Skip to content

ASoC: iqaudio-codec: Add mic-only start-up delay #7535

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
pelwell wants to merge 1 commit into
base: rpi-6.18.y
Choose a base branch
from
+13 −14
Open

ASoC: iqaudio-codec: Add mic-only start-up delay #7535

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
27 changes: 13 additions & 14 deletions sound/soc/bcm/iqaudio-codec.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -59,20 +59,15 @@ static int snd_rpi_iqaudio_pll_control(struct snd_soc_dapm_widget *w,
return ret;
}

static int snd_rpi_iqaudio_post_dapm_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
static int snd_rpi_iqaudio_mic_bias_event(struct snd_soc_dapm_widget *w,
struct snd_kcontrol *kcontrol,
int event)
{
switch (event) {
case SND_SOC_DAPM_POST_PMU:
/* Delay for mic bias ramp */
msleep(1000);
break;
default:
break;
}

return 0;
if (event == SND_SOC_DAPM_POST_PMU)
/* Delay for mic bias ramp */
msleep(1000);

return 0;
}

static const struct snd_kcontrol_new dapm_controls[] = {
Expand All @@ -90,7 +85,9 @@ static const struct snd_soc_dapm_widget dapm_widgets[] = {
SND_SOC_DAPM_SUPPLY("PLL Control", SND_SOC_NOPM, 0, 0,
snd_rpi_iqaudio_pll_control,
SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
SND_SOC_DAPM_POST("Post Power Up Event", snd_rpi_iqaudio_post_dapm_event),
SND_SOC_DAPM_SUPPLY("Mic Bias Ramp", SND_SOC_NOPM, 0, 0,
snd_rpi_iqaudio_mic_bias_event,
SND_SOC_DAPM_POST_PMU),
};

static const struct snd_soc_dapm_route audio_map[] = {
Expand All @@ -105,8 +102,10 @@ static const struct snd_soc_dapm_route audio_map[] = {
/* Assume Mic1 is linked to Headset and Mic2 to on-board mic */
{"MIC1", NULL, "MIC Jack"},
{"MIC Jack", NULL, "PLL Control"},
{"MIC Jack", NULL, "Mic Bias Ramp"},
{"MIC2", NULL, "Onboard MIC"},
{"Onboard MIC", NULL, "PLL Control"},
{"Onboard MIC", NULL, "Mic Bias Ramp"},
};

/* machine stream operations */
Expand Down
Loading