diff options
| author | Emil Svendsen <emas@bang-olufsen.dk> | 2026-01-13 13:58:53 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-01-14 16:35:38 +0300 |
| commit | 8a98e7f55f975360975083166e21982ef307b8fd (patch) | |
| tree | 29fa9ef34c2c8674d932a6423f3a7cc1d8d427db | |
| parent | 2219823f7d6ac01c8eb55b90e954b4466146c397 (diff) | |
| download | linux-8a98e7f55f975360975083166e21982ef307b8fd.tar.xz | |
ASoC: tlv320adcx140: add channel sum control
Add control for channel summation.
3 modes are supported:
1. "Disabled": Normal operation
2. "2 Channel": Every two channels are summed and divided by 2
Out 1 <- (CH1 + CH2) / 2
Out 2 <- (CH1 + CH2) / 2
Out 3 <- (CH3 + CH4) / 2
Out 4 <- (CH3 + CH4) / 2
3. "4 Channel": Every four channels are summed and divided by 4
Out 1 <- (CH1 + CH2 + CH3 + CH4) / 4
Out 2 <- (CH1 + CH2 + CH3 + CH4) / 4
Out 3 <- (CH1 + CH2 + CH3 + CH4) / 4
Out 4 <- (CH1 + CH2 + CH3 + CH4) / 4
Signed-off-by: Emil Svendsen <emas@bang-olufsen.dk>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Link: https://patch.msgid.link/20260113-sound-soc-codecs-tvl320adcx140-v4-10-8f7ecec525c8@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
| -rw-r--r-- | sound/soc/codecs/tlv320adcx140.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320adcx140.c b/sound/soc/codecs/tlv320adcx140.c index e7c607af642f..ac6aab8d7224 100644 --- a/sound/soc/codecs/tlv320adcx140.c +++ b/sound/soc/codecs/tlv320adcx140.c @@ -222,6 +222,13 @@ static const struct snd_kcontrol_new decimation_filter_controls[] = { SOC_DAPM_ENUM("Decimation Filter", decimation_filter_enum), }; +static const char * const channel_summation_text[] = { + "Disabled", "2 Channel", "4 Channel" +}; + +static SOC_ENUM_SINGLE_DECL(channel_summation_enum, ADCX140_DSP_CFG0, 2, + channel_summation_text); + static const char * const pdmclk_text[] = { "2.8224 MHz", "1.4112 MHz", "705.6 kHz", "5.6448 MHz" }; @@ -711,6 +718,8 @@ static const struct snd_kcontrol_new adcx140_snd_controls[] = { ADCX140_PHASE_CALIB_SWITCH("Phase Calibration Switch"), SOC_SINGLE("Biquads Per Channel", ADCX140_DSP_CFG1, 5, 3, 0), + + SOC_ENUM("Channel Summation", channel_summation_enum), }; static int adcx140_reset(struct adcx140_priv *adcx140) |