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From: Arnd Bergmann <arnd@arndb.de>
To: Alexandre Courbot <acourbot@nvidia.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>,
        Mark Brown <broonie@kernel.org>, Mark Rutland <mark.rutland@arm.com>,
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Subject: Re: [PATCH v3] of: replace Asahi Kasei Corp venter prefix
Date: Fri, 14 Nov 2014 10:16:18 +0100
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On Friday 14 November 2014 17:38:58 Alexandre Courbot wrote:
> > diff --git a/arch/arm/boot/dts/tegra20-seaboard.dts b/arch/arm/boot/dts/tegra20-seaboard.dts
> > index a1d4bf9..7f5cf80 100644
> > --- a/arch/arm/boot/dts/tegra20-seaboard.dts
> > +++ b/arch/arm/boot/dts/tegra20-seaboard.dts
> > @@ -405,7 +405,7 @@
> >               clock-frequency = <400000>;
> >
> >               magnetometer@c {
> > -                     compatible = "ak,ak8975";
> > +                     compatible = "asahi-kasei,ak8975";
> 
> Mmm. So does this mean this device was never probed because the driver 
> did not recognize its compatible property? I cannot find "ak,ak8975" 
> anywhere else in the kernel.
> 

No, the i2c bus behaves in a special way by matching the "ak8975"
i2c driver name with any "*,ak8975" DT compatible string. Both
of the above will work with existing kernels.

	Arnd