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Date:   Wed, 14 Jul 2021 16:51:34 -0600
From:   Rob Herring <robh@kernel.org>
To:     Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Cc:     Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
        linuxppc-dev@lists.ozlabs.org, devicetree@vger.kernel.org,
        Ash Logan <ash@heyquark.com>,
        Jonathan =?iso-8859-1?Q?Neusch=E4fer?= <j.ne@posteo.net>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Paul Mackerras <paulus@samba.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 2/5] dt-bindings: nintendo-otp: Document the Wii and
 Wii U OTP support
Message-ID: <20210714225134.GB3683016@robh.at.kernel.org>
References: <20210519095044.4109-1-linkmauve@linkmauve.fr>
 <20210701225743.14631-1-linkmauve@linkmauve.fr>
 <20210701225743.14631-3-linkmauve@linkmauve.fr>
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On Fri, Jul 02, 2021 at 12:57:40AM +0200, Emmanuel Gil Peyrot wrote:
> Both of these consoles use the exact same two registers, even at the
> same address, but the Wii?U has eight banks of 128?bytes memory while
> the Wii only has one, hence the two compatible strings.
> 
> Signed-off-by: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
> ---
>  .../bindings/nvmem/nintendo-otp.yaml          | 44 +++++++++++++++++++
>  1 file changed, 44 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml
> 
> diff --git a/Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml b/Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml
> new file mode 100644
> index 000000000000..c39bd64b03b9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/nvmem/nintendo-otp.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: GPL-2.0

GPL-2.0-only OR BSD-2-Clause

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/nvmem/nintendo-otp.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Nintendo Wii and Wii?U OTP Device Tree Bindings
> +
> +description: |
> +  This binding represents the OTP memory as found on a Nintendo Wii or Wii?U,
> +  which contains common and per-console keys, signatures and related data
> +  required to access peripherals.
> +
> +  See https://wiiubrew.org/wiki/Hardware/OTP
> +
> +maintainers:
> +  - Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
> +
> +allOf:
> +  - $ref: "nvmem.yaml#"
> +
> +properties:
> +  compatible:
> +    enum:
> +      - nintendo,hollywood-otp
> +      - nintendo,latte-otp
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    otp@d8001ec {
> +        compatible = "nintendo,latte-otp";
> +        reg = <0x0d8001ec 0x8>;
> +    };
> +
> +...
> -- 
> 2.32.0
> 
>