power: supply: core: Add missing documentation for CHARGE_CONTROL_* properties

The existing POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT and
POWER_SUPPLY_PROP_CHARGE_CONTROL_LIMIT_MAX properties
don't have documentation. I add that documentation here.

v5 changes:
- Split this commit out from the previous two commits.

Signed-off-by: Nick Crews <ncrews@chromium.org>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index a5b144f61de8..b77e30b9014e 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -114,6 +114,25 @@ Description:
                 Access: Read
                 Valid values: Represented in microamps
 
+What:           /sys/class/power_supply/<supply_name>/charge_control_limit
+Date:           Oct 2012
+Contact:        linux-pm@vger.kernel.org
+Description:
+                Maximum allowable charging current. Used for charge rate
+                throttling for thermal cooling or improving battery health.
+
+                Access: Read, Write
+                Valid values: Represented in microamps
+
+What:           /sys/class/power_supply/<supply_name>/charge_control_limit_max
+Date:           Oct 2012
+Contact:        linux-pm@vger.kernel.org
+Description:
+                Maximum legal value for the charge_control_limit property.
+
+                Access: Read
+                Valid values: Represented in microamps
+
 What:           /sys/class/power_supply/<supply_name>/charge_control_start_threshold
 Date:           April 2019
 Contact:        linux-pm@vger.kernel.org