diff options
| author | Takashi Iwai <tiwai@suse.de> | 2026-04-09 11:38:14 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2026-04-09 12:05:54 +0200 |
| commit | b0762dd2fcab5b8b4b953314f3f6eb9d92bc16bc (patch) | |
| tree | 8d6e0ee6f0d1eb1a7558bad22a56be52b990cc3b /include | |
| parent | 9575766a682f50ec4bcb85ecd438685bdc09f9cc (diff) | |
ALSA: hda: Add sync version of snd_hda_codec_write()
We used snd_hda_codec_read() for the verb write when a synchronization
is needed after the write, e.g. for the power state toggle or such
cases. It works in principle, but it looks rather confusing and too
hackish.
For improving the code readability, introduce a new helper function,
snd_hda_codec_write_sync(), which is another variant of
snd_hda_codec_write(), and replace the existing snd_hda_codec_read()
calls with this one.
No behavior change but just the code refactoring.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260409093826.1317626-2-tiwai@suse.de
Diffstat (limited to 'include')
| -rw-r--r-- | include/sound/hda_codec.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h index 5d9f0ef228af..292d6024388b 100644 --- a/include/sound/hda_codec.h +++ b/include/sound/hda_codec.h @@ -336,6 +336,17 @@ snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int flags, return snd_hdac_codec_write(&codec->core, nid, flags, verb, parm); } +/* sync after write */ +static inline int +snd_hda_codec_write_sync(struct hda_codec *codec, hda_nid_t nid, int flags, + unsigned int verb, unsigned int parm) +{ + /* use snd_hda_codec_read() for writing; + * the returned value is usually discarded + */ + return snd_hdac_codec_read(&codec->core, nid, flags, verb, parm); +} + #define snd_hda_param_read(codec, nid, param) \ snd_hdac_read_parm(&(codec)->core, nid, param) #define snd_hda_get_sub_nodes(codec, nid, start_nid) \ |