[PATCH 0/5] irqchip/dra7: crossbar bug fixes

[Darren Etheridge]

Sricharan R <r.sricharan at ti.com> wrote on Mon [2014-May-05 19:48:42 +0530]:
> These are fixes for the crossbar to handle two interrupts getting
> mapped twice to same crossbar and to skip some interrupts being used
> due to hardware bugs.
> 
> Nishanth Menon (5):
>   irqchip: crossbar: dont use '0' to mark reserved interrupts
>   irqchip: crossbar: check for premapped crossbar before allocating
>   irqchip: crossbar: Skip some irqs from getting mapped to crossbar
>   irqchip: crossbar: Initialise the crossbar with a safe value
>   irqchip: crossbar: Change allocation logic by reversing search for
>     free irqs
> 
Looks good!

I tested this patch series (plus the necessary dts changes) on a
DRA7xx-EVM with the work in progress VIP driver which needs a crossbar
mapping otherwise it won't get any interrupts (using 3.15-rc4 kernel).
It boots cleanly and interrupts are firing for VIP, so everything
working for me.

Without this patch series I can't even get the DRA7xx EVM to boot with
IRQ crossbar support enabled so this is a big improvement.

Tested-by: Darren Etheridge <detheridge at ti.com>


>  drivers/irqchip/irq-crossbar.c |   82 ++++++++++++++++++++++++++++++++++++----
>  1 file changed, 74 insertions(+), 8 deletions(-)
> 
> -- 
> 1.7.9.5
> 
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