Documentation/devicetree/bindings/misc/lis302.txt

   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         };
 112