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Groups > linux.kernel > #1623310
| From | Geert Uytterhoeven <geert@linux-m68k.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 11/22] ARM: dts: koelsch: Add generic compatible string for I2C EEPROM |
| Date | 2017-04-13 22:00 +0200 |
| Message-ID | <tvT4l-7Fr-7@gated-at.bofh.it> (permalink) |
| References | <tvROV-6SF-5@gated-at.bofh.it> <tvROW-6SF-37@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Thu, Apr 13, 2017 at 8:28 PM, Javier Martinez Canillas
<javier@osg.samsung.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 <javier@osg.samsung.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> --- a/arch/arm/boot/dts/r8a7791-koelsch.dts
> +++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
> @@ -702,7 +702,7 @@
> };
>
> eeprom@50 {
> - compatible = "renesas,24c02";
> + compatible = "renesas,24c02","atmel,24c02";
Missing space after comma.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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[PATCH v2 11/22] ARM: dts: koelsch: Add generic compatible string for I2C EEPROM Javier Martinez Canillas <javier@osg.samsung.com> - 2017-04-13 20:40 +0200 Re: [PATCH v2 11/22] ARM: dts: koelsch: Add generic compatible string for I2C EEPROM Geert Uytterhoeven <geert@linux-m68k.org> - 2017-04-13 22:00 +0200
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