Re: [PATCH] ARM: dts: sun8i: v3s: Enable crypto engine

[Corentin Labbe]

On Thu, Aug 27, 2020 at 08:00:27PM +0200, Martin Cerveny wrote:
> V3S contains crypto engine that is compatible with "sun4i-ss".
> 
> Tested-by: Martin Cerveny <m.cerveny@xxxxxxxxxxxx>
> Signed-off-by: Martin Cerveny <m.cerveny@xxxxxxxxxxxx>
> ---
>  .../bindings/crypto/allwinner,sun4i-a10-crypto.yaml    |  5 ++++-
>  arch/arm/boot/dts/sun8i-v3s.dtsi                       | 10 ++++++++++
>  drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c      |  7 +++++++
>  3 files changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/crypto/allwinner,sun4i-a10-crypto.yaml b/Documentation/devicetree/bindings/crypto/allwinner,sun4i-a10-crypto.yaml
> index fc823572b..180efd13a 100644
> --- a/Documentation/devicetree/bindings/crypto/allwinner,sun4i-a10-crypto.yaml
> +++ b/Documentation/devicetree/bindings/crypto/allwinner,sun4i-a10-crypto.yaml
> @@ -25,6 +25,7 @@ properties:
>            - const: allwinner,sun4i-a10-crypto
>        - items:
>            - const: allwinner,sun8i-a33-crypto
> +      - const: allwinner,sun8i-v3s-crypto
>  
>    reg:
>      maxItems: 1
> @@ -59,7 +60,9 @@ if:
>    properties:
>      compatible:
>        contains:
> -        const: allwinner,sun6i-a31-crypto
> +        oneOf:
> +          - const: allwinner,sun6i-a31-crypto
> +          - const: allwinner,sun8i-v3s-crypto
>  
>  then:
>    required:
> diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
> index e5312869c..4fec84c40 100644
> --- a/arch/arm/boot/dts/sun8i-v3s.dtsi
> +++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
> @@ -234,6 +234,16 @@
>  			#size-cells = <0>;
>  		};
>  
> +		crypto: crypto@1c15000 {
> +			compatible = "allwinner,sun8i-v3s-crypto";
> +			reg = <0x01c15000 0x1000>;
> +			interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&ccu CLK_BUS_CE>, <&ccu CLK_CE>;
> +			clock-names = "ahb", "mod";
> +			resets = <&ccu RST_BUS_CE>;
> +			reset-names = "ahb";
> +		};
> +
>  		usb_otg: usb@1c19000 {
>  			compatible = "allwinner,sun8i-h3-musb";
>  			reg = <0x01c19000 0x0400>;
> diff --git a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
> index a2b67f7f8..d24496cac 100644
> --- a/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
> +++ b/drivers/crypto/allwinner/sun4i-ss/sun4i-ss-core.c
> @@ -31,6 +31,10 @@ static const struct ss_variant ss_a33_variant = {
>  	.sha1_in_be = true,
>  };
>  
> +static const struct ss_variant ss_v3s_variant = {
> +	.sha1_in_be = true,
> +};
> +
>  static struct sun4i_ss_alg_template ss_algs[] = {
>  {       .type = CRYPTO_ALG_TYPE_AHASH,
>  	.mode = SS_OP_MD5,
> @@ -505,6 +509,9 @@ static const struct of_device_id a20ss_crypto_of_match_table[] = {
>  	{ .compatible = "allwinner,sun8i-a33-crypto",
>  	  .data = &ss_a33_variant
>  	},
> +	{ .compatible = "allwinner,sun8i-v3s-crypto",
> +	  .data = &ss_v3s_variant
> +	},
>  	{}
>  };
>  MODULE_DEVICE_TABLE(of, a20ss_crypto_of_match_table);
> -- 
> 2.17.1
> 

You should split at least drivers/crypto and the dts part, as drivers/crypto patchs are merged via the cryptodev tree and dts/doc will be merged via the sunxi tree.
And ideally split patch in 3, the doc, the dts and the crypto.
See how I added the same for A33 in:
https://lore.kernel.org/linux-arm-kernel/20191120152833.20443-1-clabbe.montjoie@xxxxxxxxx/

Anyway the content is good.
Acked-by: Corentin Labbe <clabbe.montjoie@xxxxxxxxx>

Thanks