FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/iio/accel/lis302.txt

     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,wakeup-threshold:         set wakeup threshold
     - st,wakeup2-{x,y,z}-{lo,hi}:  set wakeup condition on x/y/z axis for
                                    upper/lower limit for second wakeup
                                    engine.
     - st,wakeup2-threshold:        set wakeup threshold for second wakeup
                                    engine.
     - 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.
                                    Negative values can be used for inverted axis.
     - 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:
    
            accelerometer@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: accelerometer@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>;
           };
   

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