linux-kernel - Re: [PATCH 1/2] dt-bindings: rng: mediatek: convert to yaml schema

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Message-ID: <20210519220421.GA3738290@robh.at.kernel.org>
Date:   Wed, 19 May 2021 17:04:21 -0500
From:   Rob Herring <robh@...nel.org>
To:     Fabien Parent <fparent@...libre.com>
Cc:     Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Sean Wang <sean.wang@...iatek.com>, mkorpershoek@...libre.com,
        linux-crypto@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: rng: mediatek: convert to yaml schema

On Tue, May 18, 2021 at 01:22:49PM +0200, Fabien Parent wrote:
> Convert the RNG binding for MediaTek to use YAML schema.
> 
> Signed-off-by: Fabien Parent <fparent@...libre.com>
> ---
>  .../devicetree/bindings/rng/mtk-rng.txt       | 22 --------
>  .../devicetree/bindings/rng/mtk-rng.yaml      | 53 +++++++++++++++++++
>  2 files changed, 53 insertions(+), 22 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/rng/mtk-rng.txt
>  create mode 100644 Documentation/devicetree/bindings/rng/mtk-rng.yaml
> 
> diff --git a/Documentation/devicetree/bindings/rng/mtk-rng.txt b/Documentation/devicetree/bindings/rng/mtk-rng.txt
> deleted file mode 100644
> index dfdcb5cd2ea8..000000000000
> --- a/Documentation/devicetree/bindings/rng/mtk-rng.txt
> +++ /dev/null
> @@ -1,22 +0,0 @@
> -Device-Tree bindings for Mediatek random number generator
> -found in MediaTek SoC family
> -
> -Required properties:
> -- compatible	    : Should be
> -			"mediatek,mt7622-rng", 	"mediatek,mt7623-rng" : for MT7622
> -			"mediatek,mt7629-rng",  "mediatek,mt7623-rng" : for MT7629
> -			"mediatek,mt7623-rng" : for MT7623
> -			"mediatek,mt8516-rng", "mediatek,mt7623-rng" : for MT8516
> -- clocks	    : list of clock specifiers, corresponding to
> -		      entries in clock-names property;
> -- clock-names	    : Should contain "rng" entries;
> -- reg 		    : Specifies base physical address and size of the registers
> -
> -Example:
> -
> -rng: rng@...0f000 {
> -	compatible = "mediatek,mt7623-rng";
> -	reg = <0 0x1020f000 0 0x1000>;
> -	clocks = <&infracfg CLK_INFRA_TRNG>;
> -	clock-names = "rng";
> -};
> diff --git a/Documentation/devicetree/bindings/rng/mtk-rng.yaml b/Documentation/devicetree/bindings/rng/mtk-rng.yaml
> new file mode 100644
> index 000000000000..d9731f0ae47d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rng/mtk-rng.yaml
> @@ -0,0 +1,53 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/rng/mtk-rng.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: MediaTek Random number generator
> +
> +maintainers:
> +  - Sean Wang <sean.wang@...iatek.com>
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - enum:
> +          - mediatek,mt7623-rng
> +      - items:
> +          - const: mediatek,mt7622-rng
> +          - const: mediatek,mt7623-rng
> +      - items:
> +          - const: mediatek,mt7629-rng
> +          - const: mediatek,mt7623-rng
> +      - items:
> +          - const: mediatek,mt8516-rng
> +          - const: mediatek,mt7623-rng

The last 3 can be:

- items:
    - enum:
        - mediatek,mt7622-rng
        - mediatek,mt7629-rng
        - mediatek,mt8516-rng
    - const: mediatek,mt7623-rng

> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 1
> +
> +  clock-names:
> +    items:
> +      - const: rng
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/mt2701-clk.h>
> +    rng: rng@...0f000 {
> +            compatible = "mediatek,mt7623-rng";
> +            reg = <0x1020f000 0x1000>;
> +            clocks = <&infracfg CLK_INFRA_TRNG>;
> +            clock-names = "rng";
> +    };
> -- 
> 2.31.1
>