irqchip/dra7: crossbar bug fixes
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Cover letter [PATCH 0/5] irqchip/dra7: crossbar bug fixes
Sricharan R <[email protected]> wrote on Mon [2014-May-05 19:48:42 +0530]:
Quoted 4 lines
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.
Quoted 8 lines
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.
Quoted 10 lines
drivers/irqchip/irq-crossbar.c | 82 ++++++++++++++++++++++++++++++++++++---- 1 file changed, 74 insertions(+), 8 deletions(-)Signature · 6 lines
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