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Documentation / devicetree / bindings / misc / lis302.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:37 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,highpass-cutoff-hz=:	1, 2, 4 or 8 for 1Hz, 2Hz, 4Hz or 8Hz of
50					highpass cut-off frequency
51	 - st,hipass{1,2}-disable:	disable highpass 1/2.
52	 - st,default-rate=:		set the default rate
53	 - st,axis-{x,y,z}=:		set the axis to map to the three coordinates
54	 - st,{min,max}-limit-{x,y,z}	set the min/max limits for x/y/z axis
55					(used by self-test)
56	
57	
58	Example for a SPI device node:
59	
60		lis302@0 {
61			compatible = "st,lis302dl-spi";
62			reg = <0>;
63			spi-max-frequency = <1000000>;
64			interrupt-parent = <&gpio>;
65			interrupts = <104 0>;
66	
67			st,click-single-x;
68			st,click-single-y;
69			st,click-single-z;
70			st,click-thresh-x = <10>;
71			st,click-thresh-y = <10>;
72			st,click-thresh-z = <10>;
73			st,irq1-click;
74			st,irq2-click;
75			st,wakeup-x-lo;
76			st,wakeup-x-hi;
77			st,wakeup-y-lo;
78			st,wakeup-y-hi;
79			st,wakeup-z-lo;
80			st,wakeup-z-hi;
81		};
82	
83	Example for a I2C device node:
84	
85		lis331dlh: lis331dlh@18 {
86			compatible = "st,lis331dlh", "st,lis3lv02d";
87			reg = <0x18>;
88			Vdd-supply = <&lis3_reg>;
89			Vdd_IO-supply = <&lis3_reg>;
90	
91			st,click-single-x;
92			st,click-single-y;
93			st,click-single-z;
94			st,click-thresh-x = <10>;
95			st,click-thresh-y = <10>;
96			st,click-thresh-z = <10>;
97			st,irq1-click;
98			st,irq2-click;
99			st,wakeup-x-lo;
100			st,wakeup-x-hi;
101			st,wakeup-y-lo;
102			st,wakeup-y-hi;
103			st,wakeup-z-lo;
104			st,wakeup-z-hi;
105			st,min-limit-x = <120>;
106			st,min-limit-y = <120>;
107			st,min-limit-z = <140>;
108			st,max-limit-x = <550>;
109			st,max-limit-y = <550>;
110			st,max-limit-z = <750>;
111		};
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