs file d3cold_allowed This patch adds ABI document for the following sysfs file: /sys/bus/pci/devices/.../d3cold_allowed Signed-off-by: Huang Ying Signed-off-by: Bjorn Helgaas Acked-by: Rafael J. Wysocki --- diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 34f51100f029..dff1f48d252d 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 +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.