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Date:   Tue, 22 Feb 2022 09:53:25 +0100
From:   =?UTF-8?B?Q2zDqW1lbnQgTMOpZ2Vy?= <clement.leger@bootlin.com>
To:     Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc:     Daniel Scally <djrscally@gmail.com>,
        Heikki Krogerus <heikki.krogerus@linux.intel.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        "Rafael J . Wysocki" <rafael@kernel.org>,
        Wolfram Sang <wsa@kernel.org>, Peter Rosin <peda@axentia.se>,
        Russell King <linux@armlinux.org.uk>,
        Andrew Lunn <andrew@lunn.ch>,
        Heiner Kallweit <hkallweit1@gmail.com>,
        "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, linux-kernel@vger.kernel.org,
        linux-acpi@vger.kernel.org, linux-i2c@vger.kernel.org,
        netdev@vger.kernel.org,
        Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
        Alexandre Belloni <alexandre.belloni@bootlin.com>
Subject: Re: [RFC 09/10] i2c: mux: add support for fwnode
Message-ID: <20220222095325.52419021@fixe.home>
In-Reply-To: <YhPSDTAPiTvEESnO@smile.fi.intel.com>
References: <20220221162652.103834-1-clement.leger@bootlin.com>
        <20220221162652.103834-10-clement.leger@bootlin.com>
        <YhPSDTAPiTvEESnO@smile.fi.intel.com>
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Le Mon, 21 Feb 2022 19:55:25 +0200,
Andy Shevchenko <andriy.shevchenko@linux.intel.com> a =C3=A9crit :

> On Mon, Feb 21, 2022 at 05:26:51PM +0100, Cl=C3=A9ment L=C3=A9ger wrote:
> > Modify i2c_mux_add_adapter() to use with fwnode API to allow creating
> > mux adapters with fwnode based devices. This allows to have a node
> > independent support for i2c muxes. =20
>=20
> I^2C muxes have their own description for DT and ACPI platforms, I'm not =
sure
> swnode should be used here at all. Just upload a corresponding SSDT overl=
ay or
> DT overlay depending on the platform. Can it be achieved?
>=20

Problem is that this PCIe card can be plugged either in a X86 platform
using ACPI or on a ARM one with device-tree. So it means I should have
two "identical" descriptions for each platforms.

--=20
Cl=C3=A9ment L=C3=A9ger,
Embedded Linux and Kernel engineer at Bootlin
https://bootlin.com