From: Jaroslav Kysela <perex@perex.cz>
Date: Mon, 13 Apr 2009 18:45:42 +0000 (+0200)
Subject: [ALSA] intel8x0: an attempt to make ac97_clock measurement more reliable
X-Git-Tag: v2.6.30-rc3~86^2~5^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=920e4ae31cb113328e617f4a0663fb17d7b09124;p=pandora-kernel.git

[ALSA] intel8x0: an attempt to make ac97_clock measurement more reliable

- use monotonic posix clock to measure time
- try to avoid reading zero from PICB (position in current buffer) register
- show also measured samples
- when clock is near 41000 or 44100, use exactly these values
  (they appears to be reference clocks for hardware manufacturers)

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
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