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ASoC: codecs/jz4770: Add DAPM widget to set HP out to cap-less mode

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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@crapouillou.net>
Link: https://lore.kernel.org/r/20201207125338.119397-5-paul@crapouillou.net
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Paul Cercueil 2020-12-07 12:53:37 +00:00 committed by Mark Brown
parent 4f293dfea9
commit e648e3f116
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GPG Key ID: 24D68B725D5487D0
1 changed files with 6 additions and 2 deletions
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8
sound/soc/codecs/jz4770.c
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@ -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);