linux-kernel - Re: [PATCH v3 05/14] dt-bindings: fsi: Document the IBM SBEFIFO engine

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Message-ID: <5fb62fcf-36a8-4efa-9387-d0af8fcafb18@kernel.org>
Date: Fri, 26 Apr 2024 08:20:24 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Eddie James <eajames@...ux.ibm.com>, linux-aspeed@...ts.ozlabs.org
Cc: devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-fsi@...ts.ozlabs.org, linux-spi@...r.kernel.org,
 linux-i2c@...r.kernel.org, lakshmiy@...ibm.com, robh@...nel.org,
 krzk+dt@...nel.org, conor+dt@...nel.org, joel@....id.au,
 andrew@...econstruct.com.au
Subject: Re: [PATCH v3 05/14] dt-bindings: fsi: Document the IBM SBEFIFO
 engine

On 25/04/2024 23:36, Eddie James wrote:
> The SBEFIFO engine provides an interface to the POWER processor
> Self Boot Engine (SBE).
> 
> Signed-off-by: Eddie James <eajames@...ux.ibm.com>
> Acked-by: Conor Dooley <conor.dooley@...rochip.com>
> Reviewed-by: Andrew Jeffery <andrew@...econstruct.com.au>
> ---


> +description:
> +  The SBEFIFO is an FSI CFAM engine that provides an interface to the
> +  POWER processor Self Boot Engine (SBE). This node will always be a child
> +  of an FSI CFAM node; see fsi.txt for details on FSI slave and CFAM
> +  nodes.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ibm,p9-sbefifo
> +      - ibm,odyssey-sbefifo
> +
> +  reg:
> +    items:
> +      - description: FSI slave address
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +patternProperties:
> +  "^occ(@.*)?":

Why unit address is optional?



Best regards,
Krzysztof