ASoC: tlv320aic3x: Add output driver pop reduction controls
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>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 9901400..f0a8281 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -279,6 +279,16 @@
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 @@
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[] = {