From: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
[ Upstream commit b17e7ea041d8b565063632501ca4597afd105102 ]
If the stream-id is zero, the keep-alive (KAE) will only ensure clock is
generated, but no audio samples are sent over display link. This happens
before first real audio stream is played out to a newly connected
receiver.
Reuse the code in silent_stream_enable() to set up stream parameters
to sane defaults values, also when using the newer keep-alive flow.
Fixes: 15175a4f2bbb ("ALSA: hda/hdmi: add keep-alive support for ADL-P and DG2")
Signed-off-by: Kai Vehmanen <kai.vehmanen@xxxxxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
Tested-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Link: https://lore.kernel.org/r/20221209101822.3893675-3-kai.vehmanen@xxxxxxxxxxxxxxx
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
sound/pci/hda/patch_hdmi.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 35bef8fcd240..3ebe8260485b 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1738,6 +1738,7 @@ static void silent_stream_enable(struct hda_codec *codec,
switch (spec->silent_stream_type) {
case SILENT_STREAM_KAE:
+ silent_stream_enable_i915(codec, per_pin);
silent_stream_set_kae(codec, per_pin, true);
break;
case SILENT_STREAM_I915:
--
2.35.1
