Hi Hui,

On Wed, Oct 10, 2012 at 05:12:01PM +0800, Hui Wang wrote:

The irq_to_gpio() is old, most platforms use GENERIC_GPIO framework
and don't support this API anymore.

The i.MX6q sabrelite platform equips an egalax touchscreen controller,
and this platform already transfered to GENERIC_GPIO framework, to
support this driver, we use a more generic way to get gpio.

Unfortunately this does break the driver for platforms that do still
support irq_to_gpio and have not transitioned to device tree (yet?).
It looks like the API suffered from premature deletion...

I really do not want to add a new platform data structure with only gpio
in it, is there a better way to detect if irq_to_gpio() (even if only a
stub) is available?

Thanks.

-- 
Dmitry