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ASoC: Factor out per-widget DAPM power checks
The indentation is getting a little deep. Should be straight code motion, no functional changes. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
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@ -1191,6 +1191,65 @@ static void dapm_post_sequence_async(void *data, async_cookie_t cookie)
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}
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}
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static void dapm_power_one_widget(struct snd_soc_dapm_widget *w,
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struct list_head *up_list,
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struct list_head *down_list)
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{
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struct snd_soc_dapm_context *d;
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int power;
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switch (w->id) {
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case snd_soc_dapm_pre:
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dapm_seq_insert(w, down_list, false);
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break;
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case snd_soc_dapm_post:
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dapm_seq_insert(w, up_list, true);
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break;
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default:
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if (!w->power_check)
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break;
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if (!w->force)
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power = w->power_check(w);
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else
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power = 1;
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if (power) {
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d = w->dapm;
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/* Supplies and micbiases only bring the
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* context up to STANDBY as unless something
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* else is active and passing audio they
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* generally don't require full power.
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*/
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switch (w->id) {
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case snd_soc_dapm_supply:
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case snd_soc_dapm_micbias:
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if (d->target_bias_level < SND_SOC_BIAS_STANDBY)
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d->target_bias_level = SND_SOC_BIAS_STANDBY;
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break;
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default:
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d->target_bias_level = SND_SOC_BIAS_ON;
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break;
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}
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}
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if (w->power == power)
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break;
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trace_snd_soc_dapm_widget_power(w, power);
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if (power)
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dapm_seq_insert(w, up_list, true);
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else
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dapm_seq_insert(w, down_list, false);
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w->power = power;
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break;
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}
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}
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/*
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* Scan each dapm widget for complete audio path.
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* A complete path is a route that has valid endpoints i.e.:-
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@ -1209,7 +1268,6 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
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LIST_HEAD(down_list);
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LIST_HEAD(async_domain);
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enum snd_soc_bias_level bias;
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int power;
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trace_snd_soc_dapm_start(card);
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@ -1228,57 +1286,7 @@ static int dapm_power_widgets(struct snd_soc_dapm_context *dapm, int event)
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* lists indicating if they should be powered up or down.
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*/
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list_for_each_entry(w, &card->widgets, list) {
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switch (w->id) {
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case snd_soc_dapm_pre:
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dapm_seq_insert(w, &down_list, false);
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break;
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case snd_soc_dapm_post:
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dapm_seq_insert(w, &up_list, true);
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break;
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default:
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if (!w->power_check)
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continue;
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if (!w->force)
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power = w->power_check(w);
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else
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power = 1;
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if (power) {
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d = w->dapm;
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/* Supplies and micbiases only bring
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* the context up to STANDBY as unless
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* something else is active and
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* passing audio they generally don't
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* require full power.
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*/
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switch (w->id) {
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case snd_soc_dapm_supply:
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case snd_soc_dapm_micbias:
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if (d->target_bias_level < SND_SOC_BIAS_STANDBY)
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d->target_bias_level = SND_SOC_BIAS_STANDBY;
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break;
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default:
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d->target_bias_level = SND_SOC_BIAS_ON;
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break;
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}
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}
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if (w->power == power)
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continue;
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trace_snd_soc_dapm_widget_power(w, power);
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if (power)
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dapm_seq_insert(w, &up_list, true);
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else
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dapm_seq_insert(w, &down_list, false);
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w->power = power;
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break;
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}
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dapm_power_one_widget(w, &up_list, &down_list);
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}
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/* If there are no DAPM widgets then try to figure out power from the
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