diff options
Diffstat (limited to 'sound/soc/sunxi/sun8i-codec-analog.c')
| -rw-r--r-- | sound/soc/sunxi/sun8i-codec-analog.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/sound/soc/sunxi/sun8i-codec-analog.c b/sound/soc/sunxi/sun8i-codec-analog.c index af02290ebe49..72331332b72e 100644 --- a/sound/soc/sunxi/sun8i-codec-analog.c +++ b/sound/soc/sunxi/sun8i-codec-analog.c @@ -398,11 +398,37 @@ static const struct snd_kcontrol_new sun8i_codec_hp_src[] = { sun8i_codec_hp_src_enum), }; +static int sun8i_headphone_amp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *k, int event) +{ + struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); + + if (SND_SOC_DAPM_EVENT_ON(event)) { + snd_soc_component_update_bits(component, SUN8I_ADDA_PAEN_HP_CTRL, + BIT(SUN8I_ADDA_PAEN_HP_CTRL_HPPAEN), + BIT(SUN8I_ADDA_PAEN_HP_CTRL_HPPAEN)); + /* + * Need a delay to have the amplifier up. 700ms seems the best + * compromise between the time to let the amplifier up and the + * time not to feel this delay while playing a sound. + */ + msleep(700); + } else if (SND_SOC_DAPM_EVENT_OFF(event)) { + snd_soc_component_update_bits(component, SUN8I_ADDA_PAEN_HP_CTRL, + BIT(SUN8I_ADDA_PAEN_HP_CTRL_HPPAEN), + 0x0); + } + + return 0; +} + static const struct snd_soc_dapm_widget sun8i_codec_headphone_widgets[] = { SND_SOC_DAPM_MUX("Headphone Source Playback Route", SND_SOC_NOPM, 0, 0, sun8i_codec_hp_src), - SND_SOC_DAPM_OUT_DRV("Headphone Amp", SUN8I_ADDA_PAEN_HP_CTRL, - SUN8I_ADDA_PAEN_HP_CTRL_HPPAEN, 0, NULL, 0), + SND_SOC_DAPM_OUT_DRV_E("Headphone Amp", SUN8I_ADDA_PAEN_HP_CTRL, + SUN8I_ADDA_PAEN_HP_CTRL_HPPAEN, 0, NULL, 0, + sun8i_headphone_amp_event, + SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD), SND_SOC_DAPM_SUPPLY("HPCOM Protection", SUN8I_ADDA_PAEN_HP_CTRL, SUN8I_ADDA_PAEN_HP_CTRL_COMPTEN, 0, NULL, 0), SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPCOM", SUN8I_ADDA_PAEN_HP_CTRL, |