ASoC: TWL4030: Add functionalty to reset the registers

Browse source

Machine driver can instruct the codec driver to reset the
chip registers to their default values at probe time.

If machine driver does not provide setup data, then the
registers are going to be reseted to their defaults, to
be safe.

If the developer on the platform confirms that the register
reset is not needed, than it can be skipped, saving ~20ms
time in probe.

As safety measure do the register reset at remove time also.

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

...

This commit is contained in:

Peter Ujfalusi 2010-05-26 11:38:21 +03:00 • committed by Liam Girdwood

parent 2046f175bc

commit a3a29b55c7

2 changed files with 18 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

17

sound/soc/codecs/twl4030.c

View file

1

sound/soc/codecs/twl4030.h

View file