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BMC156 is very smilar to BMC150, but it has only one accelerometer interrupt pin. It would make sense if only INT1 was exposed but someone at Bosch decided to only have an INT2 pin. In this case, it does not make sense if the first interrupt pin is treated as INT1 (since that pin does not exist). Add a note to the bindings that the first interrupt pin is treated as INT2 for BMC156. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Stephan Gerhold <stephan@gerhold.net> Link: https://lore.kernel.org/r/20210802155657.102766-3-stephan@gerhold.net Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
118 lines
2.7 KiB
YAML
118 lines
2.7 KiB
YAML
# 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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$id: http://devicetree.org/schemas/iio/accel/bosch,bma255.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Bosch BMA255 and Similar Accelerometers
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maintainers:
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- Linus Walleij <linus.walleij@linaro.org>
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- Stephan Gerhold <stephan@gerhold.net>
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description:
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3 axis accelerometers with varying range and I2C or SPI
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4-wire interface.
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properties:
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compatible:
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enum:
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# bmc150-accel driver in Linux
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- bosch,bma222
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- bosch,bma222e
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- bosch,bma250e
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- bosch,bma253
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- bosch,bma254
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- bosch,bma255
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- bosch,bma280
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- bosch,bmc150_accel
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- bosch,bmc156_accel
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- bosch,bmi055_accel
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# bma180 driver in Linux
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- bosch,bma023
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- bosch,bma150
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- bosch,bma180
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- bosch,bma250
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- bosch,smb380
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reg:
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maxItems: 1
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vdd-supply: true
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vddio-supply: true
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interrupts:
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minItems: 1
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maxItems: 2
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description: |
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Without interrupt-names, the first interrupt listed must be the one
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connected to the INT1 pin, the second (optional) interrupt listed must be
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the one connected to the INT2 pin (if available). The type should be
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IRQ_TYPE_EDGE_RISING.
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BMC156 does not have an INT1 pin, therefore the first interrupt pin is
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always treated as INT2.
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interrupt-names:
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minItems: 1
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maxItems: 2
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items:
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enum:
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- INT1
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- INT2
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mount-matrix:
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description: an optional 3x3 mounting rotation matrix.
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spi-max-frequency:
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maximum: 10000000
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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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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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accelerometer@8 {
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compatible = "bosch,bma222";
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reg = <0x08>;
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vddio-supply = <&vddio>;
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vdd-supply = <&vdd>;
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interrupts = <57 IRQ_TYPE_EDGE_RISING>;
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interrupt-names = "INT1";
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};
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};
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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accelerometer@10 {
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compatible = "bosch,bmc156_accel";
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reg = <0x10>;
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vddio-supply = <&vddio>;
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vdd-supply = <&vdd>;
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interrupts = <116 IRQ_TYPE_EDGE_RISING>;
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interrupt-names = "INT2";
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};
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};
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- |
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# include <dt-bindings/interrupt-controller/irq.h>
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spi {
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#address-cells = <1>;
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#size-cells = <0>;
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accel@0 {
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compatible = "bosch,bma222";
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reg = <0>;
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spi-max-frequency = <10000000>;
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};
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};
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...
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