The IRQ status register should be re-read after each iteration.
Otherwise the loop misses the interrupt if it gets raised immediately
after handled.
Reported-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NMika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>