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Documentation / devicetree / bindings / misc / lis302.txt




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Based on kernel version 4.1. Page generated on 2015-06-28 12:09 EST.

1	LIS302 accelerometer devicetree bindings
2	
3	This device is matched via its bus drivers, and has a number of properties
4	that apply in on the generic device (independent from the bus).
5	
6	
7	Required properties for the SPI bindings:
8	 - compatible: 		should be set to "st,lis3lv02d_spi"
9	 - reg:			the chipselect index
10	 - spi-max-frequency:	maximal bus speed, should be set to 1000000 unless
11				constrained by external circuitry
12	 - interrupts:		the interrupt generated by the device
13	
14	Required properties for the I2C bindings:
15	 - compatible:		should be set to "st,lis3lv02d"
16	 - reg:			i2c slave address
17	 - Vdd-supply:		The input supply for Vdd
18	 - Vdd_IO-supply:	The input supply for Vdd_IO
19	
20	
21	Optional properties for all bus drivers:
22	
23	 - st,click-single-{x,y,z}:	if present, tells the device to issue an
24					interrupt on single click events on the
25					x/y/z axis.
26	 - st,click-double-{x,y,z}:	if present, tells the device to issue an
27					interrupt on double click events on the
28					x/y/z axis.
29	 - st,click-thresh-{x,y,z}:	set the x/y/z axis threshold
30	 - st,click-click-time-limit:	click time limit, from 0 to 127.5msec
31					with step of 0.5 msec
32	 - st,click-latency:		click latency, from 0 to 255 msec with
33					step of 1 msec.
34	 - st,click-window:		click window, from 0 to 255 msec with
35					step of 1 msec.
36	 - st,irq{1,2}-disable:		disable IRQ 1/2
37	 - st,irq{1,2}-ff-wu-1:		raise IRQ 1/2 on FF_WU_1 condition
38	 - st,irq{1,2}-ff-wu-2:		raise IRQ 1/2 on FF_WU_2 condition
39	 - st,irq{1,2}-data-ready:	raise IRQ 1/2 on data ready contition
40	 - st,irq{1,2}-click:		raise IRQ 1/2 on click condition
41	 - st,irq-open-drain:		consider IRQ lines open-drain
42	 - st,irq-active-low:		make IRQ lines active low
43	 - st,wu-duration-1:		duration register for Free-Fall/Wake-Up
44					interrupt 1
45	 - st,wu-duration-2:		duration register for Free-Fall/Wake-Up
46					interrupt 2
47	 - st,wakeup-{x,y,z}-{lo,hi}:	set wakeup condition on x/y/z axis for
48					upper/lower limit
49	 - st,wakeup-threshold:		set wakeup threshold
50	 - st,wakeup2-{x,y,z}-{lo,hi}:	set wakeup condition on x/y/z axis for
51					upper/lower limit for second wakeup
52					engine.
53	 - st,wakeup2-threshold:	set wakeup threshold for second wakeup
54					engine.
55	 - st,highpass-cutoff-hz=:	1, 2, 4 or 8 for 1Hz, 2Hz, 4Hz or 8Hz of
56					highpass cut-off frequency
57	 - st,hipass{1,2}-disable:	disable highpass 1/2.
58	 - st,default-rate=:		set the default rate
59	 - st,axis-{x,y,z}=:		set the axis to map to the three coordinates.
60					Negative values can be used for inverted axis.
61	 - st,{min,max}-limit-{x,y,z}	set the min/max limits for x/y/z axis
62					(used by self-test)
63	
64	
65	Example for a SPI device node:
66	
67		lis302@0 {
68			compatible = "st,lis302dl-spi";
69			reg = <0>;
70			spi-max-frequency = <1000000>;
71			interrupt-parent = <&gpio>;
72			interrupts = <104 0>;
73	
74			st,click-single-x;
75			st,click-single-y;
76			st,click-single-z;
77			st,click-thresh-x = <10>;
78			st,click-thresh-y = <10>;
79			st,click-thresh-z = <10>;
80			st,irq1-click;
81			st,irq2-click;
82			st,wakeup-x-lo;
83			st,wakeup-x-hi;
84			st,wakeup-y-lo;
85			st,wakeup-y-hi;
86			st,wakeup-z-lo;
87			st,wakeup-z-hi;
88		};
89	
90	Example for a I2C device node:
91	
92		lis331dlh: lis331dlh@18 {
93			compatible = "st,lis331dlh", "st,lis3lv02d";
94			reg = <0x18>;
95			Vdd-supply = <&lis3_reg>;
96			Vdd_IO-supply = <&lis3_reg>;
97	
98			st,click-single-x;
99			st,click-single-y;
100			st,click-single-z;
101			st,click-thresh-x = <10>;
102			st,click-thresh-y = <10>;
103			st,click-thresh-z = <10>;
104			st,irq1-click;
105			st,irq2-click;
106			st,wakeup-x-lo;
107			st,wakeup-x-hi;
108			st,wakeup-y-lo;
109			st,wakeup-y-hi;
110			st,wakeup-z-lo;
111			st,wakeup-z-hi;
112			st,min-limit-x = <120>;
113			st,min-limit-y = <120>;
114			st,min-limit-z = <140>;
115			st,max-limit-x = <550>;
116			st,max-limit-y = <550>;
117			st,max-limit-z = <750>;
118		};
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