Bindings/mfd/delta,tn48m-cpld.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/mfd/delta,tn48m-cpld.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Delta Networks TN48M CPLD controller
   8
   9 maintainers:
  10   - Robert Marko <robert.marko@sartura.hr>
  11
  12 description: |
  13   Lattice CPLD onboard the TN48M switches is used for system
  14   management.
  15
  16   It provides information about the hardware model, revision,
  17   PSU status etc.
  18
  19   It is also being used as a GPIO expander and reset controller
  20   for the switch MAC-s and other peripherals.
  21
  22 properties:
  23   compatible:
  24     const: delta,tn48m-cpld
  25
  26   reg:
  27     description:
  28       I2C device address.
  29     maxItems: 1
  30
  31   "#address-cells":
  32     const: 1
  33
  34   "#size-cells":
  35     const: 0
  36
  37 required:
  38   - compatible
  39   - reg
  40   - "#address-cells"
  41   - "#size-cells"
  42
  43 patternProperties:
  44   "^gpio(@[0-9a-f]+)?$":
  45     $ref: ../gpio/delta,tn48m-gpio.yaml
  46
  47   "^reset-controller?$":
  48     $ref: ../reset/delta,tn48m-reset.yaml
  49
  50 additionalProperties: false
  51
  52 examples:
  53   - |
  54     i2c {
  55         #address-cells = <1>;
  56         #size-cells = <0>;
  57
  58         cpld@41 {
  59             compatible = "delta,tn48m-cpld";
  60             reg = <0x41>;
  61             #address-cells = <1>;
  62             #size-cells = <0>;
  63
  64             gpio@31 {
  65                 compatible = "delta,tn48m-gpo";
  66                 reg = <0x31>;
  67                 gpio-controller;
  68                 #gpio-cells = <2>;
  69             };
  70
  71             gpio@3a {
  72                 compatible = "delta,tn48m-gpi";
  73                 reg = <0x3a>;
  74                 gpio-controller;
  75                 #gpio-cells = <2>;
  76             };
  77
  78             gpio@40 {
  79                 compatible = "delta,tn48m-gpi";
  80                 reg = <0x40>;
  81                 gpio-controller;
  82                 #gpio-cells = <2>;
  83             };
  84
  85             reset-controller {
  86               compatible = "delta,tn48m-reset";
  87               #reset-cells = <1>;
  88             };
  89         };
  90     };