[PATCH] Input: keyboard - add device tree bindings for simple key matrixes

[grant.likely@secretlab.ca (Grant Likely)]

On Wed, Dec 28, 2011 at 11:06:02PM -0800, Olof Johansson wrote:
> On Wed, Dec 28, 2011 at 11:01 PM, Stephen Warren <swarren@nvidia.com> wrote:
> > Can we deprecate the Samsung format, and only allow it for that Samsung
> > device (and allow both there), and require a single format for any other
> > keyboard?
> 
> I'm definitely ok with that. Thomas, Grant, Rob? The code in question
> is queued for 3.3, so it hasn't been out in a real release yet.
> 
> Adding Kukjin as well since it's getting merged through his tree.

Yeah, I'm okay with that.

BTW, please drop the "compatible" value for this binding.  This binding
describes a common way of describing key mappings, but it isn't a complete
device binding in and of itself.  Rather, it is a binding used by other
bindings; and as such no driver should ever bind against it directly.  The
samsung driver can continue to use the other format if it so desires; there
is no harm in it doing so.

Instead, a driver that expects the binding can just call the
matrix_keyboard_of_fill_keymap() library function without checking
the compatible list.

g.