Commit 54ae8c4b authored by Robert Marko's avatar Robert Marko Committed by Greg Kroah-Hartman
Browse files

dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings 



Add binding documents for the Delta TN48M CPLD drivers.

Signed-off-by: default avatarRobert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20220131133049.77780-6-robert.marko@sartura.hr


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 5cd3921d

Documentation/devicetree/bindings/gpio/delta,tn48m-gpio.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/gpio/delta,tn48m-gpio.yaml#

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



title: Delta Networks TN48M CPLD GPIO controller



maintainers:

  - Robert Marko <robert.marko@sartura.hr>



description: |

  This module is part of the Delta TN48M multi-function device. For more

  details see ../mfd/delta,tn48m-cpld.yaml.



  Delta TN48M has an onboard Lattice CPLD that is used as an GPIO expander.

  It provides 12 pins in total, they are input-only or ouput-only type.



properties:

  compatible:

    enum:

      - delta,tn48m-gpo

      - delta,tn48m-gpi



  reg:

    maxItems: 1



  "#gpio-cells":

    const: 2



  gpio-controller: true



required:

  - compatible

  - reg

  - "#gpio-cells"

  - gpio-controller



additionalProperties: false

Documentation/devicetree/bindings/mfd/delta,tn48m-cpld.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/mfd/delta,tn48m-cpld.yaml#

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



title: Delta Networks TN48M CPLD controller



maintainers:

  - Robert Marko <robert.marko@sartura.hr>



description: |

  Lattice CPLD onboard the TN48M switches is used for system

  management.



  It provides information about the hardware model, revision,

  PSU status etc.



  It is also being used as a GPIO expander and reset controller

  for the switch MAC-s and other peripherals.



properties:

  compatible:

    const: delta,tn48m-cpld



  reg:

    description:

      I2C device address.

    maxItems: 1



  "#address-cells":

    const: 1



  "#size-cells":

    const: 0



required:

  - compatible

  - reg

  - "#address-cells"

  - "#size-cells"



patternProperties:

  "^gpio(@[0-9a-f]+)?$":

    $ref: ../gpio/delta,tn48m-gpio.yaml



  "^reset-controller?$":

    $ref: ../reset/delta,tn48m-reset.yaml



additionalProperties: false



examples:

  - |

    i2c {

        #address-cells = <1>;

        #size-cells = <0>;



        cpld@41 {

            compatible = "delta,tn48m-cpld";

            reg = <0x41>;

            #address-cells = <1>;

            #size-cells = <0>;



            gpio@31 {

                compatible = "delta,tn48m-gpo";

                reg = <0x31>;

                gpio-controller;

                #gpio-cells = <2>;

            };



            gpio@3a {

                compatible = "delta,tn48m-gpi";

                reg = <0x3a>;

                gpio-controller;

                #gpio-cells = <2>;

            };



            gpio@40 {

                compatible = "delta,tn48m-gpi";

                reg = <0x40>;

                gpio-controller;

                #gpio-cells = <2>;

            };



            reset-controller {

              compatible = "delta,tn48m-reset";

              #reset-cells = <1>;

            };

        };

    };

Documentation/devicetree/bindings/reset/delta,tn48m-reset.yaml

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

%YAML 1.2

---

$id: http://devicetree.org/schemas/reset/delta,tn48m-reset.yaml#

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



title: Delta Networks TN48M CPLD reset controller



maintainers:

  - Robert Marko <robert.marko@sartura.hr>



description: |

  This module is part of the Delta TN48M multi-function device. For more

  details see ../mfd/delta,tn48m-cpld.yaml.



  Reset controller modules provides resets for the following:

  * 88F7040 SoC

  * 88F6820 SoC

  * 98DX3265 switch MAC-s

  * 88E1680 PHY-s

  * 88E1512 PHY

  * PoE PSE controller



properties:

  compatible:

    const: delta,tn48m-reset



  "#reset-cells":

    const: 1



required:

  - compatible

  - "#reset-cells"



additionalProperties: false