dt-bindings: iio: sx9324: Add internal compensation resistor setting

Allow setting the internal resistor used for compensation.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220429220144.1476049-6-gwendal@chromium.orgSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Documentation/devicetree/bindings/iio/proximity/semtech,sx9324.yaml

@@ -126,6 +126,15 @@ properties:
       UINT_MAX (4294967295) represents infinite. Other values
       represent 1-1/N.
 
+  semtech,int-comp-resistor:
+    description:
+      Internal resistor setting for compensation.
+    enum:
+      - lowest
+      - low
+      - high
+      - highest
+
   semtech,input-precharge-resistor-ohms:
     default: 4000
     multipleOf: 2000
@@ -165,6 +174,7 @@ examples:
         semtech,ph01-proxraw-strength = <2>;
         semtech,ph23-proxraw-strength = <2>;
         semtech,avg-pos-strength = <64>;
+        semtech,int-comp-resistor = "lowest";
         semtech,input-precharge-resistor-ohms = <2000>;
       };
     };