Re: [PATCH 1/2] dt-bindings: nvmem: add "data-size" property

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On Wed, Dec 13, 2023 at 04:47:20PM +0100, Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal@xxxxxxxxxx>
> 
> Allow specifying NVMEM device content size in case it differs from
> device total size.
> 
> Cc: Christian Marangi <ansuelsmth@xxxxxxxxx>
> Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx>
> ---
>  Documentation/devicetree/bindings/nvmem/nvmem.yaml | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/nvmem/nvmem.yaml b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
> index 4fd015d402ce..095aed4250de 100644
> --- a/Documentation/devicetree/bindings/nvmem/nvmem.yaml
> +++ b/Documentation/devicetree/bindings/nvmem/nvmem.yaml
> @@ -26,6 +26,13 @@ properties:
>    "#size-cells":
>      const: 1
>  
> +  data-size:
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description:
> +      NVMEM device actual data (content) size. It may be need to be specified
> +      if it differs by design from the total NVMEM device size and it's
> +      impossible to determine it on runtime.

'data-size' is already defined in 
Documentation/devicetree/bindings/eeprom/microchip,93lc46b.yaml.

That would be fine, but it's defining bits per word. So I think it's 
better if we call this something else. 'total-data-size' or 
'actual-data-size'?

I think Simon had something similar for binman.

Rob




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