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authorPaul Cercueil <paul@crapouillou.net>2020-12-07 12:53:37 +0000
committerMark Brown <broonie@kernel.org>2020-12-09 12:13:43 +0000
commite648e3f1165354f04a4deed1f41152a287b68d59 (patch)
treeae4cab0db9a085f1a4079aa55cb4a98b2e8fbf76 /sound
parent4f293dfea9f6d23a972be0e38556f5b0c02c2d4e (diff)
ASoC: codecs/jz4770: Add DAPM widget to set HP out to cap-less mode
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>
Diffstat (limited to 'sound')
-rw-r--r--sound/soc/codecs/jz4770.c8
1 files 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);