Re: spi: OF module autoloading is still broken

From: Mark Brown
Date: Mon Nov 16 2015 - 12:50:00 EST

On Mon, Nov 16, 2015 at 02:19:27PM -0300, Javier Martinez Canillas wrote:
> On 11/13/2015 08:48 PM, Brian Norris wrote:

> > (I believe I avoided this in the first place for mostly-aesthetic
> > reasons; technically this allows people to put garbage in their DT, like
> > "garbage,spi-nor". It's unclear whether "garbage" becomes part of the
> > mythical DT ABI [1].)

> I don't believe your examples are part of the mythical DT ABI. What I
> understand is that an ABI is whatever is documented in the DT binding
> docs but the only document that mentions the m25p80 is:

> Documentation/devicetree/bindings/mtd/jedec,spi-nor.txt

Not really, in practice an ABI is something that people notice breaking.
This means that if enough people ship an undocumented ABI (or it goes
into important enough products) it's just as good as something that's
documented, perhaps better than something that's documented and nobody
ever uses as an ABI.

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