Added property for DMA configuration of the device.
Signed-off-by: Eugen Hristev <[email protected]>
---
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..5f94d479 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.
+
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
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