[PATCH -v2 4/4] PCI/PM: Add ABI document for sysfs file d3cold_allowed
From: Huang Ying <hidden>
Date: 2012-08-06 01:34:41
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This patch adds ABI document for the following sysfs file: /sys/bus/pci/devices/.../d3cold_allowed Signed-off-by: Huang Ying <redacted> Acked-by: Rafael J. Wysocki <redacted> --- 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 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.