ath9k_hw: Add helper function for interpolation

Also round off interpolated values this would improve power
accuracy by 0.5dB in some cases.

Signed-off-by: Vasanthakumar Thiagarajan <vasanth@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Vasanthakumar Thiagarajan 2010-11-10 05:03:14 -08:00 • committed by John W. Linville
commit bc2068020b