linux-kernel - Re: [PATCH] WIP: dt-bindings: arm: firmware: tlm,trusted-foundations: Convert txt bindings to yaml

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Message-Id: <GXW81R.AUXV3AJ9VUDL@ixit.cz>
Date:   Wed, 20 Oct 2021 00:24:52 +0200
From:   David Heidelberg <david@...t.cz>
To:     Rob Herring <robh@...nel.org>
Cc:     Stephen Warren <swarren@...dia.com>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, ~okias/devicetree@...ts.sr.ht
Subject: Re: [PATCH] WIP: dt-bindings: arm: firmware: tlm,trusted-foundations:
 Convert txt bindings to yaml




On Tue, Oct 19 2021 at 16:38:18 -0500, Rob Herring <robh@...nel.org> 
wrote:
> On Sat, Oct 09, 2021 at 12:45:18PM +0200, David Heidelberg wrote:
>>  Convert Trusted Foundation binding to the YAML syntax.
> 
> Looks fine. Why WIP?
> 

Can you drop the WIP prefix I forgot or should I resend?


> If version number ranges are known, you could add constraints on 
> those.

from driver:
         * we are not using version information for now since currently
         * supported SMCs are compatible with all TF releases
so I guess at least driver currently doesn't care and know any enums.

David

> 
>> 
>>  Signed-off-by: David Heidelberg <david@...t.cz>
>>  ---
>>   .../arm/firmware/tlm,trusted-foundations.txt  | 20 --------
>>   .../arm/firmware/tlm,trusted-foundations.yaml | 46 
>> +++++++++++++++++++
>>   2 files changed, 46 insertions(+), 20 deletions(-)
>>   delete mode 100644 
>> Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.txt
>>   create mode 100644 
>> Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.yaml
>> 
>>  diff --git 
>> a/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.txt 
>> b/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.txt
>>  deleted file mode 100644
>>  index 780d0392a66b..000000000000
>>  --- 
>> a/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.txt
>>  +++ /dev/null
>>  @@ -1,20 +0,0 @@
>>  -Trusted Foundations
>>  --------------------
>>  -
>>  -Boards that use the Trusted Foundations secure monitor can signal 
>> its
>>  -presence by declaring a node compatible with 
>> "tlm,trusted-foundations"
>>  -under the /firmware/ node
>>  -
>>  -Required properties:
>>  -- compatible: "tlm,trusted-foundations"
>>  -- tlm,version-major: major version number of Trusted Foundations 
>> firmware
>>  -- tlm,version-minor: minor version number of Trusted Foundations 
>> firmware
>>  -
>>  -Example:
>>  -	firmware {
>>  -		trusted-foundations {
>>  -			compatible = "tlm,trusted-foundations";
>>  -			tlm,version-major = <2>;
>>  -			tlm,version-minor = <8>;
>>  -		};
>>  -	};
>>  diff --git 
>> a/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.yaml 
>> b/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.yaml
>>  new file mode 100644
>>  index 000000000000..9d1857c0aa07
>>  --- /dev/null
>>  +++ 
>> b/Documentation/devicetree/bindings/arm/firmware/tlm,trusted-foundations.yaml
>>  @@ -0,0 +1,46 @@
>>  +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>>  +%YAML 1.2
>>  +---
>>  +$id: 
>> "http://devicetree.org/schemas/arm/firmware/tlm,trusted-foundations.yaml#"
>>  +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
>>  +
>>  +title: Trusted Foundations
>>  +
>>  +description: |
>>  +  Boards that use the Trusted Foundations secure monitor can 
>> signal its
>>  +  presence by declaring a node compatible under the /firmware/ node
>>  +
>>  +maintainers:
>>  +  - Stephen Warren <swarren@...dia.com>
>>  +
>>  +properties:
>>  +  $nodename:
>>  +    const: trusted-foundations
>>  +
>>  +  compatible:
>>  +    const: tlm,trusted-foundations
>>  +
>>  +  tlm,version-major:
>>  +    $ref: /schemas/types.yaml#/definitions/uint32
>>  +    description: major version number of Trusted Foundations 
>> firmware
>>  +
>>  +  tlm,version-minor:
>>  +    $ref: /schemas/types.yaml#/definitions/uint32
>>  +    description: minor version number of Trusted Foundations 
>> firmware
>>  +
>>  +required:
>>  +  - compatible
>>  +  - tlm,version-major
>>  +  - tlm,version-minor
>>  +
>>  +additionalProperties: false
>>  +
>>  +examples:
>>  +  - |
>>  +    firmware {
>>  +      trusted-foundations {
>>  +        compatible = "tlm,trusted-foundations";
>>  +        tlm,version-major = <2>;
>>  +        tlm,version-minor = <8>;
>>  +      };
>>  +    };
>>  --
>>  2.33.0
>> 
>>