[PATCH v4 1/3] dt-bindings: iio: proximity: add Sharp GP2AP070S proximity sensor

The GP2AP070S is a proximity sensor designed and manufactured by Sharp
Corporation. Unlike the other GP2AP* schemas, this is strictly a
proximity sensor and NOT an ambient light sensor.

For power supplies, it expects two voltage supplies, one for core and
other for driving the infrared LED which is used to measure proximity
distance. However, some variants may not explicitly require a separate
regulator for the LED as they're able to draw power from the main
supply.

This chip has been used in production mobile devices such as the Samsung
Galaxy J6.

Signed-off-by: Kaustabh Chakraborty <[email protected]>
---
 .../bindings/iio/proximity/sharp,gp2ap070s.yaml    | 60 ++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/Documentation/devicetree/bindings/iio/proximity/sharp,gp2ap070s.yaml b/Documentation/devicetree/bindings/iio/proximity/sharp,gp2ap070s.yaml
new file mode 100644
index 000000000000..73f0abc1f09c
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/proximity/sharp,gp2ap070s.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/proximity/sharp,gp2ap070s.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sharp GP2AP070S Proximity sensor
+
+maintainers:
+  - Kaustabh Chakraborty <[email protected]>
+
+allOf:
+  - $ref: ../common.yaml#
+
+properties:
+  compatible:
+    const: sharp,gp2ap070s
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdd-supply:
+    description: Voltage supply for the internal circuitry
+
+  vled-supply:
+    description: Voltage supply for the IR LED
+
+  proximity-near-level: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - vdd-supply
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      proximity@39 {
+        compatible = "sharp,gp2ap070s";
+        reg = <0x39>;
+        interrupt-parent = <&gpio>;
+        interrupts = <1 IRQ_TYPE_EDGE_BOTH>;
+        vdd-supply = <&vdd_supply>;
+        vled-supply = <&vled_supply>;
+        proximity-near-level = <500>;
+      };
+    };
+
+...

-- 
2.54.0