[RFC PATCH v2 00/13] arm/tegra: Initialize GPIO & pinmux from DT

On Monday 15 August 2011, Stephen Warren wrote:

v2:
* Enhanced pinmux code to handle "drive pingroups" as well as "mux
  pingroups". This altered the pinmux binding a little; shifting each
  type of pingroup into a sub-node in the pinmux node.
* Enumerate pingroups by enumerating DT child nodes, and mapping them to
  pingroups, rather than the other way around. Hence also removed
  modifications to <linux/of.h> and drivers/of/base.c.
* Included documentation of the bindings.
* Represent pingroup names and function names, as lower case in DT.
* Used a better name for GPIO binding GPIO list.
* Switched to boolean properties for pinmux pull-up/down.
* s/dev_err/dev_dbg/ in DT parsing debug code.
* Various minor cleanups (e.g. typos, white-space).

This patch modifies Tegra's device tree support to remove the dependency
on harmony_pinmux_init(), thus making it completely board-independent.

I don't understand enough of the technical background to comment on
the contents, on the surface it all makes sense.

I do think that you should keep Linus Walleij on Cc in these emails, since
he first started pushing for a common pinmux layer, and we need to make
sure that the binding works for all SoCs, not just for tegra.

	Arnd