ASoC: Reduce the number of neigbours we mark dirty when updating power (fe4fda5d) · Commits · 戴 / test

sound/soc/soc-dapm.c

+20 −6

Original line number	Diff line number	Diff line
		@@ -1215,6 +1215,21 @@ static void dapm_post_sequence_async(void *data, async_cookie_t cookie)
		}
		}

		static void dapm_widget_set_peer_power(struct snd_soc_dapm_widget *peer,
		bool power, bool connect)
		{
		/* If a connection is being made or broken then that update
		* will have marked the peer dirty, otherwise the widgets are
		* not connected and this update has no impact. */
		if (!connect)
		return;

		/* If the peer is already in the state we're moving to then we
		* won't have an impact on it. */
		if (power != peer->power)
		dapm_mark_dirty(peer);
		}

		static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power,
		struct list_head *up_list,
		struct list_head *down_list)
		@@ -1227,19 +1242,18 @@ static void dapm_widget_set_power(struct snd_soc_dapm_widget *w, bool power,
		trace_snd_soc_dapm_widget_power(w, power);

		/* If we changed our power state perhaps our neigbours changed
		* also. We're not yet smart enough to update relevant
		* neighbours when we change the state of a widget, this acts
		* as a proxy for that. It will notify more neighbours than
		* is ideal.
		* also.
		*/
		list_for_each_entry(path, &w->sources, list_sink) {
		if (path->source) {
		dapm_mark_dirty(path->source);
		dapm_widget_set_peer_power(path->source, power,
		path->connect);
		}
		}
		list_for_each_entry(path, &w->sinks, list_source) {
		if (path->sink) {
		dapm_mark_dirty(path->sink);
		dapm_widget_set_peer_power(path->sink, power,
		path->connect);
		}
		}