On Thu, Jan 28, 2016 at 3:56 PM, Andrew F. Davis [off-list ref] wrote:

quoted

I understand that it can also be used as a GPIO (and that it
is then nice to put leds-gpio on top of it) but then
I want a reference to the hardware that actually went ahead
and used this as a GPIO chip rather than using a proper
GPIO expander.

These don't really have the traditional LED features (current control,
HW blinking, etc), and all the use cases I've found treat them as GPO,
including our Industrial Dev Kits (although they run them to test LEDs
as well as the IO header):

http://www.ti.com/tool/tmdsice3359
http://www.ti.com/tool/tmdxidk437x

And a couple more that I don't think have any public schematics yet.

Like you said, they can still be used for LEDs with leds-gpio, as they
don't have any LED specific features I figure this way we get both
uses with one driver.

Fair enough, merged as you see.

Yours,
Linus Walleij