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yaml
---
r: 148185
b: refs/heads/master
c: 025756e
h: refs/heads/master
i:
  148183: 3829857
v: v3
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Mark Brown committed Apr 13, 2009
1 parent c1750ff commit 025de47
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Showing 2 changed files with 61 additions and 51 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: f4976116a98f108bf385f217332aadb3ca98fe66
refs/heads/master: 025756eca458b4a3d5e3d76baaffb2e8e3df79db
110 changes: 60 additions & 50 deletions trunk/sound/soc/soc-dapm.c
Original file line number Diff line number Diff line change
Expand Up @@ -522,6 +522,65 @@ int dapm_reg_event(struct snd_soc_dapm_widget *w,
}
EXPORT_SYMBOL_GPL(dapm_reg_event);

/* Standard power change method, used to apply power changes to most
* widgets.
*/
static int dapm_generic_apply_power(struct snd_soc_dapm_widget *w)
{
int ret;

/* call any power change event handlers */
if (w->event)
pr_debug("power %s event for %s flags %x\n",
w->power ? "on" : "off",
w->name, w->event_flags);

/* power up pre event */
if (w->power && w->event &&
(w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
if (ret < 0)
return ret;
}

/* power down pre event */
if (!w->power && w->event &&
(w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
if (ret < 0)
return ret;
}

/* Lower PGA volume to reduce pops */
if (w->id == snd_soc_dapm_pga && !w->power)
dapm_set_pga(w, w->power);

dapm_update_bits(w);

/* Raise PGA volume to reduce pops */
if (w->id == snd_soc_dapm_pga && w->power)
dapm_set_pga(w, w->power);

/* power up post event */
if (w->power && w->event &&
(w->event_flags & SND_SOC_DAPM_POST_PMU)) {
ret = w->event(w,
NULL, SND_SOC_DAPM_POST_PMU);
if (ret < 0)
return ret;
}

/* power down post event */
if (!w->power && w->event &&
(w->event_flags & SND_SOC_DAPM_POST_PMD)) {
ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
if (ret < 0)
return ret;
}

return 0;
}

/*
* Scan a single DAPM widget for a complete audio path and update the
* power status appropriately.
Expand Down Expand Up @@ -601,56 +660,7 @@ static int dapm_power_widget(struct snd_soc_codec *codec, int event,
if (!power_change)
return 0;

/* call any power change event handlers */
if (w->event)
pr_debug("power %s event for %s flags %x\n",
w->power ? "on" : "off",
w->name, w->event_flags);

/* power up pre event */
if (power && w->event &&
(w->event_flags & SND_SOC_DAPM_PRE_PMU)) {
ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMU);
if (ret < 0)
return ret;
}

/* power down pre event */
if (!power && w->event &&
(w->event_flags & SND_SOC_DAPM_PRE_PMD)) {
ret = w->event(w, NULL, SND_SOC_DAPM_PRE_PMD);
if (ret < 0)
return ret;
}

/* Lower PGA volume to reduce pops */
if (w->id == snd_soc_dapm_pga && !power)
dapm_set_pga(w, power);

dapm_update_bits(w);

/* Raise PGA volume to reduce pops */
if (w->id == snd_soc_dapm_pga && power)
dapm_set_pga(w, power);

/* power up post event */
if (power && w->event &&
(w->event_flags & SND_SOC_DAPM_POST_PMU)) {
ret = w->event(w,
NULL, SND_SOC_DAPM_POST_PMU);
if (ret < 0)
return ret;
}

/* power down post event */
if (!power && w->event &&
(w->event_flags & SND_SOC_DAPM_POST_PMD)) {
ret = w->event(w, NULL, SND_SOC_DAPM_POST_PMD);
if (ret < 0)
return ret;
}

return 0;
return dapm_generic_apply_power(w);
}

/*
Expand Down

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