| Message ID | 1485440915-30119-5-git-send-email-fabrice.gasnier@st.com |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
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... > -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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...