[RFC/PATCH 2/2] of: allow for boolean flags to have value

On Thu, Feb 05, 2015 at 12:01:06PM -0600, Felipe Balbi wrote:

allowing values to boolean flags lets us setup
defaults on DTSI which can get disabled later
at board DTS if, for whatever reason, board can't
use that default.

One such example is DM81xx EVM where we can't use
MUSB's multipoint feature even though SoC supports
it. Something at the board level prevents us from
using the feature.

Instead of removing "multipoint;" from DTSI and
adding it to all board DTS just so we can remove
it from our quirky board seems like overkill when
we could just add:

	multipoint = <0>;

to that quirky board's DTS.

Note that the description here is but one example
and it's likely many others have faced something
similar.

And others even came up with solutions, too: The right thing to do in
this case is

	/delete-property/ multipoint;

This works since

	cd296721a964 (dtc: import latest upstream dtc)

which is in 3.7-rc1. See

http://permalink.gmane.org/gmane.linux.drivers.devicetree/19170

for the related discussion.

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-K?nig            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |