[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, 4 insertions, 2 deletions

diff --git a/arch/mips/vr41xx/common/icu.c b/arch/mips/vr41xx/common/icu.c
index 33d70a6547ad..54b92a74c7ac 100644
--- a/arch/mips/vr41xx/common/icu.c
+++ b/arch/mips/vr41xx/common/icu.c
@@ -701,10 +701,12 @@ static int __init vr41xx_icu_init(void)
         icu2_write(MGIUINTHREG, 0xffff);
 
         for (i = SYSINT1_IRQ_BASE; i <= SYSINT1_IRQ_LAST; i++)
-                set_irq_chip(i, &sysint1_irq_type);
+                set_irq_chip_and_handler(i, &sysint1_irq_type,
+                                         handle_level_irq);
 
         for (i = SYSINT2_IRQ_BASE; i <= SYSINT2_IRQ_LAST; i++)
-                set_irq_chip(i, &sysint2_irq_type);
+                set_irq_chip_and_handler(i, &sysint2_irq_type,
+                                         handle_level_irq);
 
         cascade_irq(INT0_IRQ, icu_get_irq);
         cascade_irq(INT1_IRQ, icu_get_irq);