120 lines
3.6 KiB
Plaintext
120 lines
3.6 KiB
Plaintext
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LIS302 accelerometer devicetree bindings
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This device is matched via its bus drivers, and has a number of properties
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that apply in on the generic device (independent from the bus).
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Required properties for the SPI bindings:
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- compatible: should be set to "st,lis3lv02d-spi"
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- reg: the chipselect index
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- spi-max-frequency: maximal bus speed, should be set to 1000000 unless
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constrained by external circuitry
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- interrupts: the interrupt generated by the device
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Required properties for the I2C bindings:
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- compatible: should be set to "st,lis3lv02d"
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- reg: i2c slave address
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- Vdd-supply: The input supply for Vdd
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- Vdd_IO-supply: The input supply for Vdd_IO
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Optional properties for all bus drivers:
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- st,click-single-{x,y,z}: if present, tells the device to issue an
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interrupt on single click events on the
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x/y/z axis.
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- st,click-double-{x,y,z}: if present, tells the device to issue an
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interrupt on double click events on the
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x/y/z axis.
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- st,click-thresh-{x,y,z}: set the x/y/z axis threshold
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- st,click-click-time-limit: click time limit, from 0 to 127.5msec
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with step of 0.5 msec
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- st,click-latency: click latency, from 0 to 255 msec with
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step of 1 msec.
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- st,click-window: click window, from 0 to 255 msec with
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step of 1 msec.
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- st,irq{1,2}-disable: disable IRQ 1/2
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- st,irq{1,2}-ff-wu-1: raise IRQ 1/2 on FF_WU_1 condition
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- st,irq{1,2}-ff-wu-2: raise IRQ 1/2 on FF_WU_2 condition
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- st,irq{1,2}-data-ready: raise IRQ 1/2 on data ready contition
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- st,irq{1,2}-click: raise IRQ 1/2 on click condition
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- st,irq-open-drain: consider IRQ lines open-drain
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- st,irq-active-low: make IRQ lines active low
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- st,wu-duration-1: duration register for Free-Fall/Wake-Up
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interrupt 1
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- st,wu-duration-2: duration register for Free-Fall/Wake-Up
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interrupt 2
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- st,wakeup-{x,y,z}-{lo,hi}: set wakeup condition on x/y/z axis for
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upper/lower limit
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- st,wakeup-threshold: set wakeup threshold
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- st,wakeup2-{x,y,z}-{lo,hi}: set wakeup condition on x/y/z axis for
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upper/lower limit for second wakeup
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engine.
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- st,wakeup2-threshold: set wakeup threshold for second wakeup
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engine.
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- st,highpass-cutoff-hz=: 1, 2, 4 or 8 for 1Hz, 2Hz, 4Hz or 8Hz of
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highpass cut-off frequency
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- st,hipass{1,2}-disable: disable highpass 1/2.
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- st,default-rate=: set the default rate
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- st,axis-{x,y,z}=: set the axis to map to the three coordinates.
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Negative values can be used for inverted axis.
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- st,{min,max}-limit-{x,y,z} set the min/max limits for x/y/z axis
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(used by self-test)
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Example for a SPI device node:
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accelerometer@0 {
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compatible = "st,lis302dl-spi";
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reg = <0>;
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spi-max-frequency = <1000000>;
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interrupt-parent = <&gpio>;
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interrupts = <104 0>;
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st,click-single-x;
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st,click-single-y;
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st,click-single-z;
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st,click-thresh-x = <10>;
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st,click-thresh-y = <10>;
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st,click-thresh-z = <10>;
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st,irq1-click;
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st,irq2-click;
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st,wakeup-x-lo;
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st,wakeup-x-hi;
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st,wakeup-y-lo;
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st,wakeup-y-hi;
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st,wakeup-z-lo;
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st,wakeup-z-hi;
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};
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Example for a I2C device node:
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lis331dlh: accelerometer@18 {
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compatible = "st,lis331dlh", "st,lis3lv02d";
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reg = <0x18>;
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Vdd-supply = <&lis3_reg>;
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Vdd_IO-supply = <&lis3_reg>;
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st,click-single-x;
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st,click-single-y;
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st,click-single-z;
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st,click-thresh-x = <10>;
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st,click-thresh-y = <10>;
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st,click-thresh-z = <10>;
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st,irq1-click;
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st,irq2-click;
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st,wakeup-x-lo;
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st,wakeup-x-hi;
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st,wakeup-y-lo;
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st,wakeup-y-hi;
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st,wakeup-z-lo;
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st,wakeup-z-hi;
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st,min-limit-x = <120>;
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st,min-limit-y = <120>;
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st,min-limit-z = <140>;
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st,max-limit-x = <550>;
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st,max-limit-y = <550>;
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st,max-limit-z = <750>;
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};
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