| Message ID | 1504785168-26572-4-git-send-email-pierre-yves.mordret@st.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
On Thu, Sep 07, 2017 at 01:52:47PM +0200, Pierre-Yves MORDRET wrote: > STM32 DMA controller has to exposed its number of request line to be > addressed via STM32 DMAMUX. > > Signed-off-by: M'boumba Cedric Madianga <cedric.madianga@gmail.com> > Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com> > --- > Version history: > v4: > * get rid of st,dmamux property > * number of DMA requests is exposed for DMAMUX > v3: > * None > v2: > * Typo fix > --- > --- > Documentation/devicetree/bindings/dma/stm32-dma.txt | 4 +++- > 1 file changed, 3 insertions(+), 1 deletion(-) Acked-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe dmaengine" 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/dma/stm32-dma.txt b/Documentation/devicetree/bindings/dma/stm32-dma.txt index 4408af6..77542e1 100644 --- a/Documentation/devicetree/bindings/dma/stm32-dma.txt +++ b/Documentation/devicetree/bindings/dma/stm32-dma.txt @@ -13,6 +13,7 @@ Required properties: - #dma-cells : Must be <4>. See DMA client paragraph for more details. Optional properties: +- dma-requests : Number of DMA requests supported. - resets: Reference to a reset controller asserting the DMA controller - st,mem2mem: boolean; if defined, it indicates that the controller supports memory-to-memory transfer @@ -34,12 +35,13 @@ Example: #dma-cells = <4>; st,mem2mem; resets = <&rcc 150>; + dma-requests = <8>; }; * DMA client DMA clients connected to the STM32 DMA controller must use the format -described in the dma.txt file, using a five-cell specifier for each +described in the dma.txt file, using a four-cell specifier for each channel: a phandle to the DMA controller plus the following four integer cells: 1. The channel id