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ASoC: dapm: Do not add un-muxed paths to MUX control 

Paths that are directly connected to a MUX widget are not affected by
changes to the MUX's control. Rather than checking if a path is directly
connected each time the MUX is updated do it only once when MUX is created.

We can also remove the check for e->texts[mux] != NULL, since if that
condition was true the code would have had already crashed much earlier (And
generally speaking if a enum's 'texts' entry is NULL it's a bug in the
driver).

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2014-10-25 17:41:57 +02:00 committed by Mark Brown
parent 4a2019480b
commit 98407efc13
1 changed files with 4 additions and 5 deletions
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9
sound/soc/soc-dapm.c
View File

@ -738,8 +738,10 @@ static int dapm_new_mux(struct snd_soc_dapm_widget *w)
if (ret < 0)
return ret;
list_for_each_entry(path, &w->sources, list_sink)
dapm_kcontrol_add_path(w->kcontrols[0], path);
list_for_each_entry(path, &w->sources, list_sink) {
if (path->name)
dapm_kcontrol_add_path(w->kcontrols[0], path);
}
return 0;
}
@ -1955,9 +1957,6 @@ static int soc_dapm_mux_update_power(struct snd_soc_card *card,
/* find dapm widget path assoc with kcontrol */
dapm_kcontrol_for_each_path(path, kcontrol) {
if (!path->name || !e->texts[mux])
continue;
found = 1;
/* we now need to match the string in the enum to the path */
if (!(strcmp(path->name, e->texts[mux])))