1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/iio/st,st-sensors.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: STMicroelectronics MEMS sensors
8
9 description: The STMicroelectronics sensor devices are pretty straight-forward
10 I2C or SPI devices, all sharing the same device tree descriptions no matter
11 what type of sensor it is.
12 Note that whilst this covers many STMicro MEMs sensors, some more complex
13 IMUs need their own bindings.
14 The STMicroelectronics sensor devices are pretty straight-forward I2C or
15 SPI devices, all sharing the same device tree descriptions no matter what
16 type of sensor it is.
17
18 maintainers:
19 - Denis Ciocca <denis.ciocca@st.com>
20 - Linus Walleij <linus.walleij@linaro.org>
21
22 properties:
23 compatible:
24 oneOf:
25 - description: STMicroelectronics Accelerometers
26 enum:
27 - st,h3lis331dl-accel
28 - st,lis2de12
29 - st,lis2dw12
30 - st,lis2hh12
31 - st,lis2dh12-accel
32 - st,lis302dl
33 - st,lis331dl-accel
34 - st,lis331dlh-accel
35 - st,lis3de
36 - st,lis3dh-accel
37 - st,lis3dhh
38 - st,lis3l02dq
39 - st,lis3lv02dl-accel
40 - st,lng2dm-accel
41 - st,lsm303agr-accel
42 - st,lsm303dl-accel
43 - st,lsm303dlh-accel
44 - st,lsm303dlhc-accel
45 - st,lsm303dlm-accel
46 - st,lsm330-accel
47 - st,lsm330d-accel
48 - st,lsm330dl-accel
49 - st,lsm330dlc-accel
50 - description: Silan Accelerometers
51 enum:
52 - silan,sc7a20
53 - description: STMicroelectronics Gyroscopes
54 enum:
55 - st,l3g4200d-gyro
56 - st,l3g4is-gyro
57 - st,l3gd20-gyro
58 - st,l3gd20h-gyro
59 - st,lsm330-gyro
60 - st,lsm330d-gyro
61 - st,lsm330dl-gyro
62 - st,lsm330dlc-gyro
63 - st,lsm9ds0-gyro
64 - description: STMicroelectronics Magnetometers
65 enum:
66 - st,lis2mdl
67 - st,lis3mdl-magn
68 - st,lsm303agr-magn
69 - st,lsm303dlh-magn
70 - st,lsm303dlhc-magn
71 - st,lsm303dlm-magn
72 - st,lsm9ds1-magn
73 - description: STMicroelectronics Pressure Sensors
74 enum:
75 - st,lps001wp-press
76 - st,lps22hb-press
77 - st,lps22hh
78 - st,lps25h-press
79 - st,lps331ap-press
80 - st,lps33hw
81 - st,lps35hw
82 - description: IMUs
83 enum:
84 - st,lsm9ds0-imu
85 - description: Deprecated bindings
86 enum:
87 - st,lis302dl-spi
88 - st,lis3lv02d
89 deprecated: true
90
91 reg:
92 maxItems: 1
93
94 interrupts:
95 description: interrupt line(s) connected to the DRDY line(s) and/or the
96 Intertial interrupt lines INT1 and INT2 if these exist. This means up to
97 three interrupts, and the DRDY must be the first one if it exists on
98 the package. The trigger edge of the interrupts is sometimes software
99 configurable in the hardware so the operating system should parse this
100 flag and set up the trigger edge as indicated in the device tree.
101 minItems: 1
102 maxItems: 2
103
104 vdd-supply: true
105 vddio-supply: true
106
107 st,drdy-int-pin:
108 description: the pin on the package that will be used to signal
109 "data ready" (valid values 1 or 2). This property is not configurable
110 on all sensors.
111 $ref: /schemas/types.yaml#/definitions/uint32
112 enum: [1, 2]
113
114 drive-open-drain:
115 $ref: /schemas/types.yaml#/definitions/flag
116 description: the interrupt/data ready line will be configured
117 as open drain, which is useful if several sensors share the same
118 interrupt line. (This binding is taken from pinctrl.)
119
120 mount-matrix:
121 description: an optional 3x3 mounting rotation matrix.
122
123 allOf:
124 - if:
125 properties:
126 compatible:
127 enum:
128 # These have no interrupts
129 - st,lps001wp
130 then:
131 properties:
132 interrupts: false
133 st,drdy-int-pin: false
134 drive-open-drain: false
135
136 - if:
137 properties:
138 compatible:
139 enum:
140 # These have only DRDY
141 - st,lis2mdl
142 - st,lis3l02dq
143 - st,lis3lv02dl-accel
144 - st,lps22hb-press
145 - st,lps22hh
146 - st,lps25h-press
147 - st,lps33hw
148 - st,lps35hw
149 - st,lsm303agr-magn
150 - st,lsm303dlh-magn
151 - st,lsm303dlhc-magn
152 - st,lsm303dlm-magn
153 then:
154 properties:
155 interrupts:
156 maxItems: 1
157 st,drdy-int-pin: false
158
159 required:
160 - compatible
161 - reg
162
163 additionalProperties: false
164
165 examples:
166 - |
167 #include <dt-bindings/interrupt-controller/irq.h>
168 i2c {
169 #address-cells = <1>;
170 #size-cells = <0>;
171
172 accelerometer@1c {
173 compatible = "st,lis331dl-accel";
174 reg = <0x1c>;
175 st,drdy-int-pin = <1>;
176 vdd-supply = <&ldo1>;
177 vddio-supply = <&ldo2>;
178 interrupt-parent = <&gpio>;
179 interrupts = <18 IRQ_TYPE_EDGE_RISING>, <19 IRQ_TYPE_EDGE_RISING>;
180 };
181 };
182 spi {
183 #address-cells = <1>;
184 #size-cells = <0>;
185 num-cs = <1>;
186
187 l3g4200d: gyroscope@0 {
188 compatible = "st,l3g4200d-gyro";
189 st,drdy-int-pin = <2>;
190 reg = <0>;
191 vdd-supply = <&vcc_io>;
192 vddio-supply = <&vcc_io>;
193 };
194 };
195 ...
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