linux-kernel - Re: [PATCH v4 16/39] spi: dt-bindings: atmel,at91rm9200-spi: remove 9x60 compatible from list

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Date: Mon, 26 Feb 2024 11:09:55 +0200
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Varshini Rajendran <varshini.rajendran@...rochip.com>,
 broonie@...nel.org, robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
 conor+dt@...nel.org, nicolas.ferre@...rochip.com,
 alexandre.belloni@...tlin.com, claudiu.beznea@...on.dev,
 linux-spi@...r.kernel.org, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 16/39] spi: dt-bindings: atmel,at91rm9200-spi: remove
 9x60 compatible from list



On 23.02.2024 19:26, Varshini Rajendran wrote:
> Remove microchip,sam9x60-spi compatible from the list as the driver used
> has the compatible atmel,at91rm9200-spi and sam9x60 devices also use the
> same compatible as fallback. So removing the microchip,sam9x60-spi
> compatible from the list since it is not needed.
> 

I find this wrong. I though we shall add compatibles for each SoC. Are
the registers and fields the same for the SPI IPs in these 2 SoCs? Even
if they are the same, are you sure the IPs are integrated in the same way?

> Signed-off-by: Varshini Rajendran <varshini.rajendran@...rochip.com>
> ---
> Changes in v4:
> - Elaborated the explanation in the commit message to justify the patch
> ---
>  Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml
> index 58367587bfbc..32e7c14033c2 100644
> --- a/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml
> +++ b/Documentation/devicetree/bindings/spi/atmel,at91rm9200-spi.yaml
> @@ -22,7 +22,6 @@ properties:
>            - const: atmel,at91rm9200-spi
>        - items:
>            - const: microchip,sam9x7-spi
> -          - const: microchip,sam9x60-spi
>            - const: atmel,at91rm9200-spi
>  
>    reg: