tree c1701c27b37b21c53daec55f730162757511e041
parent 3fa49e3ad9ac20b15edfb0c51bbad36e45a84b17
author Mark Brown <broonie@opensource.wolfsonmicro.com> 1269878985 +0100
committer Mark Brown <broonie@opensource.wolfsonmicro.com> 1270480749 +0100

ASoC: Support second DC servo readback method for wm_hubs

More recent Wolfson hubs devices add the ability to read back the DC
servo calibration information from the register used to write offsets,
and later still ones remove the old readback registers. Add support
for the new scheme, and use it for WM8994 device revisions that
support it.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>