On Thu, Aug 10, 2017 at 03:34:57PM +0300, Eugen Hristev wrote:
> Added property for DMA configuration of the device.
"dt-bindings: iio: ..." is preferred for subject.
>
> Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> index 552e7a8..5f94d47 100644
> --- a/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> +++ b/Documentation/devicetree/bindings/iio/adc/at91-sama5d2_adc.txt
> @@ -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.
> + See ../../dma/dma.txt for details.
> + - dma-names: Must be "rx" when dmas property is being used.
*-names is pointless when there's only one.
> +
> 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";
> }
> --
> 2.7.4
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
