linux-kernel - Re: [PATCH RFC 1/3] dt-bindings: crypto: Add binding for TI DTHE V2 driver

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Message-ID: <20250209-sincere-honored-vole-dda3c7@krzk-bin>
Date: Sun, 9 Feb 2025 13:27:49 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: T Pratham <t-pratham@...com>
Cc: Herbert Xu <herbert@...dor.apana.org.au>, 
	"David S. Miller" <davem@...emloft.net>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>, linux-crypto@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, Vignesh Raghavendra <vigneshr@...com>, 
	Praneeth Bajjuri <praneeth@...com>, Kamlesh Gurudasani <kamlesh@...com>, 
	Manorit Chawdhry <m-chawdhry@...com>
Subject: Re: [PATCH RFC 1/3] dt-bindings: crypto: Add binding for TI DTHE V2
 driver

On Thu, Feb 06, 2025 at 02:44:30PM +0530, T Pratham wrote:
> Add new DT binding for Texas Instruments DTHE V2 crypto driver.

This was never tested so only limited review.

Subject and commit msg: Bindings are for hardware, not driver. Rephrase
to accurately describe the hardware.


> 
> DTHE V2 is introduced as a part of TI AM62L SoC and can currently be
> only found in it.
> 
> Signed-off-by: T Pratham <t-pratham@...com>
> ---
> PS: Please note that the dmas option in dt-bindings is subject to change in
> future as dma driver is not finalized yet. Any updated changes will be
> sent in the next version of the patch.
> 
>  .../devicetree/bindings/crypto/ti,dthev2.yaml      | 50 ++++++++++++++++++++++
>  MAINTAINERS                                        |  6 +++
>  2 files changed, 56 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/crypto/ti,dthev2.yaml b/Documentation/devicetree/bindings/crypto/ti,dthev2.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..9c871fe191ae0a3341d047d4565ec1e1bf1f21ef
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/crypto/ti,dthev2.yaml

Filename matching compatible.

> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/crypto/ti,dthev2.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: K3 SoC DTHE V2 crypto module
> +
> +maintainers:
> +  - T Pratham <t-pratham@...com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ti,dthe-v2

NAK, SoC-based compatible instead.


> +
> +  reg:
> +    maxItems: 1
> +
> +  dmas:
> +    items:
> +      - description: 'AES Engine RX DMA Channel'
> +      - description: 'AES Engine TX DMA Channel'
> +      - description: 'SHA Engine TX DMA Channel'
> +
> +  dma-names:
> +    items:
> +      - const: rx
> +      - const: tx1
> +      - const: tx2
> +
> +

Drop stray blank line

> +required:
> +  - compatible
> +  - reg
> +  - dmas
> +  - dma-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +

Drop stray blank line

> +    crypto: crypto@...00000 {

Drop label

> +		compatible = "ti,dthe-v2";
> +		reg = <0x00 0x40800000 0x00 0x10000>;
> +
> +		dmas = <&main_bcdma 0 0xc701 0>, <&main_bcdma 0 0x4700 0>, <&main_bcdma 0 0xc700 0>;

Wrap according to coding style.

Best regards,
Krzysztof