xref: /openbmc/linux/Documentation/devicetree/bindings/iio/light/upisemi,us5182.yaml (revision 28ffe8bf)

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/light/upisemi,us5182.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: UPISEMI us5182d I2C ALS and Proximity sensor

maintainers:
  - Jonathan Cameron <jic23@kernel.org>

properties:
  compatible:
    const: upisemi,usd5182

  reg:
    maxItems: 1

  upisemi,glass-coef:
    $ref: /schemas/types.yaml#/definitions/uint32
    description: |
      glass attenuation factor - compensation factor of resolution 1000
      for material transmittance.
    default: 1000

  upisemi,dark-ths:
    $ref: /schemas/types.yaml#/definitions/uint16-array
    minItems: 8
    maxItems: 8
    description:
      16-bit thresholds (adc counts) corresponding to every scale.

  upisemi,upper-dark-gain:
    $ref: /schemas/types.yaml#/definitions/uint8
    description: |
      8-bit dark gain compensation factor(4 int and 4 fractional bits - Q4.4)
      applied when light > threshold.
    default: 0

  upisemi,lower-dark-gain:
    $ref: /schemas/types.yaml#/definitions/uint8
    description: |
      8-bit dark gain compensation factor(4 int and 4 fractional bits - Q4.4)
      applied when light < threshold.
    default: 0x16

  upisemi,continuous:
    $ref: /schemas/types.yaml#/definitions/flag
    description: |
      This chip has two power modes: one-shot (chip takes one measurement and
      then shuts itself down) and continuous (chip takes continuous
      measurements). The one-shot mode is more power-friendly but the
      continuous mode may be more reliable. If this property is specified
      the continuous mode will be used instead of the default one-shot one for
      raw reads.

additionalProperties: false

required:
  - compatible
  - reg

examples:
  - |
    i2c {
        #address-cells = <1>;
        #size-cells = <0>;

        light-sensor@39 {
            compatible = "upisemi,usd5182";
            reg = <0x39>;
            upisemi,glass-coef = < 1000 >;
            upisemi,dark-ths = /bits/ 16 <170 200 512 512 800 2000 4000 8000>;
            upisemi,upper-dark-gain = /bits/ 8 <0x00>;
            upisemi,lower-dark-gain = /bits/ 8 <0x16>;
        };
    };
...