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119 lines
3.6 KiB
119 lines
3.6 KiB
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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