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[3/3] ASoC: dapm: Add snd_soc_dapm_kcontrol_widget()

Message ID 1445355532-28310-4-git-send-email-vinod.koul@intel.com (mailing list archive)
State Accepted
Commit 93e39a11520c000c9086215460bf27b35b09c724
Headers show

Commit Message

Vinod Koul Oct. 20, 2015, 3:38 p.m. UTC 
From: Mythri P K <mythri.p.k@intel.com>

Given a kcontrol, we may want to access the parent widget
and it's associated data. So export function to return it.

Signed-off-by: Mythri P K <mythri.p.k@intel.com>
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 include/sound/soc-dapm.h |  3 +++
 sound/soc/soc-dapm.c     | 12 ++++++++++++
 2 files changed, 15 insertions(+)
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Patch

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 5abba037d245..7855cfe46b69 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -451,6 +451,9 @@  int snd_soc_dapm_dai_get_connected_widgets(struct snd_soc_dai *dai, int stream,
 struct snd_soc_dapm_context *snd_soc_dapm_kcontrol_dapm(
 	struct snd_kcontrol *kcontrol);
 
+struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget(
+		struct snd_kcontrol *kcontrol);
+
 int snd_soc_dapm_force_bias_level(struct snd_soc_dapm_context *dapm,
 	enum snd_soc_bias_level level);
 
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index ef8064df2678..d54ee252ba74 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -509,6 +509,18 @@  static bool dapm_kcontrol_set_value(const struct snd_kcontrol *kcontrol,
 }
 
 /**
+ * snd_soc_dapm_kcontrol_widget() - Returns the widget associated to a
+ *   kcontrol
+ * @kcontrol: The kcontrol
+ */
+struct snd_soc_dapm_widget *snd_soc_dapm_kcontrol_widget(
+				struct snd_kcontrol *kcontrol)
+{
+	return dapm_kcontrol_get_wlist(kcontrol)->widgets[0];
+}
+EXPORT_SYMBOL_GPL(snd_soc_dapm_kcontrol_widget);
+
+/**
  * snd_soc_dapm_kcontrol_dapm() - Returns the dapm context associated to a
  *  kcontrol
  * @kcontrol: The kcontrol