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| author | Fabrice Gasnier <fabrice.gasnier@st.com> | 2017-01-26 17:28:32 +0300 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2017-01-28 21:25:20 +0300 |
| commit | 122b5f4580519b2e2563467a6dc9ac952f1d33da (patch) | |
| tree | 6362e8980a79f4a5e2a0c09d9877e7feb9bdf797 /Documentation/devicetree | |
| parent | 732f2dc46813821824db853e867f08b1ccabb1ab (diff) | |
| download | linux-122b5f4580519b2e2563467a6dc9ac952f1d33da.tar.xz | |
Documentation: dt: iio: stm32-adc: optional dma support
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>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt b/Documentation/devicetree/bindings/iio/adc/st,stm32-adc.txt index 49ed82e89870..5dfc88ec24a4 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... |