linux-kernel - Re: [PATCH 1/2] brcmfmac: acpi: Add support for fetching Apple ACPI properties

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Message-ID: <CACRpkdaeuUuKow2AZPi66gFpDVBB0kqvFJAJNmWB7Mn5gtDG7g@mail.gmail.com>
Date:   Wed, 15 Feb 2023 11:13:01 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Hector Martin <marcan@...can.st>
Cc:     Arend van Spriel <aspriel@...il.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Kalle Valo <kvalo@...nel.org>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Sven Peter <sven@...npeter.dev>,
        Alyssa Rosenzweig <alyssa@...enzweig.io>,
        asahi@...ts.linux.dev, linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        SHA-cyfmac-dev-list@...ineon.com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] brcmfmac: acpi: Add support for fetching Apple ACPI properties

On Tue, Feb 14, 2023 at 9:01 AM Hector Martin <marcan@...can.st> wrote:

> On DT platforms, the module-instance and antenna-sku-info properties
> are passed in the DT. On ACPI platforms, module-instance is passed via
> the analogous Apple device property mechanism, while the antenna SKU
> info is instead obtained via an ACPI method that grabs it from
> non-volatile storage.
>
> Add support for this, to allow proper firmware selection on Apple
> platforms.
>
> Signed-off-by: Hector Martin <marcan@...can.st>

It looks like a horrible Apple-ism but I don't know much about ACPI.

The ACPI people are working on device properties to abstract away
all device properties no matter if they come from ACPI, device tree or,
ehm Apple-ACPI, but for now I think it is more important to get
this hardware working upstream and we can think about refactoring
this into device properties for the longer term.

Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij