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Commit a591525f authored by Eugen Hristev's avatar Eugen Hristev Committed by Jonathan Cameron
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dt-bindings: iio: adc: at91-sama5d2_adc: add channel specific consumer info 



Added defines for channel consumer device-tree binding

Signed-off-by: default avatarEugen Hristev <eugen.hristev@microchip.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarLudovic Desroches <ludovic.desroches@microchip.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent aa132ffb

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

+9 −0
Original line number Diff line number Diff line
@@ -21,6 +21,14 @@ 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.

  - #io-channel-cells: in case consumer drivers are attached, this must be 1.

  See <Documentation/devicetree/bindings/iio/iio-bindings.txt> for details.



Properties for consumer drivers:

  - Consumer drivers can be connected to this producer device, as specified

  in <Documentation/devicetree/bindings/iio/iio-bindings.txt>

  - Channels exposed are specified in:

  <dt-bindings/iio/adc/at91-sama5d2_adc.txt>



Example:
@@ -38,4 +46,5 @@ adc: adc@fc030000 { 
	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";

	#io-channel-cells = <1>;

}

include/dt-bindings/iio/adc/at91-sama5d2_adc.h

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+16 −0
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/* SPDX-License-Identifier: GPL-2.0 */

/*

 * This header provides constants for configuring the AT91 SAMA5D2 ADC

 */



#ifndef _DT_BINDINGS_IIO_ADC_AT91_SAMA5D2_ADC_H

#define _DT_BINDINGS_IIO_ADC_AT91_SAMA5D2_ADC_H



/* X relative position channel index */

#define AT91_SAMA5D2_ADC_X_CHANNEL		24

/* Y relative position channel index */

#define AT91_SAMA5D2_ADC_Y_CHANNEL		25

/* pressure channel index */

#define AT91_SAMA5D2_ADC_P_CHANNEL		26



#endif