spi_s3c24xx: fix clock rate calculation

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Currently the clock rate calculation may round as pleased, which means
that it is possible that we will round down and end up with a faster clock
rate than intended.

Change the calculation to use DIV_ROUND_UP() to ensure that we end up with
a clock rate either the same as or lower than the user requested one.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Ben Dooks 2009-08-18 14:11:16 -07:00 • committed by Linus Torvalds

parent b2503a9408

commit b897878454

1 changed files with 7 additions and 10 deletions

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drivers/spi/spi_s3c24xx.c

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