Documentation/ABI: sysfs-platform-ideapad-laptop: conservation_mode attribute

Document the conservation_mode attributes provided by the ideapad-laptop module.

Fixes: ade50296186a ("platform/x86: ideapad-laptop: Expose conservation mode switch")
Signed-off-by: Barnabás Pőcze <pobrn@protonmail.com>
Link: https://lore.kernel.org/r/20210203215403.290792-30-pobrn@protonmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
index 5ec0dee..4989ab2 100644 (file)
--- a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
+++ b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop
@@ -27,6 +27,15 @@ Description:
                        * 1 -> Switched On
                        * 0 -> Switched Off
 
+What:          /sys/bus/platform/devices/VPC2004:*/conservation_mode
+Date:          Aug 2017
+KernelVersion: 4.14
+Contact:       platform-driver-x86@vger.kernel.org
+Description:
+               Controls whether the conservation mode is enabled or not.
+               This feature limits the maximum battery charge percentage to
+               around 50-60% in order to prolong the lifetime of the battery.
+
 What:          /sys/bus/platform/devices/VPC2004:*/fn_lock
 Date:          May 2018
 KernelVersion: 4.18