Kernel-3.10.0-957.el7_lis302

LIS302 accelerometer devicetree bindings

This device is matched via its bus drivers, and has a number of properties
that apply in on the generic device (independent from the bus).

Required properties for the SPI bindings:

  • compatible: should be set to “st,lis3lv02d_spi”
  • reg: the chipselect index
  • spi-max-frequency: maximal bus speed, should be set to 1000000 unless
         constrained by external circuitry
    
  • interrupts: the interrupt generated by the device

Required properties for the I2C bindings:

  • compatible: should be set to “st,lis3lv02d”
  • reg: i2c slave address
  • Vdd-supply: The input supply for Vdd
  • Vdd_IO-supply: The input supply for Vdd_IO

Optional properties for all bus drivers:

  • st,click-single-{x,y,z}: if present, tells the device to issue an
             interrupt on single click events on the
             x/y/z axis.
    
  • st,click-double-{x,y,z}: if present, tells the device to issue an
             interrupt on double click events on the
             x/y/z axis.
    
  • st,click-thresh-{x,y,z}: set the x/y/z axis threshold
  • st,click-click-time-limit: click time limit, from 0 to 127.5msec
             with step of 0.5 msec
    
  • st,click-latency: click latency, from 0 to 255 msec with
             step of 1 msec.
    
  • st,click-window: click window, from 0 to 255 msec with
             step of 1 msec.
    
  • st,irq{1,2}-disable: disable IRQ 1/2
  • st,irq{1,2}-ff-wu-1: raise IRQ 1/2 on FF_WU_1 condition
  • st,irq{1,2}-ff-wu-2: raise IRQ 1/2 on FF_WU_2 condition
  • st,irq{1,2}-data-ready: raise IRQ 1/2 on data ready contition
  • st,irq{1,2}-click: raise IRQ 1/2 on click condition
  • st,irq-open-drain: consider IRQ lines open-drain
  • st,irq-active-low: make IRQ lines active low
  • st,wu-duration-1: duration register for Free-Fall/Wake-Up
             interrupt 1
    
  • st,wu-duration-2: duration register for Free-Fall/Wake-Up
             interrupt 2
    
  • st,wakeup-{x,y,z}-{lo,hi}: set wakeup condition on x/y/z axis for
             upper/lower limit
    
  • st,highpass-cutoff-hz=: 1, 2, 4 or 8 for 1Hz, 2Hz, 4Hz or 8Hz of
             highpass cut-off frequency
    
  • st,hipass{1,2}-disable: disable highpass 1/2.
  • st,default-rate=: set the default rate
  • st,axis-{x,y,z}=: set the axis to map to the three coordinates
  • st,{min,max}-limit-{x,y,z} set the min/max limits for x/y/z axis
             (used by self-test)
    

Example for a SPI device node:

lis302@0 {
    compatible = "st,lis302dl-spi";
    reg = <0>;
    spi-max-frequency = <1000000>;
    interrupt-parent = <&gpio>;
    interrupts = <104 0>;

    st,click-single-x;
    st,click-single-y;
    st,click-single-z;
    st,click-thresh-x = <10>;
    st,click-thresh-y = <10>;
    st,click-thresh-z = <10>;
    st,irq1-click;
    st,irq2-click;
    st,wakeup-x-lo;
    st,wakeup-x-hi;
    st,wakeup-y-lo;
    st,wakeup-y-hi;
    st,wakeup-z-lo;
    st,wakeup-z-hi;
};

Example for a I2C device node:

lis331dlh: lis331dlh@18 {
    compatible = "st,lis331dlh", "st,lis3lv02d";
    reg = <0x18>;
    Vdd-supply = <&lis3_reg>;
    Vdd_IO-supply = <&lis3_reg>;

    st,click-single-x;
    st,click-single-y;
    st,click-single-z;
    st,click-thresh-x = <10>;
    st,click-thresh-y = <10>;
    st,click-thresh-z = <10>;
    st,irq1-click;
    st,irq2-click;
    st,wakeup-x-lo;
    st,wakeup-x-hi;
    st,wakeup-y-lo;
    st,wakeup-y-hi;
    st,wakeup-z-lo;
    st,wakeup-z-hi;
    st,min-limit-x = <120>;
    st,min-limit-y = <120>;
    st,min-limit-z = <140>;
    st,max-limit-x = <550>;
    st,max-limit-y = <550>;
    st,max-limit-z = <750>;
};