diff options
| -rw-r--r-- | include/sound/soc-dapm.h | 7 | ||||
| -rw-r--r-- | sound/soc/soc-dapm.c | 19 |
2 files changed, 23 insertions, 3 deletions
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index c1410e3191e3..67224db60348 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -333,6 +333,10 @@ struct snd_soc_dapm_route { const char *sink; const char *control; const char *source; + + /* Note: currently only supported for links where source is a supply */ + int (*connected)(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink); }; /* dapm audio path between two widgets */ @@ -349,6 +353,9 @@ struct snd_soc_dapm_path { u32 connect:1; /* source and sink widgets are connected */ u32 walked:1; /* path has been walked */ + int (*connected)(struct snd_soc_dapm_widget *source, + struct snd_soc_dapm_widget *sink); + struct list_head list_source; struct list_head list_sink; struct list_head list; diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 0d8b08ef8731..37f7adeae323 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -718,6 +718,10 @@ static int dapm_supply_check_power(struct snd_soc_dapm_widget *w) /* Check if one of our outputs is connected */ list_for_each_entry(path, &w->sinks, list_source) { + if (path->connected && + !path->connected(path->source, path->sink)) + continue; + if (path->sink && path->sink->power_check && path->sink->power_check(path->sink)) { power = 1; @@ -1136,6 +1140,9 @@ static ssize_t dapm_widget_power_read_file(struct file *file, w->sname); list_for_each_entry(p, &w->sources, list_sink) { + if (p->connected && !p->connected(w, p->sink)) + continue; + if (p->connect) ret += snprintf(buf + ret, PAGE_SIZE - ret, " in %s %s\n", @@ -1143,6 +1150,9 @@ static ssize_t dapm_widget_power_read_file(struct file *file, p->source->name); } list_for_each_entry(p, &w->sinks, list_source) { + if (p->connected && !p->connected(w, p->sink)) + continue; + if (p->connect) ret += snprintf(buf + ret, PAGE_SIZE - ret, " out %s %s\n", @@ -1385,10 +1395,13 @@ int snd_soc_dapm_sync(struct snd_soc_codec *codec) EXPORT_SYMBOL_GPL(snd_soc_dapm_sync); static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, - const char *sink, const char *control, const char *source) + const struct snd_soc_dapm_route *route) { struct snd_soc_dapm_path *path; struct snd_soc_dapm_widget *wsource = NULL, *wsink = NULL, *w; + const char *sink = route->sink; + const char *control = route->control; + const char *source = route->source; int ret = 0; /* find src and dest widgets */ @@ -1412,6 +1425,7 @@ static int snd_soc_dapm_add_route(struct snd_soc_codec *codec, path->source = wsource; path->sink = wsink; + path->connected = route->connected; INIT_LIST_HEAD(&path->list); INIT_LIST_HEAD(&path->list_source); INIT_LIST_HEAD(&path->list_sink); @@ -1512,8 +1526,7 @@ int snd_soc_dapm_add_routes(struct snd_soc_codec *codec, int i, ret; for (i = 0; i < num; i++) { - ret = snd_soc_dapm_add_route(codec, route->sink, - route->control, route->source); + ret = snd_soc_dapm_add_route(codec, route); if (ret < 0) { printk(KERN_ERR "Failed to add route %s->%s\n", route->source, |