diff options
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/hda_codec.h | 3 | ||||
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 8 | ||||
| -rw-r--r-- | sound/pci/hda/patch_sigmatel.c | 12 |
3 files changed, 21 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 20be7761562..719e46f6fb3 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -464,6 +464,9 @@ struct hda_bus { struct hda_bus_unsolicited *unsol; struct snd_info_entry *proc; + + /* misc op flags */ + unsigned int needs_damn_long_delay :1; }; /* diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 5f2c3ca863d..fe07bdff60d 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -559,8 +559,12 @@ static unsigned int azx_rirb_get_response(struct hda_codec *codec) } if (!chip->rirb.cmds) return chip->rirb.res; /* the last value */ - udelay(10); - cond_resched(); + if (codec->bus->needs_damn_long_delay) + msleep(2); /* temporary workaround */ + else { + udelay(10); + cond_resched(); + } } while (time_after_eq(timeout, jiffies)); if (chip->msi) { diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 1d643b9771a..24137bc975c 100644 --- 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; } |