Commit 03f2193a authored by Oleksij Rempel's avatar Oleksij Rempel Committed by Jonathan Cameron
Browse files

dt-bindings:iio:adc: add documentation for TI TSC2046 controller 



Add a binding documentation for the TI TSC2046 touchscreen controllers
ADC functionality.

Signed-off-by: default avatarOleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210428073208.19570-3-o.rempel@pengutronix.de


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent f7e196fc

Documentation/devicetree/bindings/iio/adc/ti,tsc2046.yaml

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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/iio/adc/ti,tsc2046.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Texas Instruments TSC2046 touch screen controller.



maintainers:

  - Oleksij Rempel <o.rempel@pengutronix.de>



description: |

  TSC2046 is a touch screen controller with 8 channels ADC.



properties:

  compatible:

    enum:

      - ti,tsc2046e-adc



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  spi-max-frequency: true



  "#io-channel-cells":

    const: 1



  '#address-cells':

    const: 1



  '#size-cells':

    const: 0



required:

  - compatible

  - reg



patternProperties:

  "^channel@[0-7]$":

    $ref: "adc.yaml"

    type: object



    properties:

      reg:

        description: |

          The channel number. It can have up to 8 channels

        items:

          minimum: 0

          maximum: 7



      settling-time-us: true

      oversampling-ratio: true



    required:

      - reg



    additionalProperties: false



additionalProperties: false



examples:

  - |

    #include <dt-bindings/interrupt-controller/irq.h>

    spi {

        #address-cells = <1>;

        #size-cells = <0>;



        adc@0 {

            compatible = "ti,tsc2046e-adc";

            reg = <0>;

            spi-max-frequency = <1000000>;

            interrupts-extended = <&gpio3 20 IRQ_TYPE_LEVEL_LOW>;

            #io-channel-cells = <1>;



            #address-cells = <1>;

            #size-cells = <0>;



            channel@0 {

              reg = <0>;

            };

            channel@1 {

              reg = <1>;

              settling-time-us = <700>;

              oversampling-ratio = <5>;

            };

            channel@2 {

              reg = <2>;

            };

            channel@3 {

              reg = <3>;

              settling-time-us = <700>;

              oversampling-ratio = <5>;

            };

            channel@4 {

              reg = <4>;

              settling-time-us = <700>;

              oversampling-ratio = <5>;

            };

            channel@5 {

              reg = <5>;

              settling-time-us = <700>;

              oversampling-ratio = <5>;

            };

            channel@6 {

              reg = <6>;

            };

            channel@7 {

              reg = <7>;

            };

        };

    };

...