xref: /openbmc/linux/Documentation/devicetree/bindings/iio/adc/ti,palmas-gpadc.yaml (revision a612130c)

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

title: Palmas general purpose ADC IP block

maintainers:
  - Tony Lindgren <tony@atomide.com>

description: |
  This ADC is often used to provide channels via the io-channels
  consumer framework.
  Channels list:
    0 battery type
    1 battery temp NTC (optional current source)
    2 GP
    3 temp (with ext. diode, optional current source)
    4 GP
    5 GP
    6 VBAT_SENSE
    7 VCC_SENSE
    8 Backup Battery voltage
    9 external charger (VCHG)
    10 VBUS
    11 DC-DC current probe (how does this work?)
    12 internal die temp
    13 internal die temp
    14 USB ID pin voltage
    15 test network

properties:
  compatible:
    const: ti,palmas-gpadc

  interrupts:
    minItems: 1
    maxItems: 3

  "#io-channel-cells":
    const: 1

  ti,channel0-current-microamp:
    description: Channel 0 current in uA.
    enum:
      - 0
      - 5
      - 15
      - 20

  ti,channel3-current-microamp:
    description: Channel 3 current in uA.
    enum:
      - 0
      - 10
      - 400
      - 800

  ti,enable-extended-delay:
    $ref: /schemas/types.yaml#/definitions/flag
    description: Enable extended delay.

additionalProperties: false

required:
  - compatible
  - "#io-channel-cells"

examples:
  - |
    #include <dt-bindings/clock/mt8183-clk.h>
    pmic {
        compatible = "ti,twl6035-pmic", "ti,palmas-pmic";
        adc {
            compatible = "ti,palmas-gpadc";
            interrupts = <18 0>,
                         <16 0>,
                         <17 0>;
            #io-channel-cells = <1>;
            ti,channel0-current-microamp = <5>;
            ti,channel3-current-microamp = <10>;
        };
    };
...