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drm/i915: fix up a raw 64bit divide

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We are seeing compilation failures on i386 in some environments due
to an undefined reference as below:

    ERROR: "__udivdi3" [drivers/gpu/drm/i915/i915.ko] undefined!

This is generated due to a raw 64 bit divide in the i915 driver.  Fix up
this raw divide.

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
This commit is contained in:
Andy Whitcroft 2009-07-01 15:20:59 +01:00 committed by Eric Anholt
parent 12682a9711
commit 956dba3caa
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/i915/intel_display.c
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@ -1577,7 +1577,7 @@ igdng_compute_m_n(int bytes_per_pixel, int nlanes,
temp = (u64) DATA_N * pixel_clock;
temp = div_u64(temp, link_clock);
m_n->gmch_m = (temp * bytes_per_pixel) / nlanes;
m_n->gmch_m = div_u64(temp * bytes_per_pixel, nlanes);
m_n->gmch_n = DATA_N;
fdi_reduce_ratio(&m_n->gmch_m, &m_n->gmch_n);