diff options
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/codecs/adau7002.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/sound/soc/codecs/adau7002.c b/sound/soc/codecs/adau7002.c index fdff86878287..a8deb37fc78a 100644 --- a/sound/soc/codecs/adau7002.c +++ b/sound/soc/codecs/adau7002.c @@ -8,6 +8,7 @@ */ #include <linux/acpi.h> +#include <linux/delay.h> #include <linux/init.h> #include <linux/module.h> #include <linux/of.h> @@ -15,12 +16,55 @@ #include <sound/soc.h> +struct adau7002_priv { + int wakeup_delay; +}; + +static int adau7002_aif_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + struct snd_soc_component *component = + snd_soc_dapm_to_component(w->dapm); + struct adau7002_priv *adau7002 = + snd_soc_component_get_drvdata(component); + + switch (event) { + case SND_SOC_DAPM_POST_PMU: + if (adau7002->wakeup_delay) + msleep(adau7002->wakeup_delay); + break; + } + + return 0; +} + +static int adau7002_component_probe(struct snd_soc_component *component) +{ + struct adau7002_priv *adau7002; + + adau7002 = devm_kzalloc(component->dev, sizeof(*adau7002), + GFP_KERNEL); + if (!adau7002) + return -ENOMEM; + + device_property_read_u32(component->dev, "wakeup-delay-ms", + &adau7002->wakeup_delay); + + snd_soc_component_set_drvdata(component, adau7002); + + return 0; +} + static const struct snd_soc_dapm_widget adau7002_widgets[] = { + SND_SOC_DAPM_AIF_OUT_E("ADAU AIF", "Capture", 0, + SND_SOC_NOPM, 0, 0, adau7002_aif_event, + SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_INPUT("PDM_DAT"), SND_SOC_DAPM_REGULATOR_SUPPLY("IOVDD", 0, 0), }; static const struct snd_soc_dapm_route adau7002_routes[] = { + { "ADAU AIF", NULL, "PDM_DAT"}, { "Capture", NULL, "PDM_DAT" }, { "Capture", NULL, "IOVDD" }, }; @@ -40,6 +84,7 @@ static struct snd_soc_dai_driver adau7002_dai = { }; static const struct snd_soc_component_driver adau7002_component_driver = { + .probe = adau7002_component_probe, .dapm_widgets = adau7002_widgets, .num_dapm_widgets = ARRAY_SIZE(adau7002_widgets), .dapm_routes = adau7002_routes, |