linux-kernel - Re: [PATCH v7 1/4] spi: dt-bindings: cadence: Add Marvell overlay bindings documentation for Cadence XSPI

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Date: Thu, 30 May 2024 20:47:03 -0500
From: Rob Herring <robh@...nel.org>
To: Witold Sadowski <wsadowski@...vell.com>
Cc: linux-kernel@...r.kernel.org, linux-spi@...r.kernel.org,
	devicetree@...r.kernel.org, broonie@...nel.org,
	krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
	pthombar@...ence.com
Subject: Re: [PATCH v7 1/4] spi: dt-bindings: cadence: Add Marvell overlay
 bindings documentation for Cadence XSPI

On Wed, May 29, 2024 at 03:00:23PM -0700, Witold Sadowski wrote:
> Add new bindings for the v2 Marvell xSPI overlay: marvell,cn10-xspi-nor
> compatible string. This new compatible string distinguishes between the
> original and modified xSPI block.
> 
> Also add an optional base for the xfer register set with an additional
> reg field to allocate the xSPI Marvell overlay XFER block.
> 
> Signed-off-by: Witold Sadowski <wsadowski@...vell.com>

Missing a tag.

But since you want it reviewed again...

> ---
>  .../devicetree/bindings/spi/cdns,xspi.yaml    | 32 ++++++++++++++++---
>  1 file changed, 28 insertions(+), 4 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/spi/cdns,xspi.yaml b/Documentation/devicetree/bindings/spi/cdns,xspi.yaml
> index eb0f92468185..49c6a2c82fc4 100644
> --- a/Documentation/devicetree/bindings/spi/cdns,xspi.yaml
> +++ b/Documentation/devicetree/bindings/spi/cdns,xspi.yaml
> @@ -15,24 +15,27 @@ description: |
>    single, dual, quad or octal wire transmission modes for
>    read/write access to slaves such as SPI-NOR flash.
>  
> -allOf:
> -  - $ref: spi-controller.yaml#
> -
>  properties:
>    compatible:
> -    const: cdns,xspi-nor
> +    enum:
> +      - cdns,xspi-nor
> +      - marvell,cn10-xspi-nor
>  
>    reg:
>      items:
>        - description: address and length of the controller register set
>        - description: address and length of the Slave DMA data port
>        - description: address and length of the auxiliary registers
> +      - description: address and length of the xfer registers
> +    minItems: 3
>  
>    reg-names:
>      items:
>        - const: io
>        - const: sdma
>        - const: aux
> +      - const: xferbase

'base' is redundant.

> +    minItems: 3
>  
>    interrupts:
>      maxItems: 1
> @@ -42,6 +45,27 @@ required:
>    - reg
>    - interrupts
>  
> +allOf:
> +  - $ref: spi-controller.yaml#
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - marvell,cn10-xspi-nor
> +    then:
> +      properties:
> +        reg:
> +          minItems: 4
> +        reg-names:
> +          minItems: 4
> +    else:
> +      properties:
> +        reg:
> +          maxItems: 3
> +        reg-names:
> +          maxItems: 3
> +
>  unevaluatedProperties: false
>  
>  examples:
> -- 
> 2.43.0
>