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