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Diffstat (limited to 'Documentation/devicetree/bindings/iio/accel/lis302.txt')
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1 files changed, 119 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/accel/lis302.txt b/Documentation/devicetree/bindings/iio/accel/lis302.txt new file mode 100644 index 000000000..764e28ec1 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/accel/lis302.txt @@ -0,0 +1,119 @@ +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>; + }; + |