diff options
| author | Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> | 2022-09-19 14:10:39 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2022-09-20 08:08:14 +0200 |
| commit | 53f4f6b4e56d5fb6ef95a7e14c10ec244a79b996 (patch) | |
| tree | 8718d8527e7c498d94902c7218ca06bb51d5d419 /sound/hda/ext/hdac_ext_stream.c | |
| parent | ALSA: hda: add snd_hdac_stop_streams() helper (diff) | |
| download | linux-53f4f6b4e56d5fb6ef95a7e14c10ec244a79b996.tar.xz linux-53f4f6b4e56d5fb6ef95a7e14c10ec244a79b996.zip | |
ALSA: hda: ext: simplify logic for stream assignment
The logic is needlessly complicated, the basic rule is:
The host streams can be found by checking the 'opened' boolean.
The link streams can be found by checking the 'link_locked' boolean.
Once a stream is found, it can be unconditionally decoupled. The
snd_hdac_ext_stream_decouple_locked() routine will make sure the
register status is modified as needed and the 'decoupled' boolean set.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Link: https://lore.kernel.org/r/20220919121041.43463-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/hda/ext/hdac_ext_stream.c')
| -rw-r--r-- | sound/hda/ext/hdac_ext_stream.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/sound/hda/ext/hdac_ext_stream.c b/sound/hda/ext/hdac_ext_stream.c index 9419abd7fc03..254df9a67bd2 100644 --- a/sound/hda/ext/hdac_ext_stream.c +++ b/sound/hda/ext/hdac_ext_stream.c @@ -267,19 +267,15 @@ hdac_ext_link_stream_assign(struct hdac_bus *bus, if (hstream->direction != substream->stream) continue; - /* check if decoupled stream and not in use is available */ - if (hext_stream->decoupled && !hext_stream->link_locked) { - res = hext_stream; - break; - } - + /* check if link stream is available */ if (!hext_stream->link_locked) { - snd_hdac_ext_stream_decouple_locked(bus, hext_stream, true); res = hext_stream; break; } + } if (res) { + snd_hdac_ext_stream_decouple_locked(bus, res, true); res->link_locked = 1; res->link_substream = substream; } @@ -308,13 +304,12 @@ hdac_ext_host_stream_assign(struct hdac_bus *bus, continue; if (!hstream->opened) { - if (!hext_stream->decoupled) - snd_hdac_ext_stream_decouple_locked(bus, hext_stream, true); res = hext_stream; break; } } if (res) { + snd_hdac_ext_stream_decouple_locked(bus, res, true); res->hstream.opened = 1; res->hstream.running = 0; res->hstream.substream = substream; |