path: root/Documentation/devicetree/bindings/mfd/stericsson,ab8500.yaml

# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mfd/stericsson,ab8500.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ST-Ericsson Analog Baseband AB8500 and AB8505

maintainers:
  - Linus Walleij <linus.walleij@linaro.org>

description:
  the AB8500 "Analog Baseband" is the mixed-signals integrated circuit
  handling power management (regulators), analog-to-digital conversion
  (ADC), battery charging, fuel gauging of the battery, battery-backed
  RTC, PWM, USB PHY and some GPIO lines in the ST-Ericsson U8500 platforms
  in connection with the DB8500 digital baseband. The DB8500 PRCMU
  communicates directly and autonomously with the AB8500 and thus it
  appears as a subnode of the DB8500 PRCMU. An altered version called
  AB8505 also exist, the difference in AB8505 is that some of the USB and
  USB charging handling has changed, and it has an embedded USB-to-serial
  converter. Most subblocks takes their interrupts directly from the
  AB8500 embedded interrupt controller.

properties:
  $nodename:
    pattern: '^ab850[05]$'

  compatible:
    enum:
      - stericsson,ab8500
      - stericsson,ab8505

  interrupts:
    maxItems: 1

  interrupt-controller: true

  '#interrupt-cells':
    const: 2

  # Some subnodes use a reg, some don't. Those that do use a single cell.
  '#address-cells':
    const: 1

  '#size-cells':
    const: 0

  clock-controller:
    description: Node describing the AB8500 clock controller. This
      provides the reference clock for the entire U8500 system and
      the DB8500 counterpart.
    type: object
    additionalProperties: false

    properties:
      compatible:
        const: stericsson,ab8500-clk

      '#clock-cells':
        const: 1

  gpio:
    description: Node describing the AB8500 GPIO controller. A few
      GPIO pins available for misc usage.
    type: object
    additionalProperties: false

    properties:
      compatible:
        enum:
          - stericsson,ab8500-gpio
          - stericsson,ab8505-gpio

      gpio-controller: true

      '#gpio-cells':
        const: 2

  rtc:
    description: Node describing the AB8500 battery-backed RTC.
    type: object
    additionalProperties: false

    properties:
      compatible:
        const: stericsson,ab8500-rtc

      interrupts:
        items:
          - description: 60 second interval alarm interrupt
          - description: RTC alarm

      interrupt-names:
        items:
          - const: 60S
          - const: ALARM

  adc:
    description: Node describing the AB8500 general purpose analog to digital
      converter, GPADC.
    type: object

    properties:
      compatible:
        const: stericsson,ab8500-gpadc

      # AB8505 only supports one (software) EOC interrupt
      interrupts:
        minItems: 1
        maxItems: 2

      interrupt-names: true

      vddadc-supply: true

      '#address-cells':
        const: 1

      '#size-cells':
        const: 0

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

    patternProperties:
      "^channel@[0-9a-f]+$":
        type: object
        $ref: ../iio/adc/adc.yaml#
        description: Represents each of the external channels which are
          connected to the ADC.

        properties:
          reg:
            items:
              minimum: 1
              maximum: 31

        required:
          - reg

        additionalProperties: false

    required:
      - compatible
      - interrupts
      - interrupt-names
      - vddadc-supply
      - '#address-cells'
      - '#size-cells'
      - '#io-channel-cells'

    additionalProperties: false

  thermal:
    description: Node describing the AB8500 thermal control block. All this block
      really does is to fire an interrupt when the die becomes 130 degrees Celsius
      in temperature.
    type: object

    properties:
      compatible:
        const: stericsson,abx500-temp

      interrupts:
        items:
          - description: Thermal warm warning interrupt

      interrupt-names:
        items:
          - const: ABX500_TEMP_WARM

    required:
      - compatible
      - interrupts
      - interrupt-names

    additionalProperties: false

  ab8500_fg:
    description: Node describing the AB8500 fuel gauge control block.
    type: object
    $ref: ../power/supply/stericsson,ab8500-fg.yaml

  ab8500_btemp:
    description: Node describing the AB8500 battery temperature control block.
    type: object
    $ref: ../power/supply/stericsson,ab8500-btemp.yaml

  ab8500_charger:
    description: Node describing the AB8500 battery charger control block.
    type: object
    $ref: ../power/supply/stericsson,ab8500-charger.yaml

  ab8500_chargalg:
    description: Node describing the AB8500 battery charger algorithm.
    type: object
    $ref: ../power/supply/stericsson,ab8500-chargalg.yaml

  phy:
    description: Node describing the AB8500 USB PHY control block.
    type: object

    properties:
      compatible:
        const: stericsson,ab8500-usb

      interrupts:
        items:
          - description: ID wakeup rising IRQ
          - description: ID wakeup falling IRQ
          - description: VBUS detection falling IRQ
          - description: VBUS detection rising IRQ
          - description: USB link status change IRQ
          - description: ADP probe plug IRQ
          - description: ADP probe unplug IRQ

      interrupt-names:
        items:
          - const: ID_WAKEUP_R
          - const: ID_WAKEUP_F
          - const: VBUS_DET_F
          - const: VBUS_DET_R
          - const: USB_LINK_STATUS
          - const: USB_ADP_PROBE_PLUG
          - const: USB_ADP_PROBE_UNPLUG

