diff options
| author | Kai Vehmanen <kai.vehmanen@linux.intel.com> | 2022-12-09 12:18:22 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2022-12-09 12:06:15 +0100 |
| commit | ee0b089d660021792e4ab4dda191b097ce1e964f (patch) | |
| tree | 102327f52802e3fd63c8a4c254b1ca813fc0b291 /include/sound | |
| parent | b17e7ea041d8b565063632501ca4597afd105102 (diff) | |
ALSA: hda/hdmi: fix stream-id config keep-alive for rt suspend
When the new style KAE keep-alive implementation is used on compatible
Intel hardware, the clocks are maintained when codec is in D3. The
generic code in hda_cleanup_all_streams() can however interfere with
generation of audio samples in this mode, by setting the stream and
channel ids to zero.
To get full benefit of the keepalive, set the new
no_stream_clean_at_suspend quirk bit on affected Intel hardware. When
this bit is set, stream cleanup is skipped in hda_call_codec_suspend().
Special handling is needed for the case when system goes to suspend. The
stream id programming can be lost in this case. This will also cause
codec->cvt_setups to be out of sync. Handle this by implementing custom
suspend/resume handlers. If keep-alive is active for any converter, set
the quirk flags no_stream_clean_at_suspend and forced_resume. Upon
resume, keepalive programming is restored if needed.
Fixes: 15175a4f2bbb ("ALSA: hda/hdmi: add keep-alive support for ADL-P and DG2")
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20221209101822.3893675-4-kai.vehmanen@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/hda_codec.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sound/hda_codec.h b/include/sound/hda_codec.h index 25ec8c181688..eba23daf2c29 100644 --- a/include/sound/hda_codec.h +++ b/include/sound/hda_codec.h @@ -258,6 +258,7 @@ struct hda_codec { unsigned int link_down_at_suspend:1; /* link down at runtime suspend */ unsigned int relaxed_resume:1; /* don't resume forcibly for jack */ unsigned int forced_resume:1; /* forced resume for jack */ + unsigned int no_stream_clean_at_suspend:1; /* do not clean streams at suspend */ #ifdef CONFIG_PM unsigned long power_on_acct; |