dt-bindings: iio: sx9360: Add precharge resistor setting

Allow configure the resistance used during precharge.

Signed-off-by: Gwendal Grignou <[e-mail]>
Reviewed-by: Stephen Boyd <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jonathan Cameron <[e-mail]>

Documentation/devicetree/bindings/iio/proximity/semtech,sx9360.yaml

···
       UINT_MAX (4294967295) represents infinite. Other values
       represent 1-1/N.
 
+  semtech,input-precharge-resistor-ohms:
+    default: 0
+    multipleOf: 2000
+    minimum: 0
+    maximum: 30000
+    description:
+      Pre-charge input resistance in Ohm.
+
 required:
   - compatible
   - reg
···
         semtech,resolution = <256>;
         semtech,proxraw-strength = <2>;
         semtech,avg-pos-strength = <64>;
+        semtech,input-precharge-resistor-ohms = <4000>;
       };
     };