      vddulpivio18-supply: true
      v-ape-supply: true
      musb_1v8-supply: true

      clocks:
        items:
          - description: PRCMY system clock

      clock-names:
        items:
          - const: sysclk

      '#phy-cells':
        const: 0

    required:
      - compatible
      - interrupts
      - interrupt-names
      - vddulpivio18-supply
      - v-ape-supply
      - musb_1v8-supply
      - clocks
      - clock-names
      - '#phy-cells'

    additionalProperties: false

  key:
    description: Node describing the AB8500 power-on key control block.
    type: object

    properties:
      compatible:
        const: stericsson,ab8500-poweron-key

      interrupts:
        items:
          - description: ON key falling IRQ
          - description: ON key rising IRQ

      interrupt-names:
        items:
          - const: ONKEY_DBF
          - const: ONKEY_DBR

    required:
      - compatible
      - interrupts
      - interrupt-names

    additionalProperties: false

  ab8500-sysctrl:
    description: Node describing the AB8500 system control block.
    type: object

    properties:
      compatible:
        const: stericsson,ab8500-sysctrl

    required:
      - compatible

    additionalProperties: false

  codec:
    description: Node describing the AB8500 audio codec block.
    type: object

    properties:
      compatible:
        const: stericsson,ab8500-codec

      V-AUD-supply: true
      V-AMIC1-supply: true
      V-AMIC2-supply: true
      V-DMIC-supply: true

      clocks:
        items:
          - description: Audio system clock

      clock-names:
        items:
          - const: audioclk

      stericsson,earpeice-cmv:
        description: Earpeice voltage
        $ref: /schemas/types.yaml#/definitions/uint32
        enum: [ 950, 1100, 1270, 1580 ]

    required:
      - compatible

    additionalProperties: false

  regulator:
    description: Node describing the AB8500 internal regulators.
    type: object

    properties:
      compatible:
        enum:
          - stericsson,ab8500-regulator
          - stericsson,ab8505-regulator

      vin-supply:
        description: The regulator supplying all of the internal regulators
          with power.

      ab8500_ldo_aux1:
        description: The voltage for the auxilary LDO regulator 1
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_aux2:
        description: The voltage for the auxilary LDO regulator 2
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_aux3:
        description: The voltage for the auxilary LDO regulator 3
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_aux4:
        description: The voltage for the auxilary LDO regulator 4
          only present on AB8505
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_aux5:
        description: The voltage for the auxilary LDO regulator 5
          only present on AB8505
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_aux6:
        description: The voltage for the auxilary LDO regulator 6
          only present on AB8505
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      # There is never any AUX7 regulator which is confusing

      ab8500_ldo_aux8:
        description: The voltage for the auxilary LDO regulator 8
          only present on AB8505
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_intcore:
        description: The LDO regulator for the internal core voltage
          of the AB8500
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_adc:
        description: Analog power regulator for the analog to digital converter
          ADC, only present on AB8505
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_tvout:
        description: The voltage for the TV output regulator, incidentally
          this voltage is also used for other purposes such as measuring
          the temperature of the NTC thermistor on the battery.
          Only present on AB8500.
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_audio:
        description: The LDO regulator for the audio codec output
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_anamic1:
        description: The LDO regulator for the analog microphone 1
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_anamic2:
        description: The LDO regulator for the analog microphone 2
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_dmic:
        description: The LDO regulator for the digital microphone
          only present on AB8500
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ldo_ana:
        description: Analog power regulator for CSI and DSI interfaces,
          Camera Serial Interface CSI and Display Serial Interface DSI.
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

    required:
      - compatible

    additionalProperties: false


  regulator-external:
    description: Node describing the AB8500 external regulators. This
      concerns the autonomous regulators VSMPS1, VSMPS2 and VSMPS3
      that are normally controlled by external electronics but also
      sometimes need to be explicitly controlled by software.
    type: object

    properties:
      compatible:
        const: stericsson,ab8500-ext-regulator

      ab8500_ext1:
        description: The voltage for the VSMPS1 external regulator
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ext2:
        description: The voltage for the VSMPS2 external regulator
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

      ab8500_ext3:
        description: The voltage for the VSMPS3 external regulator
        type: object
        $ref: ../regulator/regulator.yaml#
        unevaluatedProperties: false

    required:
      - compatible

    additionalProperties: false

patternProperties:
  "^pwm@[1-9]+?$":
    type: object
    $ref: ../pwm/pwm.yaml#
    unevaluatedProperties: false
    description: Represents each of the PWM blocks in the AB8500

    properties:
      compatible:
        const: stericsson,ab8500-pwm

      reg: true

      clocks:
        items:
          - description: internal clock

      clock-names:
        items:
          - const: intclk

    required:
      - compatible
      - reg

required:
  - compatible
  - clock-controller
  - gpio
  - rtc
  - adc
  - thermal
  - ab8500_fg
  - ab8500_btemp
  - ab8500_charger
  - ab8500_chargalg
  - phy
  - key
  - regulator

additionalProperties: false