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3 Commits

Author SHA1 Message Date
Mark Brown
fbc2dae854 ASoC: Support GPIO based microphone detection for WM8904 
The WM8904 allows microphone detection signals to be brought out as
alternate functions of the GPIO signals which can be detected using
interrupt inputs on the CPU. Allow this to be configured using
platform data.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
 2010-03-16 16:03:30 +00:00
Mark Brown
cdce4e9ba7 ASoC: Allow configuration of WM8904 GPIO pin functions 
Provide platform data allowing the configuration of the GPIO pins
on the WM8904 to be selected, allowing alternate functions to be
enabled.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
 2010-03-16 15:58:08 +00:00
Mark Brown
a91eb199e4 ASoC: Initial WM8904 CODEC driver 
The WM8904 is a high performance ultra-low power stereo CODEC
optimised for portable audio applications, with features including
a class W amplifier, FLL with free running mode, Mobile ReTune and
ground referenced headphone and line outputs.

Support for some features, most particularly the digital microphone
interface, is not yet present.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
 2009-12-04 16:50:53 +00:00