Merge tag 'docs-5.11-2' of git://git.lwn.net/linux

[linux-2.6-microblaze.git] / Documentation / ABI / testing / sysfs-bus-pci

diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index 77ad9ec..25c9c39 100644 (file)
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -366,3 +366,12 @@ Contact:   Heiner Kallweit <hkallweit1@gmail.com>
 Description:   If ASPM is supported for an endpoint, these files can be
                used to disable or enable the individual power management
                states. Write y/1/on to enable, n/0/off to disable.
+
+What:          /sys/bus/pci/devices/.../power_state
+Date:          November 2020
+Contact:       Linux PCI developers <linux-pci@vger.kernel.org>
+Description:
+               This file contains the current PCI power state of the device.
+               The value comes from the PCI kernel device state and can be one
+               of: "unknown", "error", "D0", D1", "D2", "D3hot", "D3cold".
+               The file is read only.