Re: [PATCH] tpm_tis: Allow tpm_tis to be bound using DT

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On Wed, Oct 26, 2016 at 10:01:53AM -0600, Jason Gunthorpe wrote:
> On Wed, Oct 26, 2016 at 12:25:51PM +0100, Mark Rutland wrote:
> 
> > > +Required properties:
> > > +
> > > +- compatible: should specify the actual hardware chip followed by the
> > > +  generic interface name "tcg,tpm_tis-spi";
> > 
> > Please use '-' in comaptible strings rather than '_'.
> 
> Erk, there is also a typo spi vs mmio.

Urgh; missed that too.

> Note that the SPI patches were already Ack'd by DT so there is now
> precedent:
> 
> Documentation/devicetree/bindings/security/tpm/tpm_tis_spi.txt:    "tcg,tpm_tis-spi"

Urgh, that should not have gone in as-is.

> Do you still want to change? 

Regardless of the bad example in the SPI case, this should use a dash.

> Should we change spi too?

That was in v4.8, so it's too late to change it now.

> > Please also describe chip strings, even if those aren't use by the
> > driver, e.g.
> 
> Sure, I can give one or two, but the list will not be exhaustive,
> there are many different TPM chips that adhere to this standard.

Just the one from the example for now is fine; we can add new ones as we
add DTs that use them.

Thanks,
Mark.
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