adi,adis16480.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/iio/imu/adi,adis16480.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Analog Devices ADIS16480 and similar IMUs
    8 
    9 maintainers:
   10   - Alexandru Tachici <alexandru.tachici@analog.com>
   11 
   12 properties:
   13   compatible:
   14     enum:
   15       - adi,adis16375
   16       - adi,adis16480
   17       - adi,adis16485
   18       - adi,adis16488
   19       - adi,adis16490
   20       - adi,adis16495-1
   21       - adi,adis16495-2
   22       - adi,adis16495-3
   23       - adi,adis16497-1
   24       - adi,adis16497-2
   25       - adi,adis16497-3
   26 
   27   reg:
   28     maxItems: 1
   29 
   30   interrupts:
   31     minItems: 1
   32     maxItems: 2
   33     description: |
   34       Accepted interrupt types are:
   35       * IRQ_TYPE_EDGE_RISING
   36       * IRQ_TYPE_EDGE_FALLING
   37 
   38   interrupt-names:
   39     minItems: 1
   40     maxItems: 2
   41     description:
   42       Default if not supplied is DIO1.
   43     items:
   44       enum:
   45         - DIO1
   46         - DIO2
   47         - DIO3
   48         - DIO4
   49 
   50   spi-max-frequency: true
   51 
   52   spi-cpha: true
   53   spi-cpol: true
   54 
   55   reset-gpios:
   56     maxItems: 1
   57     description: Connected to RESET pin which is active low.
   58 
   59   clocks:
   60     maxItems: 1
   61     description: If not provided, then the internal clock is used.
   62 
   63   clock-names:
   64     description: |
   65       sync: In sync mode, the internal clock is disabled and the frequency
   66             of the external clock signal establishes therate of data
   67             collection and processing. See Fig 14 and 15 in the datasheet.
   68             The clock-frequency must be:
   69             * 3000 to 4500 Hz for adis1649x devices.
   70             * 700 to 2400 Hz for adis1648x devices.
   71       pps:  In Pulse Per Second (PPS) Mode, the rate of data collection and
   72             production is equal to the product of the external clock
   73             frequency and the scale factor in the SYNC_SCALE register, see
   74             Table 154 in the datasheet.
   75             The clock-frequency must be:
   76             * 1 to 128 Hz for adis1649x devices.
   77             * This mode is not supported by adis1648x devices.
   78     enum:
   79       - sync
   80       - pps
   81 
   82   adi,ext-clk-pin:
   83     $ref: /schemas/types.yaml#/definitions/string
   84     description: |
   85       The DIOx line to be used as an external clock input.
   86       Each DIOx pin supports only one function at a time (data ready line
   87       selection or external clock input). When a single pin has two
   88       two assignments, the enable bit for the lower priority function
   89       automatically resets to zero (disabling the lower priority function).
   90       Data ready has highest priority.
   91       If not provided then DIO2 is assigned as default external clock
   92       input pin.
   93     enum:
   94       - DIO1
   95       - DIO2
   96       - DIO3
   97       - DIO4
   98 
   99 additionalProperties: false
  100 
  101 required:
  102   - compatible
  103   - reg
  104   - interrupts
  105   - spi-cpha
  106   - spi-cpol
  107   - spi-max-frequency
  108 
  109 examples:
  110   - |
  111     #include <dt-bindings/interrupt-controller/irq.h>
  112     spi {
  113         #address-cells = <1>;
  114         #size-cells = <0>;
  115 
  116         imu@0 {
  117             compatible = "adi,adis16495-1";
  118             reg = <0>;
  119             spi-max-frequency = <3200000>;
  120             spi-cpol;
  121             spi-cpha;
  122             interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
  123             interrupt-parent = <&gpio>;
  124             interrupt-names = "DIO2";
  125             clocks = <&adis16495_sync>;
  126             clock-names = "sync";
  127             adi,ext-clk-pin = "DIO1";
  128         };
  129     };
  130 ...

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sys/contrib/device-tree/Bindings/iio/imu/adi,adis16480.yaml