linux-kernel - Re: [PATCH v3 2/7] dt-bindings: interrupt-controller: apple,aic2: New binding for AICv2

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Date:   Thu, 10 Mar 2022 09:43:19 -0600
From:   Rob Herring <robh@...nel.org>
To:     Hector Martin <marcan@...can.st>
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>, Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        Mark Kettenis <mark.kettenis@...all.nl>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v3 2/7] dt-bindings: interrupt-controller: apple,aic2:
 New binding for AICv2

On Thu, Mar 10, 2022 at 04:21:18AM +0900, Hector Martin wrote:
> This new incompatible revision of the AIC peripheral introduces
> multi-die support. This binding is based on apple,aic, but
> changes interrupt-cells to add a new die argument.
> 
> Also adds a second reg entry to specify the offset of the event
> register. Inexplicably, the capability registers allow us to compute
> other register offsets, but not this one. This allows us to keep
> forward-compatibility with future SoCs that will likely implement
> different die counts, thus shifting the event register. Apple also
> specify the offset explicitly in their their device tree...

their their

(checkpatch with codespell installed told me)

> 
> Signed-off-by: Hector Martin <marcan@...can.st>
> ---
>  .../interrupt-controller/apple,aic2.yaml      | 98 +++++++++++++++++++
>  MAINTAINERS                                   |  2 +-
>  2 files changed, 99 insertions(+), 1 deletion(-)
>  create mode 100644 Documentation/devicetree/bindings/interrupt-controller/apple,aic2.yaml

With that,

Reviewed-by: Rob Herring <robh@...nel.org>