These accelerometers have bindings used in the kernel and several device trees but no proper bindings documentation. Add it. Also add a compatible for the BMA222 that I am right now adding support for in the driver. Cc: devicetree@xxxxxxxxxxxxxxx Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx> --- ChangeLog v2->v3: - Fix up an include directive in the example to be outside of the I2C node. ChangeLog v1->v2: - Rename to simply bosch,bma255.yaml after one of the common accelerometers. - Specify that the SPI uses a 4-wire interface. - Specify maximum SPI clock frequency to 10MHz. (Checked all the datasheets.) --- .../bindings/iio/accel/bosch,bma255.yaml | 73 +++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml diff --git a/Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml b/Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml new file mode 100644 index 000000000000..6eef3480ea8f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/accel/bosch,bma255.yaml @@ -0,0 +1,73 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/accel/bosch,bma255.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Bosch BMA255 and Similar Accelerometers + +maintainers: + - Linus Walleij <linus.walleij@xxxxxxxxxx> + +description: + 3 axis accelerometers with varying range and I2C or SPI + 4-wire interface. + +properties: + compatible: + enum: + - bosch,bmc150 + - bosch,bmi055 + - bosch,bma255 + - bosch,bma250e + - bosch,bma222 + - bosch,bma222e + - bosch,bma280 + + reg: + maxItems: 1 + + vdd-supply: true + vddio-supply: true + + interrupts: + maxItems: 1 + + mount-matrix: + description: an optional 3x3 mounting rotation matrix. + + spi-max-frequency: + maximum: 10000000 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + i2c { + #address-cells = <1>; + #size-cells = <0>; + accelerometer@8 { + compatible = "bosch,bma222"; + reg = <0x08>; + vddio-supply = <&vddio>; + vdd-supply = <&vdd>; + interrupts = <57 IRQ_TYPE_EDGE_FALLING>; + }; + }; + - | + # include <dt-bindings/interrupt-controller/irq.h> + spi { + #address-cells = <1>; + #size-cells = <0>; + accel@0 { + compatible = "bosch,bma222"; + reg = <0>; + spi-max-frequency = <10000000>; + }; + }; +... -- 2.26.2
