From: Huang Ying <ying.huang@intel.com>
To: Bjorn Helgaas <bhelgaas@google.com>
Cc: linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org,
linux-pm@vger.kernel.org, "Rafael J. Wysocki" <rjw@sisk.pl>,
Bjorn Mork <bjorn@mork.no>, Huang Ying <ying.huang@intel.com>
Subject: [RFC] PCI/PM: Add ABI document for sysfs file d3cold_allowed
Date: Fri, 27 Jul 2012 16:07:34 +0800 [thread overview]
Message-ID: <1343376454-28520-1-git-send-email-ying.huang@intel.com> (raw)
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.
next reply other threads:[~2012-07-27 8:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-27 8:07 Huang Ying [this message]
2012-07-27 19:07 ` [RFC] PCI/PM: Add ABI document for sysfs file d3cold_allowed 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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