ASoC: DAPM: Allow multiple mixer sources to be routed via the same switch

Currently it is only possible to route one source per switch into a mixer.
This patch modifies the code, so that it is possible to route multiple sources
into a mixer via the same switch. One use-case for this is routing a stereo
channel pair into a mono-mixer via the same switch.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index c26531132c66..170c4ffa609f 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -443,6 +443,11 @@ static int dapm_new_mixer(struct snd_soc_dapm_widget *w)
                         if (path->name != (char *)w->kcontrol_news[i].name)
                                 continue;
 
+                        if (w->kcontrols[i]) {
+                                path->kcontrol = w->kcontrols[i];
+                                continue;
+                        }
+
                         wlistsize = sizeof(struct snd_soc_dapm_widget_list) +
                                     sizeof(struct snd_soc_dapm_widget *),
                         wlist = kzalloc(wlistsize, GFP_KERNEL);
@@ -1556,7 +1561,6 @@ static int dapm_mixer_update_power(struct snd_soc_dapm_widget *widget,
                 /* found, now check type */
                 found = 1;
                 path->connect = connect;
-                break;
         }
 
         if (found)