Re: [PATCH RESEND 1/4] crypto: caam: add caam-dma node to SEC4.0 device tree binding

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On Mon, 30 Oct 2017 15:46:51 +0200
Horia Geantă <horia.geanta@xxxxxxx> wrote:

> +=====================================================================
> +CAAM DMA Node
> +
> +    Child node of the crypto node that enables the use of the DMA capabilities
> +    of the CAAM by a stand-alone driver. The only required property is the
> +    "compatible" property. All the other properties are determined from
> +    the job rings on which the CAAM DMA driver depends (ex: the number of
> +    dma-channels is equal to the number of defined job rings).
> +
> +  - compatible
> +      Usage: required
> +      Value type: <string>
> +      Definition: Must include "fsl,sec-v4.0-dma"
> +
> +EXAMPLE
> +  caam-dma {
> +    compatible = "fsl,sec-v5.4-dma",
> +                 "fsl,sec-v5.0-dma",
> +                 "fsl,sec-v4.0-dma";
> +  }

If this isn't describing an aspect of the hardware, then what is it
doing in the device tree?

Kim
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