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| author | Takashi Iwai <tiwai@suse.de> | 2008-01-16 16:09:47 +0100 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-01-31 17:30:02 +0100 |
| commit | 52987656fb3d43192639a7d585feb564c075c864 (patch) | |
| tree | e8ac0d6e33e537016710cb380f6678770f9773dc /sound/pci/hda/hda_intel.c | |
| parent | 192b8e3922c916cbacac7e5a190d9412ae39a7ee (diff) | |
| download | talos-obmc-linux-52987656fb3d43192639a7d585feb564c075c864.tar.gz talos-obmc-linux-52987656fb3d43192639a7d585feb564c075c864.zip | |
[ALSA] hda-intel - Add workarounds for STAC codecs
Some machines with STAC codecs seem to have problems (e.g. no audible
playback) when the delay in codec-read routine is too short.
I still don't figure out which command sequence causes this problem
(due to lack of test hardware), but it's known that increasing the
delay fixes. So, added a stupid workaround here temporarily...
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/pci/hda/hda_intel.c')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 5f2c3ca863db..fe07bdff60d0 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) { |
