On Wed, Mar 12, 2014 at 06:17:05PM +0100, Hans de Goede wrote: > SUN4I_IRQ_VECTOR_REG containing 0 can mean one of 3 things: > 1) no more irqs pending > 2) irq 0 pending > 3) spurious irq > > So if we immediately get a reading of 0, check the irq-pending reg > to differentiate between 2 and 3. We only do this once to avoid > the extra check in the common case of 1) hapening after having > read the vector-reg once. > > Signed-off-by: Hans de Goede <[email protected]>
Acked-by: Maxime Ripard <[email protected]> Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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