Bindings/gpio/xylon,logicvc-gpio.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 # Copyright 2019 Bootlin
   3 %YAML 1.2
   4 ---
   5 $id: http://devicetree.org/schemas/gpio/xylon,logicvc-gpio.yaml#
   6 $schema: http://devicetree.org/meta-schemas/core.yaml#
   7
   8 title: Xylon LogiCVC GPIO controller
   9
  10 maintainers:
  11   - Paul Kocialkowski <paul.kocialkowski@bootlin.com>
  12
  13 description: |
  14   The LogiCVC GPIO describes the GPIO block included in the LogiCVC display
  15   controller. These are meant to be used for controlling display-related
  16   signals.
  17
  18   The controller exposes GPIOs from the display and power control registers,
  19   which are mapped by the driver as follows:
  20   - GPIO[4:0] (display control) mapped to index 0-4
  21   - EN_BLIGHT (power control) mapped to index 5
  22   - EN_VDD (power control) mapped to index 6
  23   - EN_VEE (power control) mapped to index 7
  24   - V_EN (power control) mapped to index 8
  25
  26 properties:
  27   $nodename:
  28     pattern: "^gpio@[0-9a-f]+$"
  29
  30   compatible:
  31     enum:
  32       - xylon,logicvc-3.02.a-gpio
  33
  34   reg:
  35     maxItems: 1
  36
  37   "#gpio-cells":
  38     const: 2
  39
  40   gpio-controller: true
  41
  42   gpio-line-names:
  43     minItems: 1
  44     maxItems: 9
  45
  46 required:
  47   - compatible
  48   - reg
  49   - "#gpio-cells"
  50   - gpio-controller
  51
  52 additionalProperties: false
  53
  54 examples:
  55   - |
  56     logicvc: logicvc@43c00000 {
  57       compatible = "xylon,logicvc-3.02.a", "syscon", "simple-mfd";
  58       reg = <0x43c00000 0x6000>;
  59
  60       #address-cells = <1>;
  61       #size-cells = <1>;
  62
  63       logicvc_gpio: gpio@40 {
  64         compatible = "xylon,logicvc-3.02.a-gpio";
  65         reg = <0x40 0x40>;
  66         gpio-controller;
  67         #gpio-cells = <2>;
  68         gpio-line-names = "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4",
  69                "EN_BLIGHT", "EN_VDD", "EN_VEE", "V_EN";
  70       };
  71     };