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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/iio/st,st-sensors.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics MEMS sensors
description: The STMicroelectronics sensor devices are pretty straight-forward
I2C or SPI devices, all sharing the same device tree descriptions no matter
what type of sensor it is.
Note that whilst this covers many STMicro MEMs sensors, some more complex
IMUs need their own bindings.
maintainers:
- Denis Ciocca <denis.ciocca@st.com>
- Linus Walleij <linus.walleij@linaro.org>
properties:
compatible:
oneOf:
- description: STMicroelectronics Accelerometers
enum:
- st,h3lis331dl-accel
- st,lis2de12
- st,lis2dw12
- st,lis2hh12
- st,lis2dh12-accel
- st,lis302dl
- st,lis331dl-accel
- st,lis331dlh-accel
- st,lis3de
- st,lis3dh-accel
- st,lis3dhh
- st,lis3l02dq
- st,lis3lv02dl-accel
- st,lng2dm-accel
- st,lsm303agr-accel
- st,lsm303c-accel
- st,lsm303dl-accel
- st,lsm303dlh-accel
- st,lsm303dlhc-accel
- st,lsm303dlm-accel
- st,lsm330-accel
- st,lsm330d-accel
- st,lsm330dl-accel
- st,lsm330dlc-accel
- items:
- const: st,iis328dq
- const: st,h3lis331dl-accel
- description: Silan Accelerometers
enum:
- silan,sc7a20
- description: STMicroelectronics Gyroscopes
enum:
- st,l3g4200d-gyro
- st,l3g4is-gyro
- st,l3gd20-gyro
- st,l3gd20h-gyro
- st,lsm330-gyro
- st,lsm330d-gyro
- st,lsm330dl-gyro
- st,lsm330dlc-gyro
- st,lsm9ds0-gyro
- description: STMicroelectronics Magnetometers
enum:
- st,lis2mdl
- st,lis3mdl-magn
- st,lsm303agr-magn
- st,lsm303c-magn
- st,lsm303dlh-magn
- st,lsm303dlhc-magn
- st,lsm303dlm-magn
- st,lsm9ds1-magn
- description: STMicroelectronics Pressure Sensors
enum:
- st,lps001wp-press
- st,lps22df
- st,lps22hb-press
- st,lps22hh
- st,lps25h-press
- st,lps331ap-press
- st,lps33hw
- st,lps35hw
- description: IMUs
enum:
- st,lsm303d-imu
- st,lsm9ds0-imu
- description: Deprecated bindings
enum:
- st,lis302dl-spi
- st,lis3lv02d
deprecated: true
reg:
maxItems: 1
interrupts:
description: interrupt line(s) connected to the DRDY line(s) and/or the
Inertial interrupt lines INT1 and INT2 if these exist. This means up to
three interrupts, and the DRDY must be the first one if it exists on
the package. The trigger edge of the interrupts is sometimes software
configurable in the hardware so the operating system should parse this
flag and set up the trigger edge as indicated in the device tree.
minItems: 1
maxItems: 2
vdd-supply: true
vddio-supply: true
st,drdy-int-pin:
description: the pin on the package that will be used to signal
"data ready" (valid values 1 or 2). This property is not configurable
on all sensors.
$ref: /schemas/types.yaml#/definitions/uint32
enum: [1, 2]
drive-open-drain:
$ref: /schemas/types.yaml#/definitions/flag
description: the interrupt/data ready line will be configured
as open drain, which is useful if several sensors share the same
interrupt line. (This binding is taken from pinctrl.)
mount-matrix:
description: an optional 3x3 mounting rotation matrix.
allOf:
- if:
properties:
compatible:
enum:
# These have no interrupts
- st,lps001wp
then:
properties:
interrupts: false
st,drdy-int-pin: false
drive-open-drain: false
- if:
properties:
compatible:
enum:
# These have only DRDY
- st,lis2mdl
- st,lis3l02dq
- st,lis3lv02dl-accel
- st,lps22df
- st,lps22hb-press
- st,lps22hh
- st,lps25h-press
- st,lps33hw
- st,lps35hw
- st,lsm303agr-magn
- st,lsm303dlh-magn
- st,lsm303dlhc-magn
- st,lsm303dlm-magn
then:
properties:
interrupts:
maxItems: 1
st,drdy-int-pin: false
required:
- compatible
- reg
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
accelerometer@1c {
compatible = "st,lis331dl-accel";
reg = <0x1c>;
st,drdy-int-pin = <1>;
vdd-supply = <&ldo1>;
vddio-supply = <&ldo2>;
interrupt-parent = <&gpio>;
interrupts = <18 IRQ_TYPE_EDGE_RISING>, <19 IRQ_TYPE_EDGE_RISING>;
};
};
spi {
#address-cells = <1>;
#size-cells = <0>;
num-cs = <1>;
l3g4200d: gyroscope@0 {
compatible = "st,l3g4200d-gyro";
st,drdy-int-pin = <2>;
reg = <0>;
vdd-supply = <&vcc_io>;
vddio-supply = <&vcc_io>;
};
};
...
|
