ASoC: twl6040: Add ramp up/down volume for HS and HF

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Add ramp functions for the headset and handsfree outputs
in order to reduce the pops during power on/off sequences.

In order to give more control to volume ramp, step size and delay
between steps can be specified.

The patches are based on wm8350 implementation from Liam
Girdwood.

Signed-off-by: Margarita Olaya Cabrera <magi.olaya@ti.com>
Signed-off-by: Misael Lopez Cruz <misael.lopez@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

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This commit is contained in:

Margarita Olaya Cabrera 2010-12-14 19:00:21 -06:00 • committed by Liam Girdwood

parent 65b7cecc85

commit 1bf84759bd

1 changed files with 521 additions and 12 deletions

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sound/soc/codecs/twl6040.c

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