The driver is accessing to i2c bus in interrupt handler.
Therefore, it should use threaded irq.
Signed-off-by: NIlkka Koskinen <ilkka.koskinen@nokia.com>
Acked-by: NBalaji T K <balajitk@ti.com>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>