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Commit 16ba0dc6 authored by Eugen Hristev's avatar Eugen Hristev Committed by Jonathan Cameron
Browse files

dt-bindings: iio: at91-sama5d2_adc: add optional dma property 



Added property for DMA configuration of the device.

Signed-off-by: default avatarEugen Hristev <eugen.hristev@microchip.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 9a0ebbc9

Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt

+7 −0
Original line number Diff line number Diff line
@@ -17,6 +17,11 @@ Required properties: 
  This property uses the IRQ edge types values: IRQ_TYPE_EDGE_RISING ,

  IRQ_TYPE_EDGE_FALLING or IRQ_TYPE_EDGE_BOTH



Optional properties:

  - dmas: Phandle to dma channel for the ADC.

  - dma-names: Must be "rx" when dmas property is being used.

  See ../../dma/dma.txt for details.



Example:



adc: adc@fc030000 {
@@ -31,4 +36,6 @@ adc: adc@fc030000 { 
	vddana-supply = <&vdd_3v3_lp_reg>;

	vref-supply = <&vdd_3v3_lp_reg>;

	atmel,trigger-edge-type = <IRQ_TYPE_EDGE_BOTH>;

	dmas = <&dma0 (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1) | AT91_XDMAC_DT_PERID(25))>;

	dma-names = "rx";

}