On Tue, May 24, 2016 at 06:39:20PM +0200, Christer Weinigel wrote:

Document how to use devicetree aliases to assign a stable
bus number to a spi bus.

Please submit patches using subject lines reflecting the style for the
subsystem.  This makes it easier for people to identify relevant
patches.

Not having used devicetree that much it was surprisingly hard to
figure out how to assign a stable bus number to a spi bus.  Add a
simple example that shows how to do that.

I'm not sure this is something we want to support at all, I can't
immediately see anything that does this deliberately in the SPI code and
obviously the "bus number" is something of a Linux specific concept
which would need some explanation if we were going to document it.  It's
something I'm struggling a bit to see a robust use case for that isn't
better served by parsing sysfs, what's the goal here?

Mark Cced as the SPI maintainer.  Or should trivial documentation
fixes like this be addressed to someone else?

This is definitely *not* trivial but yes, in general you should CC
maintainers on things.