ASoC: Stop checking for supplied widgets after we find the first (f68d7e16) · Commits · 戴 / test

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>

sound/soc/soc-dapm.c

+3 −6

Original line number	Diff line number	Diff line
		@@ -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)

Admin message