The SAR ADC of key press detection varies depending on headset. We can't make a set of common threshold values for every case. Therefore, the driver provides configuration for user and they can set up values by UCM configuration.
Signed-off-by: John Hsu KCHSU0@nuvoton.com --- sound/soc/codecs/nau8824.c | 9 +++++++++ 1 file changed, 9 insertions(+)
diff --git a/sound/soc/codecs/nau8824.c b/sound/soc/codecs/nau8824.c index 637e952..76502c0 100644 --- a/sound/soc/codecs/nau8824.c +++ b/sound/soc/codecs/nau8824.c @@ -409,6 +409,15 @@ static const struct snd_kcontrol_new nau8824_snd_controls[] = {
SOC_SINGLE("DACL LR Mix", NAU8824_REG_DAC_MUTE_CTRL, 0, 1, 0), SOC_SINGLE("DACR LR Mix", NAU8824_REG_DAC_MUTE_CTRL, 1, 1, 0), + + SOC_SINGLE("THD for key media", + NAU8824_REG_VDET_THRESHOLD_1, 8, 0xff, 0), + SOC_SINGLE("THD for key voice command", + NAU8824_REG_VDET_THRESHOLD_1, 0, 0xff, 0), + SOC_SINGLE("THD for key volume up", + NAU8824_REG_VDET_THRESHOLD_2, 8, 0xff, 0), + SOC_SINGLE("THD for key volume down", + NAU8824_REG_VDET_THRESHOLD_2, 0, 0xff, 0), };
static int nau8824_output_dac_event(struct snd_soc_dapm_widget *w,