tree a798ec85c798f134c1d31e5f9f241a1c9f0b7fe6
parent ae9d8607fe24253efc9f14b696f51cfd683801be
author Mark Brown <broonie@opensource.wolfsonmicro.com> 1269879521 +0100
committer Mark Brown <broonie@opensource.wolfsonmicro.com> 1270480802 +0100

ASoC: Don't use DCS_DATAPATH_BUSY for WM hubs devices

The DCS_DATAPATH_BUSY bit used to monitor the completion of DC servo
operations has been deprecated and with some more recente revisions
may perform incorrectly, especially when only analogue bypass paths
are in use. Switch to using readback from the DC servo command
register instead, which is supported for all devices. Without this
unacceptably long timeouts may be observed in some circumstances.

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