Adding documentation for low battery monitor properties:
- maxim,low-battery-dac-enable
- maxim,low-battery-mode

Signed-off-by: Mark Zhang <ma...@nvidia.com>
---
 Documentation/devicetree/bindings/mfd/max77620.txt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/Documentation/devicetree/bindings/mfd/max77620.txt 
b/Documentation/devicetree/bindings/mfd/max77620.txt
index 88825eaf2567..f5b298ccc929 100644
--- a/Documentation/devicetree/bindings/mfd/max77620.txt
+++ b/Documentation/devicetree/bindings/mfd/max77620.txt
@@ -142,6 +142,20 @@ Optional properties:
                        Device supports 100/1000/3000/6000 Ohms.
                        Default will be set to 1000 Ohm.
 
+Low-Battery Monitor:
+==================
+max77620 is able to monitor the main battery voltage and shutdown/reset the
+chip connected accordingly.
+
+Optional properties:
+       - maxim,low-battery-dac-enable: Enable low battery monitoring.
+                       Low battery monitoring will be disabled if missing
+                       this property.
+       - maxim,low-battery-mode: Shutdown or reset the chip.
+                       The value of this property is "shutdown" which means
+                       a global shutdown will be triggered. Any other values
+                       or missing this property causes a chip reset.
+
 Example:
 --------
 #include <dt-bindings/mfd/max77620.h>
-- 
2.19.2

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