Documentation/devicetree/bindings/iio/light/sharp,gp2ap002.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/iio/light/sharp,gp2ap002.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Sharp GP2AP002A00F and GP2AP002S00F proximity and ambient light sensors
   8
   9 maintainers:
  10   - Linus Walleij <linus.walleij@linaro.org>
  11
  12 description: |
  13   Proximity and ambient light sensor with IR LED for the proximity
  14   sensing and an analog output for light intensity. The ambient light
  15   sensor output is not available on the GP2AP002S00F variant.
  16
  17 properties:
  18   compatible:
  19     enum:
  20       - sharp,gp2ap002a00f
  21       - sharp,gp2ap002s00f
  22
  23   reg:
  24     maxItems: 1
  25
  26   interrupts:
  27     maxItems: 1
  28     description: an interrupt for proximity, usually a GPIO line
  29
  30   vdd-supply:
  31     description: VDD power supply a phandle to a regulator
  32
  33   vio-supply:
  34     description: VIO power supply a phandle to a regulator
  35
  36   io-channels:
  37     maxItems: 1
  38     description: ALSOUT ADC channel to read the ambient light
  39
  40   io-channel-names:
  41     const: alsout
  42
  43   sharp,proximity-far-hysteresis:
  44     $ref: /schemas/types.yaml#/definitions/uint8
  45     description: |
  46       Hysteresis setting for "far" object detection, this setting is
  47       device-unique and adjust the optical setting for proximity detection
  48       of a "far away" object in front of the sensor.
  49
  50   sharp,proximity-close-hysteresis:
  51     $ref: /schemas/types.yaml#/definitions/uint8
  52     description: |
  53       Hysteresis setting for "close" object detection, this setting is
  54       device-unique and adjust the optical setting for proximity detection
  55       of a "close" object in front of the sensor.
  56
  57 required:
  58   - compatible
  59   - reg
  60   - interrupts
  61   - sharp,proximity-far-hysteresis
  62   - sharp,proximity-close-hysteresis
  63
  64 examples:
  65   - |
  66     #include <dt-bindings/interrupt-controller/irq.h>
  67
  68     i2c {
  69       #address-cells = <1>;
  70       #size-cells = <0>;
  71
  72       light-sensor@44 {
  73         compatible = "sharp,gp2ap002a00f";
  74         reg = <0x44>;
  75         interrupts = <18 IRQ_TYPE_EDGE_FALLING>;
  76         vdd-supply = <&vdd_regulator>;
  77         vio-supply = <&vio_regulator>;
  78         io-channels = <&adc_channel>;
  79         io-channel-names = "alsout";
  80         sharp,proximity-far-hysteresis = /bits/ 8 <0x2f>;
  81         sharp,proximity-close-hysteresis = /bits/ 8 <0x0f>;
  82       };
  83     };
  84
  85 ...