Documentation/devicetree/bindings/net/nfc/nxp,nci.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/nxp,nci.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NXP Semiconductors NCI NFC controller
   8
   9 maintainers:
  10   - Charles Gorand <charles.gorand@effinnov.com>
  11   - Krzysztof Kozlowski <krzk@kernel.org>
  12
  13 properties:
  14   compatible:
  15     oneOf:
  16       - const: nxp,nxp-nci-i2c
  17       - items:
  18           - const: nxp,pn547
  19           - const: nxp,nxp-nci-i2c
  20
  21   enable-gpios:
  22     description: Output GPIO pin used for enabling/disabling the controller
  23
  24   firmware-gpios:
  25     description: Output GPIO pin used to enter firmware download mode
  26
  27   interrupts:
  28     maxItems: 1
  29
  30   reg:
  31     maxItems: 1
  32
  33 required:
  34   - compatible
  35   - enable-gpios
  36   - interrupts
  37   - reg
  38
  39 additionalProperties: false
  40
  41 examples:
  42   - |
  43     #include <dt-bindings/gpio/gpio.h>
  44     #include <dt-bindings/interrupt-controller/irq.h>
  45
  46     i2c {
  47         #address-cells = <1>;
  48         #size-cells = <0>;
  49
  50         nfc@29 {
  51             compatible = "nxp,nxp-nci-i2c";
  52
  53             reg = <0x29>;
  54
  55             interrupt-parent = <&gpio1>;
  56             interrupts = <29 IRQ_TYPE_LEVEL_HIGH>;
  57
  58             enable-gpios = <&gpio0 30 GPIO_ACTIVE_HIGH>;
  59             firmware-gpios = <&gpio0 31 GPIO_ACTIVE_HIGH>;
  60         };
  61     };