Cap-less mode is useful e.g. if the headphones are used as an antenna
for a FM radio, so that the signal is not altered. For everything else,
we want the cap-couple mode.
Signed-off-by: Paul Cercueil <paul@xxxxxxxxxxxxxxx>
---
sound/soc/codecs/jz4770.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/sound/soc/codecs/jz4770.c b/sound/soc/codecs/jz4770.c
index 909b70e817b4..c9fe7f72bfcb 100644
--- a/sound/soc/codecs/jz4770.c
+++ b/sound/soc/codecs/jz4770.c
@@ -98,7 +98,7 @@ enum {
#define REG_CR_HP_MUTE BIT(7)
#define REG_CR_HP_LOAD BIT(6)
#define REG_CR_HP_SB_OFFSET 4
-#define REG_CR_HP_SB_HPCM BIT(3)
+#define REG_CR_HP_SB_HPCM_OFFSET 3
#define REG_CR_HP_SEL_OFFSET 0
#define REG_CR_HP_SEL_MASK (0x3 << REG_CR_HP_SEL_OFFSET)
@@ -519,6 +519,9 @@ static const struct snd_soc_dapm_widget jz4770_codec_dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("MICBIAS", JZ4770_CODEC_REG_CR_MIC,
REG_CR_MIC_BIAS_SB_OFFSET, 1, NULL, 0),
+ SND_SOC_DAPM_SUPPLY("Cap-less", JZ4770_CODEC_REG_CR_HP,
+ REG_CR_HP_SB_HPCM_OFFSET, 1, NULL, 0),
+
SND_SOC_DAPM_INPUT("MIC1P"),
SND_SOC_DAPM_INPUT("MIC1N"),
SND_SOC_DAPM_INPUT("MIC2P"),
@@ -640,7 +643,8 @@ static void jz4770_codec_codec_init_regs(struct snd_soc_component *codec)
regmap_set_bits(regmap, JZ4770_CODEC_REG_CR_ADC, REG_CR_ADC_LRSWAP);
/* default to cap-less mode(0) */
- regmap_clear_bits(regmap, JZ4770_CODEC_REG_CR_HP, REG_CR_HP_SB_HPCM);
+ regmap_clear_bits(regmap, JZ4770_CODEC_REG_CR_HP,
+ BIT(REG_CR_HP_SB_HPCM_OFFSET));
/* Send collected updates. */
regcache_cache_only(regmap, false);
--
2.29.2
