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[v2,4/7] Documentation: dt: iio: stm32-adc: optional dma support

Message ID 1485440915-30119-5-git-send-email-fabrice.gasnier@st.com (mailing list archive)
State New, archived
Headers show

Commit Message

Fabrice Gasnier Jan. 26, 2017, 2:28 p.m. UTC 
STM32 ADC can use dma. Add dt documentation for optional dma support.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Acked-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Jonathan Cameron Jan. 28, 2017, 6:39 p.m. UTC | #1 
On 26/01/17 14:28, Fabrice Gasnier wrote:
> STM32 ADC can use dma. Add dt documentation for optional dma support.
> 
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
> Acked-by: Rob Herring <robh@kernel.org>
Applied.
> ---
>  Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
> index 49ed82e..5dfc88e 100644
> --- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
> +++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
> @@ -53,6 +53,11 @@ Required properties:
>  - #io-channel-cells = <1>: See the IIO bindings section "IIO consumers" in
>    Documentation/devicetree/bindings/iio/iio-bindings.txt
>  
> +Optional properties:
> +- dmas: Phandle to dma channel for this ADC instance.
> +  See ../../dma/dma.txt for details.
> +- dma-names: Must be "rx" when dmas property is being used.
> +
>  Example:
>  	adc: adc@40012000 {
>  		compatible = "st,stm32f4-adc-core";
> @@ -77,6 +82,8 @@ Example:
>  			interrupt-parent = <&adc>;
>  			interrupts = <0>;
>  			st,adc-channels = <8>;
> +			dmas = <&dma2 0 0 0x400 0x0>;
> +			dma-names = "rx";
>  		};
>  		...
>  		other adc child nodes follow...
>
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
index 49ed82e..5dfc88e 100644
--- a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
+++ b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt
@@ -53,6 +53,11 @@  Required properties:
 - #io-channel-cells = <1>: See the IIO bindings section "IIO consumers" in
   Documentation/devicetree/bindings/iio/iio-bindings.txt
 
+Optional properties:
+- dmas: Phandle to dma channel for this ADC instance.
+  See ../../dma/dma.txt for details.
+- dma-names: Must be "rx" when dmas property is being used.
+
 Example:
 	adc: adc@40012000 {
 		compatible = "st,stm32f4-adc-core";
@@ -77,6 +82,8 @@  Example:
 			interrupt-parent = <&adc>;
 			interrupts = <0>;
 			st,adc-channels = <8>;
+			dmas = <&dma2 0 0 0x400 0x0>;
+			dma-names = "rx";
 		};
 		...
 		other adc child nodes follow...