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ASoC: Stop checking for supplied widgets after we find the first 

We don't really care how many widgets a supply is supplying, we just care
if the number is non-zero. This didn't actually produce any improvement
in the test cases I've been using but seems obviously sensible enough that
I'm pushing it out anyway.

We could do a similar thing for other widgets but this may be unhelpful
for further refactorings Liam was working on aiming to allow us to
identify connected audio paths.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
hifive-unleashed-5.1
Mark Brown 2011-10-04 22:57:50 +01:00
parent f3bf3e456a
commit f68d7e1687
1 changed files with 3 additions and 6 deletions
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9
sound/soc/soc-dapm.c
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@ -851,7 +851,6 @@ static int dapm_dac_check_power(struct snd_soc_dapm_widget *w)
static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
{
struct snd_soc_dapm_path *path;
int power = 0;
DAPM_UPDATE_STAT(w, power_checks);
@ -869,15 +868,13 @@ static int dapm_supply_check_power(struct snd_soc_dapm_widget *w)
if (!path->sink)
continue;
if (dapm_widget_power_check(path->sink)) {
power = 1;
break;
}
if (dapm_widget_power_check(path->sink))
return 1;
}
dapm_clear_walk(w->dapm);
return power;
return 0;
}
static int dapm_always_on_check_power(struct snd_soc_dapm_widget *w)