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authorTakashi Iwai <tiwai@suse.de>2015-01-13 11:24:08 +0100
committerTakashi Iwai <tiwai@suse.de>2015-01-28 22:30:12 +0100
commit1293617cddc40971917150e3f5bf66b7306e2e7e (patch)
tree857f6dd1c0c278f290963f7a3739f89d1652d98d
parenta850ef8afd3cd1eecd2e136f8dca0c06599eade8 (diff)
ALSA: ak411x: Add PM helper functions
Define snd_ak4114_suspend() and snd_ak4114_resume() functions to handle PM properly, stopping and restarting the work at PM. Currently only ice1712/juli.c deals with the PM and ak4114, so fix the calls there appropriately. The same PM functions are defined in ak4113.c, too, although they aren't currently called yet (ice1712/quartet.c may be enhanced to support PM later). Acked-by: Jaroslav Kysela <perex@perex.cz> Tested-by: Pavel Hofman <pavel.hofman@ivitera.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
-rw-r--r--include/sound/ak4113.h8
-rw-r--r--include/sound/ak4114.h8
-rw-r--r--sound/i2c/other/ak4113.c16
-rw-r--r--sound/i2c/other/ak4114.c16
-rw-r--r--sound/pci/ice1712/juli.c4
5 files changed, 51 insertions, 1 deletions
diff --git a/include/sound/ak4113.h b/include/sound/ak4113.h
index 3a34f6edc2d1..f4fbf6888e78 100644
--- a/include/sound/ak4113.h
+++ b/include/sound/ak4113.h
@@ -317,5 +317,13 @@ int snd_ak4113_build(struct ak4113 *ak4113,
int snd_ak4113_external_rate(struct ak4113 *ak4113);
int snd_ak4113_check_rate_and_errors(struct ak4113 *ak4113, unsigned int flags);
+#ifdef CONFIG_PM
+void snd_ak4113_suspend(struct ak4113 *chip);
+void snd_ak4113_resume(struct ak4113 *chip);
+#else
+static inline void snd_ak4113_suspend(struct ak4113 *chip) {}
+static inline void snd_ak4113_resume(struct ak4113 *chip) {}
+#endif
+
#endif /* __SOUND_AK4113_H */
diff --git a/include/sound/ak4114.h b/include/sound/ak4114.h
index 069299a88915..e681df2c95e1 100644
--- a/include/sound/ak4114.h
+++ b/include/sound/ak4114.h
@@ -199,5 +199,13 @@ int snd_ak4114_build(struct ak4114 *ak4114,
int snd_ak4114_external_rate(struct ak4114 *ak4114);
int snd_ak4114_check_rate_and_errors(struct ak4114 *ak4114, unsigned int flags);
+#ifdef CONFIG_PM
+void snd_ak4114_suspend(struct ak4114 *chip);
+void snd_ak4114_resume(struct ak4114 *chip);
+#else
+static inline void snd_ak4114_suspend(struct ak4114 *chip) {}
+static inline void snd_ak4114_resume(struct ak4114 *chip) {}
+#endif
+
#endif /* __SOUND_AK4114_H */
diff --git a/sound/i2c/other/ak4113.c b/sound/i2c/other/ak4113.c
index c6bba99a90b2..c2b14d981fa1 100644
--- a/sound/i2c/other/ak4113.c
+++ b/sound/i2c/other/ak4113.c
@@ -636,3 +636,19 @@ static void ak4113_stats(struct work_struct *work)
if (atomic_dec_and_test(&chip->wq_processing))
schedule_delayed_work(&chip->work, HZ / 10);
}
+
+#ifdef CONFIG_PM
+void snd_ak4113_suspend(struct ak4113 *chip)
+{
+ atomic_inc(&chip->wq_processing); /* don't schedule new work */
+ cancel_delayed_work_sync(&chip->work);
+}
+EXPORT_SYMBOL(snd_ak4113_suspend);
+
+void snd_ak4113_resume(struct ak4113 *chip)
+{
+ atomic_dec(&chip->wq_processing);
+ snd_ak4113_reinit(chip);
+}
+EXPORT_SYMBOL(snd_ak4113_resume);
+#endif
diff --git a/sound/i2c/other/ak4114.c b/sound/i2c/other/ak4114.c
index f6ee1e7a9bbd..ee639f57b664 100644
--- a/sound/i2c/other/ak4114.c
+++ b/sound/i2c/other/ak4114.c
@@ -621,3 +621,19 @@ static void ak4114_stats(struct work_struct *work)
if (atomic_dec_and_test(&chip->wq_processing))
schedule_delayed_work(&chip->work, HZ / 10);
}
+
+#ifdef CONFIG_PM
+void snd_ak4114_suspend(struct ak4114 *chip)
+{
+ atomic_inc(&chip->wq_processing); /* don't schedule new work */
+ cancel_delayed_work_sync(&chip->work);
+}
+EXPORT_SYMBOL(snd_ak4114_suspend);
+
+void snd_ak4114_resume(struct ak4114 *chip)
+{
+ atomic_dec(&chip->wq_processing);
+ snd_ak4114_reinit(chip);
+}
+EXPORT_SYMBOL(snd_ak4114_resume);
+#endif
diff --git a/sound/pci/ice1712/juli.c b/sound/pci/ice1712/juli.c
index a1536c1a7ed4..4f0213427152 100644
--- a/sound/pci/ice1712/juli.c
+++ b/sound/pci/ice1712/juli.c
@@ -491,15 +491,17 @@ static int juli_resume(struct snd_ice1712 *ice)
/* akm4358 un-reset, un-mute */
snd_akm4xxx_reset(ak, 0);
/* reinit ak4114 */
- snd_ak4114_reinit(spec->ak4114);
+ snd_ak4114_resume(spec->ak4114);
return 0;
}
static int juli_suspend(struct snd_ice1712 *ice)
{
struct snd_akm4xxx *ak = ice->akm;
+ struct juli_spec *spec = ice->spec;
/* akm4358 reset and soft-mute */
snd_akm4xxx_reset(ak, 1);
+ snd_ak4114_suspend(spec->ak4114);
return 0;
}
#endif