linux-kernel - Re: [PATCH v3 07/11] dt-bindings: arm: apple: Add apple,pmgr binding

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Date:   Sun, 28 Nov 2021 10:24:04 -0600
From:   Rob Herring <robh@...nel.org>
To:     Hector Martin <marcan@...can.st>
Cc:     Alyssa Rosenzweig <alyssa@...enzweig.io>,
        linux-arm-kernel@...ts.infradead.org,
        Marc Zyngier <maz@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Mark Kettenis <kettenis@...nbsd.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Kettenis <mark.kettenis@...all.nl>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Arnd Bergmann <arnd@...nel.org>, linux-pm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-serial@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Johan Hovold <johan@...nel.org>, linux-kernel@...r.kernel.org,
        Linus Walleij <linus.walleij@...aro.org>
Subject: Re: [PATCH v3 07/11] dt-bindings: arm: apple: Add apple,pmgr binding

On Wed, 24 Nov 2021 16:34:17 +0900, Hector Martin wrote:
> The PMGR block in Apple Silicon SoCs is responsible for SoC power
> management. There are two PMGRs in T8103, with different register
> layouts but compatible registers. In order to support this as well
> as future SoC generations with backwards-compatible registers, we
> declare these blocks as syscons and bind to individual registers
> in child nodes. Each register controls one SoC device.
> 
> The respective apple compatibles are defined in case device-specific
> quirks are necessary in the future, but currently these nodes are
> expected to be bound by the generic syscon driver.
> 
> Reviewed-by: Mark Kettenis <kettenis@...nbsd.org>
> Signed-off-by: Hector Martin <marcan@...can.st>
> ---
>  .../bindings/arm/apple/apple,pmgr.yaml        | 134 ++++++++++++++++++
>  1 file changed, 134 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/arm/apple/apple,pmgr.yaml
> 

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