dt-bindings: iio: light: vcnl4000: add regulators

These sensors can accept 2 supplies - one for the sensor and one for IR
LED [1]. Add supply properties for the sensor - 2 for the sensors and
one external, for their open drain interrupt line, to ensure the sensor
is powered on before proceeding with setup.

[1] https://www.vishay.com/docs/84274/vcnl4040.pdf

Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Erikas Bitovtas <xerikasxx@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
index 2ba4d5de4ec4..516afef7a545 100644
--- a/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
+++ b/Documentation/devicetree/bindings/iio/light/vishay,vcnl4000.yaml
@@ -33,6 +33,17 @@ properties:
   interrupts:
     maxItems: 1
 
+  vdd-supply:
+    description: Regulator providing power to the "VDD" pin.
+
+  vio-supply:
+    description: Regulator providing power for pull-up of the I/O lines.
+      Does not connect to the sensor directly, but is needed for the
+      correct operation of the I2C and interrupt lines.
+
+  vled-supply:
+    description: Regulator providing power to the IR anode pin.
+
   reg:
     maxItems: 1
 
@@ -54,6 +65,9 @@ examples:
             compatible = "vishay,vcnl4200";
             reg = <0x51>;
             proximity-near-level = <220>;
+            vdd-supply = <&reg_vdd>;
+            vio-supply = <&reg_vio>;
+            vled-supply = <&reg_vled>;
         };
     };
 ...