tree e9ed254ec66ef280f0127561d5aede51c2b1f391
parent a820ccbe21e8ce8e86c39cd1d3bc8c7d1cbb949b
author Takashi Iwai <tiwai@suse.de> 1522769697 +0200
committer Takashi Iwai <tiwai@suse.de> 1523099225 +0200

ALSA: usb-audio: Refactor clock finder helpers

There are lots of open-coded functions to find a clock source,
selector and multiplier.  Now there are both v2 and v3, so six
variants.

This patch refactors the code to use a common helper for the main
loop, and define each validator function for each target.
There is no functional change.

Fixes: 9a2fe9b801f5 ("ALSA: usb: initial USB Audio Device Class 3.0 support")
Reviewed-by: Ruslan Bilovol <ruslan.bilovol@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>