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SubjectRe: [PATCH 1/3] dt-bindings: k3dma: add optional property dma_min_chan
On 22-06-18, 11:24, Guodong Xu wrote:
> From: Li Yu <liyu65@hisilicon.com>
>
> Add optional property dma_min_chan for k3dma.
>
> Signed-off-by: Li Yu <liyu65@hisilicon.com>
> ---
> Documentation/devicetree/bindings/dma/k3dma.txt | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/dma/k3dma.txt b/Documentation/devicetree/bindings/dma/k3dma.txt
> index 4945aeac4dc4..2fa1370c3173 100644
> --- a/Documentation/devicetree/bindings/dma/k3dma.txt
> +++ b/Documentation/devicetree/bindings/dma/k3dma.txt
> @@ -12,6 +12,11 @@ Required properties:
> have specific request line
> - clocks: clock required
>
> +Optional properties:
> +- dma_min_chan: the minimum number of DMA channel which begin to use
> + the default value is 0, but in some platform is

Sorry I don't understand this property, we already have dma-channels
which describes the channels in a controller. What is purpose of this ?

> + configured 1, like hi3660 platform
> +
> Example:
>
> Controller:
> @@ -21,6 +26,7 @@ Controller:
> #dma-cells = <1>;
> dma-channels = <16>;
> dma-requests = <27>;
> + dma_min_chan = <1>;
> interrupts = <0 12 4>;
> clocks = <&pclk>;
> };
> --
> 2.17.1

--
~Vinod

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