[ARM] pxa: generalize the muxed gpio IRQ handling code with loop and ffs()

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1. As David Brownell suggests, using ffs() is going to make the loop
   a bit faster (by avoiding unnecessary shift and iteration)

2. Russell suggested find_{first,next}_bit() being used with the
   gedr[] array

Signed-off-by: eric miao <eric.miao@marvell.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

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eric miao 2008-03-04 10:57:18 +08:00 • committed by Russell King

parent d72b1370b0

commit 7a26d3a33f

1 changed files with 16 additions and 58 deletions

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arch/arm/mach-pxa/irq.c

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