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ALSA: hda: Expose codec cleanup and power-save functions 

With few changes, snd_hda_codec_set_power_save() and
snd_hda_codec_cleanup_for_unbind() can be re-used by ASoC drivers.
While at it, provide kernel doc for the exposed functions.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220214101404.4074026-5-cezary.rojewski@intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Cezary Rojewski 2022-02-14 11:14:04 +01:00 committed by Takashi Iwai
parent 17e0c4cbb7
commit bb682f7a91
3 changed files with 15 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/sound/hda_codec.h
View File

@ -318,6 +318,7 @@ int snd_hda_codec_configure(struct hda_codec *codec);
int snd_hda_codec_update_widgets(struct hda_codec *codec);
void snd_hda_codec_register(struct hda_codec *codec);
void snd_hda_codec_unregister(struct hda_codec *codec);
void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
/*
* low level functions
@ -496,9 +497,11 @@ int hda_call_check_power_status(struct hda_codec *codec, hda_nid_t nid)
#define snd_hda_power_down(codec) snd_hdac_power_down(&(codec)->core)
#define snd_hda_power_down_pm(codec) snd_hdac_power_down_pm(&(codec)->core)
#ifdef CONFIG_PM
void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay);
void snd_hda_set_power_save(struct hda_bus *bus, int delay);
void snd_hda_update_power_acct(struct hda_codec *codec);
#else
static inline void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay) {}
static inline void snd_hda_set_power_save(struct hda_bus *bus, int delay) {}
#endif

14
sound/pci/hda/hda_codec.c
View File

@ -766,6 +766,10 @@ static void codec_release_pcms(struct hda_codec *codec)
}
}
/**
* snd_hda_codec_cleanup_for_unbind - Prepare codec for removal
* @codec: codec device to cleanup
*/
void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec)
{
if (codec->registered) {
@ -3401,7 +3405,12 @@ int snd_hda_add_new_ctls(struct hda_codec *codec,
EXPORT_SYMBOL_GPL(snd_hda_add_new_ctls);
#ifdef CONFIG_PM
static void codec_set_power_save(struct hda_codec *codec, int delay)
/**
* snd_hda_codec_set_power_save - Configure codec's runtime PM
* @codec: codec device to configure
* @delay: autosuspend delay
*/
void snd_hda_codec_set_power_save(struct hda_codec *codec, int delay)
{
struct device *dev = hda_codec_dev(codec);
@ -3419,6 +3428,7 @@ static void codec_set_power_save(struct hda_codec *codec, int delay)
pm_runtime_forbid(dev);
}
}
EXPORT_SYMBOL_GPL(snd_hda_codec_set_power_save);
/**
* snd_hda_set_power_save - reprogram autosuspend for the given delay
@ -3432,7 +3442,7 @@ void snd_hda_set_power_save(struct hda_bus *bus, int delay)
struct hda_codec *c;
list_for_each_codec(c, bus)
codec_set_power_save(c, delay);
snd_hda_codec_set_power_save(c, delay);
}
EXPORT_SYMBOL_GPL(snd_hda_set_power_save);

1
sound/pci/hda/hda_local.h
View File

@ -135,7 +135,6 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
#define snd_hda_add_vmaster(codec, name, tlv, followers, suffix, access) \
__snd_hda_add_vmaster(codec, name, tlv, followers, suffix, true, access, NULL)
int snd_hda_codec_reset(struct hda_codec *codec);
void snd_hda_codec_cleanup_for_unbind(struct hda_codec *codec);
void snd_hda_codec_disconnect_pcms(struct hda_codec *codec);
#define snd_hda_regmap_sync(codec) snd_hdac_regmap_sync(&(codec)->core)