[RESEND PATCH 4/4] crypto: rk_crypto - add DT bindings documentation

[Mark Rutland]

On Fri, Oct 30, 2015 at 04:22:49PM +0800, Zain Wang wrote:
> Add DT bindings documentation for the rk3288 crypto drivers.
> 
> Signed-off-by: Zain Wang <zain.wang at rock-chips.com>
> ---
>  .../devicetree/bindings/crypto/rk-crypto.txt       | 31 ++++++++++++++++++++++
>  1 file changed, 31 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/crypto/rk-crypto.txt
> 
> diff --git a/Documentation/devicetree/bindings/crypto/rk-crypto.txt b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
> new file mode 100644
> index 0000000..1e50768
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/crypto/rk-crypto.txt
> @@ -0,0 +1,31 @@
> +Rockchip Electronics And Security Accelerator
> +
> +Required properties:
> +- compatible: should be "rockchip,crypto"

Choose a more specific name. Rockchip could easily come up with another
crypto accelerator later.

> +- reg: base physical address of the engine and length of memory mapped
> +       region.
> +- interrupts: interrupt number
> +- clocks: clock specifiers
> +- clock-names: "aclk_crypto" used to clock data
> +			   "hclk_crypto" used to clock data
> +			   "srst_crypto" used to clock crypto accelerator
> +			   "apb_pclk"    used to clock dma
> +-status: Enable

No need to mention the status property.

Thanks,
Mark.

> +
> +Examples:
> +
> +	crypto: cypto-controller at ff8a0000 {
> +		compatible = "rockchip,crypto";
> +		reg = <0xff8a0000 0x4000>;
> +		interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
> +		clocks = <&cru ACLK_CRYPTO>,
> +			 <&cru HCLK_CRYPTO>,
> +			 <&cru SRST_CRYPTO>,
> +			 <&cru ACLK_DMAC1>;
> +
> +		clock-names = "aclk_crypto",
> +			      "hclk_crypto",
> +			      "srst_crypto",
> +				  "apb_pclk";
> +		status = "okay";
> +	};
> -- 
> 1.9.1
> 
>