Documentation: charger: max14577: Document exported sysfs entry

Document the 'fast charge timer' setting exported by max14577 driver
through sysfs entry.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index 78c7baca3587..ad4fb90ab23d 100644
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -18,3 +18,17 @@ Description:
                 This file is writeable and can be used to set the assumed
                 battery 'full level'. As batteries age, this value has to be
                 amended over time.
+
+What:           /sys/class/power_supply/max14577-charger/device/fast_charge_timer
+Date:           July 2014
+KernelVersion:  3.18.0
+Contact:        Krzysztof Kozlowski <k.kozlowski@samsung.com>
+Description:
+                This entry shows and sets the maximum time the max14577
+                charger operates in fast-charge mode. When the timer expires
+                the device will terminate fast-charge mode (charging current
+                will drop to 0 A) and will trigger interrupt.
+
+                Valid values:
+                - 5, 6 or 7 (hours),
+                - 0: disabled.