Re: [PATCH v4 02/12] dt-bindings: mtd: brcmnand: Add WP pin connection property

[Miquel Raynal]

Hi William,

william.zhang@xxxxxxxxxxxx wrote on Fri,  2 Feb 2024 16:28:23 -0800:

> Add brcm,wp-not-connected property to have an option for disabling this
> feature on broadband board design that does not connect WP pin.
> 
> Signed-off-by: William Zhang <william.zhang@xxxxxxxxxxxx>
> 
> ---
> 
> Changes in v4:
> - Move the WP pin property to this separate patch and change it to
> boolean type.
> 
> Changes in v3: None
> Changes in v2: None
> 
>  Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
> index e54ca08a798a..d0168d55c73e 100644
> --- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
> +++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.yaml
> @@ -113,6 +113,14 @@ properties:
>        earlier versions of this core that include WP
>      type: boolean
>  
> +  brcm,wp-not-connected:
> +    description:
> +      Use this property when board design does not connect controller's
> +      NAND_WPb pin to NAND chip's WP_L pin and disable the write
> +      protection feature. By default, controller assumes the pin is
> +      connected and feature is used.

I would rephrase slightly. What about:

	 WP pin is not physically wired to the NAND chip. Write
	 protection feature cannot be used.
 
> +    $ref: /schemas/types.yaml#/definitions/flag
> +
>  patternProperties:
>    "^nand@[a-f0-9]$":
>      type: object


Thanks,
Miquèl