[MIPS] use generic_handle_irq, handle_level_irq, handle_percpu_irq

Further incorporation of generic irq framework.  Replacing __do_IRQ()
by proper flow handler would make the irq handling path a bit simpler
and faster.

* use generic_handle_irq() instead of __do_IRQ().
* use handle_level_irq for obvious level-type irq chips.
* use handle_percpu_irq for irqs marked as IRQ_PER_CPU.
* setup .eoi routine for irq chips possibly used with handle_percpu_irq.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/mips/mips-boards/atlas/atlas_int.c b/arch/mips/mips-boards/atlas/atlas_int.c
index 7c710040d3f1..43dba6ce6603 100644
--- a/arch/mips/mips-boards/atlas/atlas_int.c
+++ b/arch/mips/mips-boards/atlas/atlas_int.c
@@ -74,6 +74,7 @@ static struct irq_chip atlas_irq_type = {
         .mask = disable_atlas_irq,
         .mask_ack = disable_atlas_irq,
         .unmask = enable_atlas_irq,
+        .eoi = enable_atlas_irq,
         .end = end_atlas_irq,
 };
 
@@ -207,7 +208,7 @@ static inline void init_atlas_irqs (int base)
         atlas_hw0_icregs->intrsten = 0xffffffff;
 
         for (i = ATLAS_INT_BASE; i <= ATLAS_INT_END; i++)
-                set_irq_chip(i, &atlas_irq_type);
+                set_irq_chip_and_handler(i, &atlas_irq_type, handle_level_irq);
 }
 
 static struct irqaction atlasirq = {