st,st-nci.yaml

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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/st,st-nci.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: STMicroelectronics ST NCI NFC controller
    8 
    9 maintainers:
   10   - Krzysztof Kozlowski <krzk@kernel.org>
   11 
   12 properties:
   13   compatible:
   14     enum:
   15       - st,st21nfcb-i2c
   16       - st,st21nfcb-spi
   17       - st,st21nfcc-i2c
   18 
   19   reset-gpios:
   20     description: Output GPIO pin used for resetting the controller
   21 
   22   ese-present:
   23     type: boolean
   24     description: |
   25       Specifies that an ese is physically connected to the controller
   26 
   27   interrupts:
   28     maxItems: 1
   29 
   30   reg:
   31     maxItems: 1
   32 
   33   uicc-present:
   34     type: boolean
   35     description: |
   36       Specifies that the uicc swp signal can be physically connected to the
   37       controller
   38 
   39 required:
   40   - compatible
   41   - interrupts
   42   - reg
   43   - reset-gpios
   44 
   45 if:
   46   properties:
   47     compatible:
   48       contains:
   49         enum:
   50           - st,st21nfcb-i2c
   51           - st,st21nfcc-i2c
   52 then:
   53   properties:
   54     spi-max-frequency: false
   55 else:
   56   $ref: /schemas/spi/spi-peripheral-props.yaml#
   57   required:
   58     - spi-max-frequency
   59 
   60 unevaluatedProperties: false
   61 
   62 examples:
   63   - |
   64     #include <dt-bindings/gpio/gpio.h>
   65     #include <dt-bindings/interrupt-controller/irq.h>
   66 
   67     i2c {
   68         #address-cells = <1>;
   69         #size-cells = <0>;
   70 
   71         nfc@8 {
   72             compatible = "st,st21nfcb-i2c";
   73             reg = <0x08>;
   74 
   75             interrupt-parent = <&gpio5>;
   76             interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
   77             reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
   78 
   79             ese-present;
   80             uicc-present;
   81         };
   82     };
   83 
   84   - |
   85     #include <dt-bindings/gpio/gpio.h>
   86     #include <dt-bindings/interrupt-controller/irq.h>
   87 
   88     spi {
   89         #address-cells = <1>;
   90         #size-cells = <0>;
   91 
   92         nfc@0 {
   93             compatible = "st,st21nfcb-spi";
   94             reg = <0>;
   95 
   96             spi-max-frequency = <4000000>;
   97 
   98             interrupt-parent = <&gpio5>;
   99             interrupts = <2 IRQ_TYPE_EDGE_RISING>;
  100             reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
  101 
  102             ese-present;
  103             uicc-present;
  104         };
  105     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/net/nfc/st,st-nci.yaml

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sys/contrib/device-tree/Bindings/net/nfc/st,st-nci.yaml