Documentation/devicetree/bindings/net/nfc/st,st21nfca.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/net/nfc/st,st21nfca.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: STMicroelectronics SAS ST21NFCA NFC controller
   8
   9 maintainers:
  10   - Krzysztof Kozlowski <krzk@kernel.org>
  11
  12 properties:
  13   compatible:
  14     const: st,st21nfca-i2c
  15
  16   enable-gpios:
  17     description: Output GPIO pin used for enabling/disabling the controller
  18
  19   ese-present:
  20     type: boolean
  21     description: |
  22       Specifies that an ese is physically connected to the controller
  23
  24   interrupts:
  25     maxItems: 1
  26
  27   reg:
  28     maxItems: 1
  29
  30   uicc-present:
  31     type: boolean
  32     description: |
  33       Specifies that the uicc swp signal can be physically connected to the
  34       controller
  35
  36 required:
  37   - compatible
  38   - enable-gpios
  39   - interrupts
  40   - reg
  41
  42 additionalProperties: false
  43
  44 examples:
  45   - |
  46     #include <dt-bindings/gpio/gpio.h>
  47     #include <dt-bindings/interrupt-controller/irq.h>
  48
  49     i2c {
  50         #address-cells = <1>;
  51         #size-cells = <0>;
  52
  53         nfc@1 {
  54             compatible = "st,st21nfca-i2c";
  55             reg = <0x1>;
  56
  57             interrupt-parent = <&gpio5>;
  58             interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
  59             enable-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
  60
  61             ese-present;
  62             uicc-present;
  63         };
  64     };