From: "Dr. David Alan Gilbert" <linux@treblig.org>

snd_jack_set_parent() was added as part of 2008's
commit e76d8ceaaff9 ("ALSA: Add jack reporting API")

but hasn't been used.

Remove it.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
---
 include/sound/jack.h |  6 ------
 sound/core/jack.c    | 19 -------------------
 2 files changed, 25 deletions(-)

diff --git a/include/sound/jack.h b/include/sound/jack.h
index 1ed90e2109e9..36dc104c1145 100644
--- a/include/sound/jack.h
+++ b/include/sound/jack.h
@@ -79,7 +79,6 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 		 struct snd_jack **jack, bool initial_kctl, bool phantom_jack);
 int snd_jack_add_new_kctl(struct snd_jack *jack, const char * name, int mask);
 #ifdef CONFIG_SND_JACK_INPUT_DEV
-void snd_jack_set_parent(struct snd_jack *jack, struct device *parent);
 int snd_jack_set_key(struct snd_jack *jack, enum snd_jack_types type,
 		     int keytype);
 #endif
@@ -104,11 +103,6 @@ static inline void snd_jack_report(struct snd_jack *jack, int status)
 #endif
 
 #if !defined(CONFIG_SND_JACK) || !defined(CONFIG_SND_JACK_INPUT_DEV)
-static inline void snd_jack_set_parent(struct snd_jack *jack,
-				       struct device *parent)
-{
-}
-
 static inline int snd_jack_set_key(struct snd_jack *jack,
 				   enum snd_jack_types type,
 				   int keytype)
diff --git a/sound/core/jack.c b/sound/core/jack.c
index e4bcecdf89b7..850f82340278 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -574,25 +574,6 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 EXPORT_SYMBOL(snd_jack_new);
 
 #ifdef CONFIG_SND_JACK_INPUT_DEV
-/**
- * snd_jack_set_parent - Set the parent device for a jack
- *
- * @jack:   The jack to configure
- * @parent: The device to set as parent for the jack.
- *
- * Set the parent for the jack devices in the device tree.  This
- * function is only valid prior to registration of the jack.  If no
- * parent is configured then the parent device will be the sound card.
- */
-void snd_jack_set_parent(struct snd_jack *jack, struct device *parent)
-{
-	WARN_ON(jack->registered);
-	guard(mutex)(&jack->input_dev_lock);
-	if (jack->input_dev)
-		jack->input_dev->dev.parent = parent;
-}
-EXPORT_SYMBOL(snd_jack_set_parent);
-
 /**
  * snd_jack_set_key - Set a key mapping on a jack
  *
-- 
2.49.0