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author | Stefan Sørensen <stefan.sorensen@spectralink.com> | 2014-03-06 16:27:15 +0100 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-05-06 07:55:26 -0700 |
commit | eae8deca616b42aed8995bba718e729a650deb00 (patch) | |
tree | 08b82e1bee216a746fb94345898aa9eeaff74b0e /scripts/profile2linkerlist.pl | |
parent | 3d8c3c417bdcddb0798ba54c8032de0ac12cd738 (diff) | |
download | linux-3.10-eae8deca616b42aed8995bba718e729a650deb00.tar.gz linux-3.10-eae8deca616b42aed8995bba718e729a650deb00.tar.bz2 linux-3.10-eae8deca616b42aed8995bba718e729a650deb00.zip |
ARM: OMAP2+: INTC: Acknowledge stuck active interrupts
commit 698b48532539484b012fb7c4176b959d32a17d00 upstream.
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.
Signed-off-by: Stefan Sørensen <stefan.sorensen@spectralink.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/profile2linkerlist.pl')
0 files changed, 0 insertions, 0 deletions