From: Max Krummenacher max.krummenacher@toradex.com
This control inverts the signal fed to the right amplifier. This allows to connect one loudspeaker to the two speaker amplifiers in a bridge-tied load configuration getting higher output power.
Signed-off-by: Max Krummenacher max.krummenacher@toradex.com Signed-off-by: Francesco Dolcini francesco.dolcini@toradex.com --- sound/soc/codecs/nau8822.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/sound/soc/codecs/nau8822.c b/sound/soc/codecs/nau8822.c index 58123390c7a3..bf1155903421 100644 --- a/sound/soc/codecs/nau8822.c +++ b/sound/soc/codecs/nau8822.c @@ -351,6 +351,8 @@ static const struct snd_kcontrol_new nau8822_snd_controls[] = { NAU8822_REG_LHP_VOLUME, NAU8822_REG_RHP_VOLUME, 0, 63, 0, spk_tlv),
+ SOC_SINGLE("Speaker RInversion Switch", + NAU8822_REG_RIGHT_SPEAKER_CONTROL, 4, 1, 0), SOC_DOUBLE_R("Speaker ZC Switch", NAU8822_REG_LSPKOUT_VOLUME, NAU8822_REG_RSPKOUT_VOLUME, 7, 1, 0),