Use ktime_get_raw_ns() and get rid of the back and forth timespec
conversions.
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: NJohn Stultz <john.stultz@linaro.org>