[PATCH] ARM: display machine model in cpuinfo

[Russell King - ARM Linux]

On Mon, Dec 15, 2014 at 10:45:48AM +0000, Mark Rutland wrote:
> On Sun, Dec 14, 2014 at 02:13:07PM +0000, Rafał Miłecki wrote:
> > This may be useful to display hardware model in the /proc/cpuinfo. It
> > definitely helps to identify the device and there are some archs already
> > doing that (arm64, m32r, mips).
> 
> Not true for arm64, if you look in linux-next.
> 
> I'm rather wary of exposing this kind via cpuinfo because it's
> completely arbitrary in nature and not guaranteed to be in any way
> useful (I have seen dtbs where the model string is misleading due to
> copy+paste and no modificiation).

I wonder what's wrong with reading it from
/sys/firmware/devicetree/base/model if that exists, if not falling back
to reading it from /proc/cpuinfo.

Even better of course to use /sys/firmware/devicetree/base/compatible

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