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ASoC: TWL4030: Add helper function for output gain controls
authorPeter Ujfalusi <peter.ujfalusi@nokia.com>
Mon, 24 Nov 2008 11:49:38 +0000 (13:49 +0200)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Mon, 24 Nov 2008 14:05:40 +0000 (14:05 +0000)
commitb0bd53a7399f65e2d1b37cd44c5003e55b886c1e
treeb79033f663fd326322c7c91b01c57724f6ee4c7dtree | snapshot
parent0d33ea0b0f954dddd3996597c663c111249d4df9commit | diff
ASoC: TWL4030: Add helper function for output gain controls

Some of the gain controls in TWL (mostly those which are associated with
the outputs) are implemented in an interesting way:
 0x0 : Power down (mute)
 0x1 : 6dB
 0x2 : 0 dB
 0x3 : -6 dB
Inverting not going to help with these.
Custom volsw and volsw_2r get/put functions to handle these gains.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@nokia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
sound/soc/codecs/twl4030.c diff | blob | history
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