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Date: Wed, 7 Feb 2024 08:58:03 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Markus Schneider-Pargmann <msp@...libre.com>, Nishanth Menon <nm@...com>,
 Vignesh Raghavendra <vigneshr@...com>, Tero Kristo <kristo@...nel.org>,
 Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
 Santosh Shilimkar <ssantosh@...nel.org>
Cc: Andrew Davis <afd@...com>, linux-arm-kernel@...ts.infradead.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/4] dt-bindings: hwinfo: ti,k3-socinfo: Add nvmem-cells

On 06/02/2024 15:37, Markus Schneider-Pargmann wrote:
> The information k3-socinfo requires is stored in an efuse area. This
> area is required by other devices/drivers as well, so using nvmem-cells
> can be a cleaner way to describe which information are used.
> 
> If nvmem-cells are supplied, the address range is not required.
> Cells chipvariant, chippartno and chipmanufacturer are introduced to
> cover all required information.
> 
> Signed-off-by: Markus Schneider-Pargmann <msp@...libre.com>
> Reviewed-by: Andrew Davis <afd@...com>
> ---
>  .../bindings/hwinfo/ti,k3-socinfo.yaml        | 23 ++++++++++++++++++-
>  1 file changed, 22 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml b/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
> index dada28b47ea0..f085b7275b7d 100644
> --- a/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
> +++ b/Documentation/devicetree/bindings/hwinfo/ti,k3-socinfo.yaml
> @@ -26,9 +26,24 @@ properties:
>    reg:
>      maxItems: 1
>  
> +  nvmem-cells:
> +    $ref: /schemas/types.yaml#/definitions/phandle-array

You do not need to redefine the type. You need constraints, so maxItems.

> +
> +  nvmem-cell-names:
> +    items:
> +      - const: chipvariant
> +      - const: chippartno
> +      - const: chipmanufacturer


Best regards,
Krzysztof


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