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[MIPS] IRQ cleanups

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This is a big irq cleanup patch.

* Use set_irq_chip() to register irq_chip.
* Initialize .mask, .unmask, .mask_ack field.  Functions for these
  method are already exist in most case.
* Do not initialize .startup, .shutdown, .enable, .disable fields if
  default routines provided by irq_chip_set_defaults() were suitable.
* Remove redundant irq_desc initializations.
* Remove unnecessary local_irq_save/local_irq_restore, spin_lock.

With this cleanup, it would be easy to switch to slightly lightwait
irq flow handlers (handle_level_irq(), etc.) instead of __do_IRQ().

Though whole this patch is quite large, changes in each irq_chip are
not quite simple.  Please review and test on your platform.  Thanks.

Signed-off-by: Atsushi Nemoto <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
This commit is contained in:
Atsushi Nemoto 2006-11-02 02:08:36 +09:00 • committed by Ralf Baechle
commit 1603b5aca4
37 changed files with 292 additions and 1657 deletions
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2
include/asm-mips/dec/kn02.h
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@ -82,11 +82,9 @@
#ifndef __ASSEMBLY__
#include <linux/spinlock.h>
#include <linux/types.h>
extern u32 cached_kn02_csr;
extern spinlock_t kn02_lock;
extern void init_kn02_irqs(int base);
#endif