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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/iio/magnetometer/asahi-kasei,ak8975.yaml
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/iio/magnetometer/asahi-kasei,ak8975.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: AsahiKASEI AK8975 magnetometer sensor

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maintainers:

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  - Jonathan Albrieux <jonathan.albrieux@gmail.com>

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properties:

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  compatible:

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    oneOf:

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      - enum:

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          - asahi-kasei,ak8975

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          - asahi-kasei,ak8963

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          - asahi-kasei,ak09911

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          - asahi-kasei,ak09912

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          - asahi-kasei,ak09916

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      - items:

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          # ak09918 is register compatible with ak09912.

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          - const: asahi-kasei,ak09918

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          - const: asahi-kasei,ak09912

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      - enum:

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          - ak8975

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          - ak8963

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          - ak09911

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          - ak09912

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        deprecated: true

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  reg:

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    maxItems: 1

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  gpios:

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    maxItems: 1

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    description: |

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      AK8975 has a "Data ready" pin (DRDY) which informs that data

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      is ready to be read and is possible to listen on it. If used,

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      this should be active high. Prefer interrupt over this.

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  interrupts:

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    maxItems: 1

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    description: interrupt for DRDY pin. Triggered on rising edge.

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  vdd-supply:

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    description: |

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      an optional regulator that needs to be on to provide VDD power to

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      the sensor.

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  vid-supply:

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    description: |

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      an optional regulator that needs to be on to provide VID power to

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      the sensor.

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  mount-matrix:

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    description: an optional 3x3 mounting rotation matrix.

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  reset-gpios:

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    maxItems: 1

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    description: |

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      an optional pin needed for AK09911 to set the reset state. This should

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      be usually active low

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required:

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  - compatible

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  - reg

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/interrupt-controller/irq.h>

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    #include <dt-bindings/gpio/gpio.h>

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    i2c {

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        #address-cells = <1>;

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        #size-cells = <0>;

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        magnetometer@c {

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            compatible = "asahi-kasei,ak8975";

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            reg = <0x0c>;

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            interrupt-parent = <&gpio6>;

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            interrupts = <15 IRQ_TYPE_EDGE_RISING>;

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            vdd-supply = <&ldo_3v3_gnss>;

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            reset-gpios = <&msmgpio 111 GPIO_ACTIVE_LOW>;

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            mount-matrix = "-0.984807753012208",  /* x0 */

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                           "0",                   /* y0 */

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                           "-0.173648177666930",  /* z0 */

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                           "0",                   /* x1 */

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                           "-1",                  /* y1 */

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                           "0",                   /* z1 */

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                           "-0.173648177666930",  /* x2 */

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                           "0",                   /* y2 */

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                           "0.984807753012208";   /* z2 */

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        };

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    };

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