diff options
Diffstat (limited to 'sound/soc/codecs/arizona.c')
| -rw-r--r-- | sound/soc/codecs/arizona.c | 39 |
1 files changed, 37 insertions, 2 deletions
diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c index 6837863b582d..debd184cc706 100644 --- a/sound/soc/codecs/arizona.c +++ b/sound/soc/codecs/arizona.c @@ -10,6 +10,7 @@ * published by the Free Software Foundation. */ +#include <linux/delay.h> #include <linux/gcd.h> #include <linux/module.h> #include <linux/pm_runtime.h> @@ -332,9 +333,27 @@ const struct soc_enum arizona_ng_hold = 4, arizona_ng_hold_text); EXPORT_SYMBOL_GPL(arizona_ng_hold); +static void arizona_in_set_vu(struct snd_soc_codec *codec, int ena) +{ + struct arizona_priv *priv = snd_soc_codec_get_drvdata(codec); + unsigned int val; + int i; + + if (ena) + val = ARIZONA_IN_VU; + else + val = 0; + + for (i = 0; i < priv->num_inputs; i++) + snd_soc_update_bits(codec, + ARIZONA_ADC_DIGITAL_VOLUME_1L + (i * 4), + ARIZONA_IN_VU, val); +} + int arizona_in_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { + struct arizona_priv *priv = snd_soc_codec_get_drvdata(w->codec); unsigned int reg; if (w->shift % 2) @@ -343,13 +362,29 @@ int arizona_in_ev(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, reg = ARIZONA_ADC_DIGITAL_VOLUME_1R + ((w->shift / 2) * 8); switch (event) { + case SND_SOC_DAPM_PRE_PMU: + priv->in_pending++; + break; case SND_SOC_DAPM_POST_PMU: snd_soc_update_bits(w->codec, reg, ARIZONA_IN1L_MUTE, 0); + + /* If this is the last input pending then allow VU */ + priv->in_pending--; + if (priv->in_pending == 0) { + msleep(1); + arizona_in_set_vu(w->codec, 1); + } break; case SND_SOC_DAPM_PRE_PMD: - snd_soc_update_bits(w->codec, reg, ARIZONA_IN1L_MUTE, - ARIZONA_IN1L_MUTE); + snd_soc_update_bits(w->codec, reg, + ARIZONA_IN1L_MUTE | ARIZONA_IN_VU, + ARIZONA_IN1L_MUTE | ARIZONA_IN_VU); break; + case SND_SOC_DAPM_POST_PMD: + /* Disable volume updates if no inputs are enabled */ + reg = snd_soc_read(w->codec, ARIZONA_INPUT_ENABLES); + if (reg == 0) + arizona_in_set_vu(w->codec, 0); } return 0; |