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86851bbce1
Instead of using bitwise operations against returned values, which is a bit fragile, convert IRQ handler to count amount of GPIO groups, where at least one interrupt happened, and convert it to returned value by IRQ_RETVAL() macro. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>