regulator/mfd: max8998: Document charger regulator

max8998 has a current regulator for control of its charging
current.  Document it.

Signed-off-by: Jonathan Bakker <xc-racer2@live.ca>
Link: https://lore.kernel.org/r/BN6PR04MB06600D05B27BAE69970E3C30A3BA0@BN6PR04MB0660.namprd04.prod.outlook.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Documentation/devicetree/bindings/mfd/max8998.txt
index 5f2f07c..4ed5218 100644 (file)
--- a/Documentation/devicetree/bindings/mfd/max8998.txt
+++ b/Documentation/devicetree/bindings/mfd/max8998.txt
@@ -73,6 +73,8 @@ number as described in MAX8998 datasheet.
        - ESAFEOUT1: (ldo19)
        - ESAFEOUT2: (ld020)
 
+       - CHARGER: main battery charger current control
+
 Standard regulator bindings are used inside regulator subnodes. Check
   Documentation/devicetree/bindings/regulator/regulator.txt
 for more details.
@@ -113,5 +115,11 @@ Example:
                                regulator-always-on;
                                regulator-boot-on;
                        };
+
+                       charger_reg: CHARGER {
+                               regulator-name = "CHARGER";
+                               regulator-min-microamp = <90000>;
+                               regulator-max-microamp = <800000>;
+                       };
                };
        };