Re: [PATCH 2/2] Documentation: crypto: Add DT binding info for the img hw hash accelerator

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Hi James,

On Mon, Nov 10, 2014 at 4:10 AM, James Hartley <james.hartley@xxxxxxxxxx> wrote:
> Signed-off-by: James Hartley <james.hartley@xxxxxxxxxx>

A brief commit message describing the hardware and where it's found
would be nice.

> diff --git a/Documentation/devicetree/bindings/crypto/img-hash.txt b/Documentation/devicetree/bindings/crypto/img-hash.txt

> @@ -0,0 +1,28 @@
> +* Imagination Technologies Ltd. Hash Accelerator
> +
> +The hash accelerator provides hardware hashing acceleration for
> +SHA1, SHA224, SHA256 and MD5 hashes
> +
> +Required properties:
> +
> +- compatible : "img,img-hash-accelerator-rev1"

I know I mentioned in the internal review that it would be good to
have some sort of version indicator, but it looks like from the TRM
that the version is probable (CR_HASH_CORE_REV).  If we expect probing
for the revision number to be sufficient, then perhaps "rev1" can be
dropped?  Also, the second "img" is redundant.

> +- reg : Offset and length of the register set for the module, and the DMA port
> +- interrupts : The designated IRQ line for the hashing module.
> +- dmas : DMA specifier as per Documentation/devicetree/bindings/dma/dma.txt
> +- dma-names : Should be "tx"
> +- bus-addr : The bus address for the input data for hashing block

I think this can be dropped.  This is the same as the second "reg"
entry above, is it not?
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