[PATCH 0/3] irqchip: orion: bridge irq fixes for v3.14-rc1

Jason Cooper jason at lakedaemon.net
Tue Feb 4 23:54:15 EST 2014

On Thu, Jan 23, 2014 at 11:38:03PM +0100, Sebastian Hesselbarth wrote:
> This is a small patch set to fix some shortcomings how Orion bridge
> irqs are handled. The patches are based on v3.13-rc8 and should go
> into v3.14. They can possibly also marked for -stable down to v3.10.
> This patches are the result of a discussion about a stale watchdog irq,
> that can accidentially trigger the watchdog's irq handler and cause a
> reset [1].
> The first patch will add a write to clear already pending interrupts
> on init. The second patch replaces handle_level_irq with handle_edge_irq
> which is more appropriate for bridge irqs which are edge-triggered.
> The last patch finally, fixes stale interrupts by installing an
> .irq_enable callback, that will clear a possible pending interrupt
> before unmasking it.
> [1] http://www.spinics.net/lists/arm-kernel/msg302106.html
> Sebastian Hesselbarth (3):
>   irqchip: orion: clear bridge cause register on init
>   irqchip: orion: use handle_edge_irq on bridge irqs
>   irqchip: orion: clear stale interrupts in irq_enable
>  drivers/irqchip/irq-orion.c | 18 ++++++++++++++++--
>  1 file changed, 16 insertions(+), 2 deletions(-)

Whole series applied to mvebu-next/irqchip-fixes (v2 for 3/3).  Once I
see that the outstanding pull requests for mvebu/irqchip have been
merged into mainline, I'll be changing the name of this branch to
mvebu/irqchip-fixes.  I just don't want to upset the applecart atm.

Oh yeah, Cc'd for stable back to v3.10.



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