Extending wdt-gpio to be used on non-of (no DT) platforms

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Hi guys,

I've noticed gpio_wdt was added to the kernel to support some devices
based on devicetree.
We used to have our own (not mainlined) gpio_wdt in OpenWrt project:
http://git.openwrt.org/?p=openwrt.git;a=blob;f=target/linux/generic/patches-3.10/990-gpio_wdt.patch;hb=HEAD

The main difference is that the mainlined one uses OF, while OpenWrt's
one uses plain platform API (with struct gpio_wdt_platform_data).

I wanted to bring a topic of mainlining OpenWrt's solution. We
definitely need that and at the same time our device(s) don't use OF /
DT.

Do you think we should extend wdt-gpio to handle that? Or do you think
this driver is so small, it's not worth it and we should submit a
separated one?

Apart from API being used, one other difference I see is OpenWrt
supports different values for "first tick" and "interval". But that
could be easily handled.

-- 
Rafał
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