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Date:   Sun, 17 Jan 2021 12:54:26 +0100
From:   Wolfram Sang <wsa@kernel.org>
To:     Evan Green <evgreen@chromium.org>
Cc:     Peter Rosin <peda@axentia.se>,
        Andy Shevchenko <andy.shevchenko@gmail.com>,
        Randy Dunlap <rdunlap@infradead.org>,
        Peter Korsgaard <peter.korsgaard@barco.com>,
        linux-i2c@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RESEND PATCH v3 2/2] i2c: i2c-mux-gpio: Enable this driver in
 ACPI land
Message-ID: <20210117115426.GH1983@ninjato>
References: <20201118234025.376412-1-evgreen@chromium.org>
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On Wed, Nov 18, 2020 at 03:40:25PM -0800, Evan Green wrote:
> Enable i2c-mux-gpio devices to be defined via ACPI. The idle-state
> property translates directly to a fwnode_property_*() call. The child
> reg property translates naturally into _ADR in ACPI.
>=20
> The i2c-parent binding is a relic from the days when the bindings
> dictated that all direct children of an I2C controller had to be I2C
> devices. These days that's no longer required. The i2c-mux can sit as a
> direct child of its parent controller, which is where it makes the most
> sense from a hardware description perspective. For the ACPI
> implementation we'll assume that's always how the i2c-mux-gpio is
> instantiated.
>=20
> Signed-off-by: Evan Green <evgreen@chromium.org>

Applied to for-next, thanks! The code Andy mentioned can still be
refactored later if new ACPI helpers appear in the future.


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