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Commit 698b4853 authored by Stefan Sørensen's avatar Stefan Sørensen Committed by Tony Lindgren
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ARM: OMAP2+: INTC: Acknowledge stuck active interrupts



When an interrupt has become active on the INTC it will stay active
until it is acked, even if masked or de-asserted. The
INTC_PENDING_IRQn registers are however updated and since these are
used by omap_intc_handle_irq to determine which interrupt to handle,
it will never see the active interrupt. This will result in a storm of
useless interrupts that is only stopped when another higher priority
interrupt is asserted.

Fix by sending the INTC an acknowledge if we find no interrupts to
handle.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarStefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
parent cfbf8d48
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