[ALSA] hda-intel - Add workarounds for STAC codecs

[cascardo/linux.git] / sound / pci / hda / patch_sigmatel.c

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 1d643b9..24137bc 100644 (file)
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -3472,6 +3472,18 @@ static int patch_stac927x(struct hda_codec *codec)
 
        codec->patch_ops = stac92xx_patch_ops;
 
+       /*
+        * !!FIXME!!
+        * The STAC927x seem to require fairly long delays for certain
+        * command sequences.  With too short delays (even if the answer
+        * is set to RIRB properly), it results in the silence output
+        * on some hardwares like Dell.
+        *
+        * The below flag enables the longer delay (see get_response
+        * in hda_intel.c).
+        */
+       codec->bus->needs_damn_long_delay = 1;
+
        return 0;
 }