ASoC: snd_soc_dapm_get_pin_status: Match other contexts too

Not all widgets on a card are within the codec's DAPM context. Fix
snd_soc_dapm_get_pin_status to search all contexts when looking for a
widget.

This change is required when modifying tegra_wm8903 to use
snd_soc_card.widgets rather than calling snd_soc_dapm_new_controls; the
former adds the widgets to the card's DAPM context, whereas tegra_wm8903
uses the codec's DAPM context when calling snd_soc_dapm_new_controls.

By code inspection, I suspect this also applies to Samsung Speyside.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Liam Girdwood <lrg@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 2ee738c08ca4..4c868f9087f4 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -2403,6 +2403,12 @@ int snd_soc_dapm_get_pin_status(struct snd_soc_dapm_context *dapm,
                         return w->connected;
         }
 
+        /* Try again in other contexts */
+        list_for_each_entry(w, &dapm->card->widgets, list) {
+                if (!strcmp(w->name, pin))
+                        return w->connected;
+        }
+
         return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_dapm_get_pin_status);