ti,trf7970a.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/ti,trf7970a.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Texas Instruments TRF7970A RFID/NFC/15693 Transceiver
    8 
    9 maintainers:
   10   - Krzysztof Kozlowski <krzk@kernel.org>
   11   - Mark Greer <mgreer@animalcreek.com>
   12 
   13 properties:
   14   compatible:
   15     const: ti,trf7970a
   16 
   17   autosuspend-delay:
   18     $ref: /schemas/types.yaml#/definitions/uint32
   19     description: |
   20       Specify autosuspend delay in milliseconds.
   21 
   22   clock-frequency:
   23     description: |
   24       Set to specify that the input frequency to the trf7970a is 13560000Hz or
   25       27120000Hz
   26 
   27   en2-rf-quirk:
   28     type: boolean
   29     description: |
   30       Specify that the trf7970a being used has the "EN2 RF" erratum
   31 
   32   interrupts:
   33     maxItems: 1
   34 
   35   irq-status-read-quirk:
   36     type: boolean
   37     description: |
   38       Specify that the trf7970a being used has the "IRQ Status Read" erratum
   39 
   40   reg:
   41     maxItems: 1
   42 
   43   ti,enable-gpios:
   44     minItems: 1
   45     maxItems: 2
   46     description: |
   47       One or two GPIO entries used for 'EN' and 'EN2' pins on the TRF7970A. EN2
   48       is optional.
   49 
   50   vdd-io-supply:
   51     description: |
   52       Regulator specifying voltage for VDD-IO
   53 
   54   vin-supply:
   55     description: |
   56       Regulator for supply voltage to VIN pin
   57 
   58 required:
   59   - compatible
   60   - interrupts
   61   - reg
   62   - spi-max-frequency
   63   - ti,enable-gpios
   64   - vin-supply
   65 
   66 allOf:
   67   - $ref: /schemas/spi/spi-peripheral-props.yaml#
   68 
   69 unevaluatedProperties: false
   70 
   71 examples:
   72   - |
   73     #include <dt-bindings/gpio/gpio.h>
   74     #include <dt-bindings/interrupt-controller/irq.h>
   75 
   76     i2c {
   77         #address-cells = <1>;
   78         #size-cells = <0>;
   79 
   80         nfc@0 {
   81             compatible = "ti,trf7970a";
   82             reg = <0>;
   83 
   84             pinctrl-names = "default";
   85             pinctrl-0 = <&trf7970a_default>;
   86             spi-max-frequency = <2000000>;
   87             interrupt-parent = <&gpio2>;
   88             interrupts = <14 0>;
   89 
   90             ti,enable-gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>,
   91                               <&gpio2 5 GPIO_ACTIVE_HIGH>;
   92             vin-supply = <&ldo3_reg>;
   93             vdd-io-supply = <&ldo2_reg>;
   94             autosuspend-delay = <30000>;
   95             irq-status-read-quirk;
   96             en2-rf-quirk;
   97             clock-frequency = <27120000>;
   98         };
   99     };

Cache object: 218e9d833e6c4382309a76a2bebdb147

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