[PATCH 6/9] clocksource: dw_apb_timer: quirk for inverted int mask

[Thomas Gleixner]

On Sat, 6 Jul 2013, Heiko Stübner wrote:

> Some timer variants use an inverted setting to mask the timer interrupt.
> Therefore add a quirk to handle these variants.

And by that add even more pointless conditionals into critical code
pathes.