[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>

2 files changed, 6 insertions, 3 deletions

diff --git a/arch/mips/tx4927/common/tx4927_irq.c b/arch/mips/tx4927/common/tx4927_irq.c
index 2c57ced5c68c..21873de49aa8 100644
--- a/arch/mips/tx4927/common/tx4927_irq.c
+++ b/arch/mips/tx4927/common/tx4927_irq.c
@@ -196,7 +196,8 @@ static void __init tx4927_irq_cp0_init(void)
                            TX4927_IRQ_CP0_BEG, TX4927_IRQ_CP0_END);
 
         for (i = TX4927_IRQ_CP0_BEG; i <= TX4927_IRQ_CP0_END; i++)
-                set_irq_chip(i, &tx4927_irq_cp0_type);
+                set_irq_chip_and_handler(i, &tx4927_irq_cp0_type,
+                                         handle_level_irq);
 }
 
 static void tx4927_irq_cp0_enable(unsigned int irq)
@@ -350,7 +351,8 @@ static void __init tx4927_irq_pic_init(void)
                            TX4927_IRQ_PIC_BEG, TX4927_IRQ_PIC_END);
 
         for (i = TX4927_IRQ_PIC_BEG; i <= TX4927_IRQ_PIC_END; i++)
-                set_irq_chip(i, &tx4927_irq_pic_type);
+                set_irq_chip_and_handler(i, &tx4927_irq_pic_type,
+                                         handle_level_irq);
 
         setup_irq(TX4927_IRQ_NEST_PIC_ON_CP0, &tx4927_irq_pic_action);
 
diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
index 1fdace89ae6d..34cdb2a240e9 100644
--- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
+++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_irq.c
@@ -342,7 +342,8 @@ static void __init toshiba_rbtx4927_irq_ioc_init(void)
 
         for (i = TOSHIBA_RBTX4927_IRQ_IOC_BEG;
              i <= TOSHIBA_RBTX4927_IRQ_IOC_END; i++)
-                set_irq_chip(i, &toshiba_rbtx4927_irq_ioc_type);
+                set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type,
+                                         handle_level_irq);
 
         setup_irq(TOSHIBA_RBTX4927_IRQ_NEST_IOC_ON_PIC,
                   &toshiba_rbtx4927_irq_ioc_action);