[PATCH v4 1/3] Input: egalax_ts: get gpio from devicetree node

On Thu, Aug 16, 2012 at 06:47:29PM +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.

Add a return value checking for waking up the controller in the probe
function, this guarantee only a workable device can pass init.

Signed-off-by: Hui Wang <redacted>

Reviewed-by: Shawn Guo <redacted>