From: Misael Lopez Cruz misael.lopez@ti.com
Output driver has two parameters that can be configured to reduce pop noise: power-on delay and ramp-up step time. Two new kcontrols have been added to set these parameters.
Signed-off-by: Misael Lopez Cruz misael.lopez@ti.com Signed-off-by: Peter Ujfalusi peter.ujfalusi@ti.com --- sound/soc/codecs/tlv320aic3x.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index 990140058aa6..f0a828119aba 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -279,6 +279,16 @@ static SOC_ENUM_SINGLE_DECL(aic3x_lagc_decay_enum, LAGC_CTRL_A, 0, static SOC_ENUM_SINGLE_DECL(aic3x_ragc_decay_enum, RAGC_CTRL_A, 0, aic3x_agc_decay);
+static const char * const aic3x_poweron_time[] = { + "0us", "10us", "100us", "1ms", "10ms", "50ms", + "100ms", "200ms", "400ms", "800ms", "2s", "4s" }; +static SOC_ENUM_SINGLE_DECL(aic3x_poweron_time_enum, HPOUT_POP_REDUCTION, 4, + aic3x_poweron_time); + +static const char * const aic3x_rampup_step[] = { "0ms", "1ms", "2ms", "4ms" }; +static SOC_ENUM_SINGLE_DECL(aic3x_rampup_step_enum, HPOUT_POP_REDUCTION, 2, + aic3x_rampup_step); + /* * DAC digital volumes. From -63.5 to 0 dB in 0.5 dB steps */ @@ -408,6 +418,10 @@ static const struct snd_kcontrol_new aic3x_snd_controls[] = { SOC_DOUBLE_R("PGA Capture Switch", LADC_VOL, RADC_VOL, 7, 0x01, 1),
SOC_ENUM("ADC HPF Cut-off", aic3x_adc_hpf_enum), + + /* Pop reduction */ + SOC_ENUM("Output Driver Power-On time", aic3x_poweron_time_enum), + SOC_ENUM("Output Driver Ramp-up step", aic3x_rampup_step_enum), };
static const struct snd_kcontrol_new aic3x_mono_controls[] = {