drm/nva3: fix overflow in fixed point math used for pll calculation

And a slight tweak which gets us closer to VBIOS-calculated numbers.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-10-01 14:39:37 +10:00
commit 2a56a0b913