linux-kernel - Re: [RESEND PATCH 3/4] ARM: dts: lpc18xx: Add generic compatible string for I2C EEPROM

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Date:   Thu, 21 Dec 2017 16:08:11 +0100
From:   Arnd Bergmann <arnd@...db.de>
To:     Javier Martinez Canillas <javierm@...hat.com>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Olof Johansson <olof@...om.net>, arm-soc <arm@...nel.org>,
        DTML <devicetree@...r.kernel.org>,
        Joachim Eastwood <manabian@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RESEND PATCH 3/4] ARM: dts: lpc18xx: Add generic compatible
 string for I2C EEPROM

On Fri, Nov 24, 2017 at 5:27 PM, Javier Martinez Canillas
<javierm@...hat.com> wrote:
> The at24 driver allows to register I2C EEPROM chips using different vendor
> and devices, but the I2C subsystem does not take the vendor into account
> when matching using the I2C table since it only has device entries.
>
> But when matching using an OF table, both the vendor and device has to be
> taken into account so the driver defines only a set of compatible strings
> using the "atmel" vendor as a generic fallback for compatible I2C devices.
>
> So add this generic fallback to the device node compatible string to make
> the device to match the driver using the OF device ID table.
>
> Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>

Applied, thanks

      Arnd