linux-kernel - Re: [PATCH v5 2/5] spi: dt-bindings: cadence: Add Marvell overlay bindings documentation for Cadence XSPI

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Date: Tue, 28 May 2024 08:56:28 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Witold Sadowski <wsadowski@...vell.com>, linux-kernel@...r.kernel.org,
 linux-spi@...r.kernel.org, devicetree@...r.kernel.org
Cc: broonie@...nel.org, robh@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, pthombar@...ence.com
Subject: Re: [PATCH v5 2/5] spi: dt-bindings: cadence: Add Marvell overlay
 bindings documentation for Cadence XSPI

On 27/05/2024 10:42, 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>
> ---
>  .../devicetree/bindings/spi/cdns,xspi.yaml    | 38 +++++++++++++++----
>  1 file changed, 31 insertions(+), 7 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/spi/cdns,xspi.yaml b/Documentation/devicetree/bindings/spi/cdns,xspi.yaml
> index eb0f92468185..d6b8b2a2ecf5 100644
> --- a/Documentation/devicetree/bindings/spi/cdns,xspi.yaml
> +++ b/Documentation/devicetree/bindings/spi/cdns,xspi.yaml
> @@ -15,33 +15,57 @@ 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
> +
> +  interrupts:
> +    maxItems: 1

Items got re-ordered. Keep previous order which matches expected style
(see also DTS coding style).

>  
>    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
> -
> -  interrupts:
> -    maxItems: 1
> +      - const: xferbase
> +    minItems: 3
>  


Best regards,
Krzysztof