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Documentation: dt: iio: at91-sama5d2_adc: add hw trigger edge binding

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Add property for the edge type of the hardware trigger pin ADTRG

Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Eugen Hristev 2017-06-15 16:24:55 +03:00 committed by Jonathan Cameron
parent edd80a5f51
commit 6ab6b4ec00
1 changed files with 6 additions and 0 deletions
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6
Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
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@ -11,6 +11,11 @@ Required properties:
- atmel,min-sample-rate-hz: Minimum sampling rate, it depends on SoC.
- atmel,max-sample-rate-hz: Maximum sampling rate, it depends on SoC.
- atmel,startup-time-ms: Startup time expressed in ms, it depends on SoC.
- atmel,trigger-edge-type: One of possible edge types for the ADTRG hardware
trigger pin. When the specific edge type is detected, the conversion will
start. Possible values are rising, falling, or both.
This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING ,
IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH
Example:
@ -25,4 +30,5 @@ adc: adc@fc030000 {
atmel,startup-time-ms = <4>;
vddana-supply = <&vdd_3v3_lp_reg>;
vref-supply = <&vdd_3v3_lp_reg>;
atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;
}