Documentation/devicetree/bindings/gpio/gpio-mxs.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/gpio/gpio-mxs.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Freescale MXS GPIO controller
   8
   9 maintainers:
  10   - Shawn Guo <shawnguo@kernel.org>
  11   - Anson Huang <Anson.Huang@nxp.com>
  12
  13 description: |
  14   The Freescale MXS GPIO controller is part of MXS PIN controller.
  15   The GPIOs are organized in port/bank, each port consists of 32 GPIOs.
  16   As the GPIO controller is embedded in the PIN controller and all the
  17   GPIO ports share the same IO space with PIN controller, the GPIO node
  18   will be represented as sub-nodes of MXS pinctrl node.
  19
  20 properties:
  21   compatible:
  22     enum:
  23       - fsl,imx23-pinctrl
  24       - fsl,imx28-pinctrl
  25
  26   '#address-cells':
  27     const: 1
  28   '#size-cells':
  29     const: 0
  30
  31   reg:
  32     maxItems: 1
  33
  34 patternProperties:
  35   "gpio@[0-9]+$":
  36     type: object
  37     properties:
  38       compatible:
  39         enum:
  40           - fsl,imx23-gpio
  41           - fsl,imx28-gpio
  42
  43       reg:
  44         maxItems: 1
  45
  46       interrupts:
  47         description: Should be the port interrupt shared by all 32 pins.
  48         maxItems: 1
  49
  50       interrupt-controller: true
  51
  52       "#interrupt-cells":
  53         const: 2
  54
  55       "#gpio-cells":
  56         const: 2
  57
  58       gpio-controller: true
  59
  60     required:
  61       - compatible
  62       - reg
  63       - interrupts
  64       - interrupt-controller
  65       - "#interrupt-cells"
  66       - "#gpio-cells"
  67       - gpio-controller
  68
  69     additionalProperties: false
  70
  71 required:
  72   - compatible
  73   - reg
  74   - '#address-cells'
  75   - '#size-cells'
  76
  77 additionalProperties: false
  78
  79 examples:
  80   - |
  81     pinctrl@80018000 {
  82         #address-cells = <1>;
  83         #size-cells = <0>;
  84         compatible = "fsl,imx28-pinctrl";
  85         reg = <0x80018000 0x2000>;
  86
  87         gpio@0 {
  88                 compatible = "fsl,imx28-gpio";
  89                 reg = <0>;
  90                 interrupts = <127>;
  91                 gpio-controller;
  92                 #gpio-cells = <2>;
  93                 interrupt-controller;
  94                 #interrupt-cells = <2>;
  95         };
  96
  97         gpio@1 {
  98                 compatible = "fsl,imx28-gpio";
  99                 reg = <1>;
 100                 interrupts = <126>;
 101                 gpio-controller;
 102                 #gpio-cells = <2>;
 103                 interrupt-controller;
 104                 #interrupt-cells = <2>;
 105         };
 106
 107         gpio@2 {
 108                 compatible = "fsl,imx28-gpio";
 109                 reg = <2>;
 110                 interrupts = <125>;
 111                 gpio-controller;
 112                 #gpio-cells = <2>;
 113                 interrupt-controller;
 114                 #interrupt-cells = <2>;
 115         };
 116
 117         gpio@3 {
 118                 compatible = "fsl,imx28-gpio";
 119                 reg = <3>;
 120                 interrupts = <124>;
 121                 gpio-controller;
 122                 #gpio-cells = <2>;
 123                 interrupt-controller;
 124                 #interrupt-cells = <2>;
 125         };
 126
 127         gpio@4 {
 128                 compatible = "fsl,imx28-gpio";
 129                 reg = <4>;
 130                 interrupts = <123>;
 131                 gpio-controller;
 132                 #gpio-cells = <2>;
 133                 interrupt-controller;
 134                 #interrupt-cells = <2>;
 135         };
 136     };