powerpc/vio: Use device_type to detect family

[Michael Ellerman]

On Wed, 2017-08-23 at 05:47:13 UTC, Michael Ellerman wrote:
> Currently in the vio.c code we use a comparision against the parent
> device node's full path to decide if the device is a PFO or VIO family
> device.
> 
> Both the ibm,platform-facilities and vdevice nodes are defined by PAPR,
> and must have a matching device_type. So instead of using the path we
> can instead compare the device_type.
> 
> I've checked Qemu and kvmtool both do this correctly, and all the
> PowerVM systems I have access to do also. So it seems to be safe.
> 
> This removes the dependency on full_name, which is being removed
> upstream.
> 
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/bcf21e3a97a1247178338793df9ae3

cheers