linux-kernel - Re: [RFC 00/10] add support for fwnode in i2c mux system and sfp

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 22 Feb 2022 09:57:03 +0100
From:   Andrew Lunn <andrew@...n.ch>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Clément Léger <clement.leger@...tlin.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Daniel Scally <djrscally@...il.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Wolfram Sang <wsa@...nel.org>, Peter Rosin <peda@...ntia.se>,
        Russell King <linux@...linux.org.uk>,
        Heiner Kallweit <hkallweit1@...il.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        netdev <netdev@...r.kernel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: Re: [RFC 00/10] add support for fwnode in i2c mux system and sfp

> > In the DT world, we avoid snow flakes. Once you define a binding, it
> > is expected every following board will use it. So what i believe you
> > are doing here is defining how i2c muxes are described in APCI.
> 
> Linux kernel has already established description of I2C muxes in ACPI:
> https://www.kernel.org/doc/html/latest/firmware-guide/acpi/i2c-muxes.html
> 
> I'm not sure we want another one.

Agreed. This implementation needs to make use of that. Thanks for
pointing it out. I don't know the ACPI world, are there any other
overlaps with existing ACPI bindings?

	Andrew