linux-kernel - Re: [PATCH v4 1/2] dt-bindings: firmware: Add binding for SMBIOS /chosen properties

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Message-ID: <CAL_JsqJn+vG=FJEnBT2rMQ9Jf+JE2u_j-JpEb=mnWPuTsuz_4w@mail.gmail.com>
Date: Fri, 31 Oct 2025 06:15:58 -0500
From: Rob Herring <robh@...nel.org>
To: adriana <adriana@...sta.com>
Cc: ilias.apalodimas@...aro.org, ardb@...nel.org, trini@...sulko.com, 
	krzk@...nel.org, jdelvare@...e.com, frowand.list@...il.com, 
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, vasilykh@...sta.com, 
	arm.ebbr-discuss@....com, boot-architecture@...ts.linaro.org, 
	linux-efi@...r.kernel.org, uefi-discuss@...ts.uefi.org, 
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 1/2] dt-bindings: firmware: Add binding for SMBIOS
 /chosen properties

On Fri, Oct 31, 2025 at 5:10 AM adriana <adriana@...sta.com> wrote:
>
> Signed-off-by: adriana <adriana@...sta.com>
> ---
>  .../firmware/linux,smbios3-entrypoint.yaml    | 25 +++++++++++++++++++
>  1 file changed, 25 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
>
> diff --git a/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> new file mode 100644
> index 000000000000..4d1521c685ff
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/firmware/linux,smbios3-entrypoint.yaml
> @@ -0,0 +1,25 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright 2025 Arista Networks
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/firmware/linux,smbios3-entrypoint.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Memory location for SMBIOS entry point
> +
> +description: |
> +  This property is used in the /chosen node to pass the physical address
> +  of SMBIOS (System Management BIOS) or DMI (Desktop Management Interface)
> +  tables from firmware to the kernel. This is typically used on non-EFI.
> +
> +maintainers:
> +  - Adriana Nicolae <adriana@...sta.com>
> +  - Rob Herring <robh+dt@...nel.org>
> +
> +properties:
> +  linux,smbios3-entrypoint:
> +    $ref: /schemas/types.yaml#/definitions/uint64
> +    description:
> +      The 64-bit physical address of the SMBIOSv3 entry point structure.

This needs to go in the chosen binding instead:

https://github.com/devicetree-org/dt-schema/blob/main/dtschema/schemas/chosen.yaml