[alsa-devel] [PATCH 2/2] ALSA: hda - Don't trust codec EPSS bit for IDT 92HD83xx & co

[Takashi Iwai]

These codecs seem reporting EPSS but require longer delay for the
proper D3 transition.  For example, D3_STOP_CLOCK_OK bit won't be set
correctly even after D3.

In this patch, codec->epss flag is overridden for avoid the
misbehavior.

Signed-off-by: Takashi Iwai <tiwai at suse.de>
---
 sound/pci/hda/patch_sigmatel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 3edd73c..6f806d3 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -5534,6 +5534,7 @@ static int patch_stac92hd83xxx(struct hda_codec *codec)
 		snd_hda_codec_set_pincfg(codec, 0xf, 0x2181205e);
 	}
 
+	codec->epss = 0; /* longer delay needed for D3 */
 	codec->no_trigger_sense = 1;
 	codec->spec = spec;
 
-- 
1.7.11.4