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| author | Takashi Iwai <tiwai@suse.de> | 2008-08-18 17:11:09 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@perex.cz> | 2008-08-25 09:57:07 +0200 |
| commit | a62741cf77f41338033553d7cc3fd3145a64ae53 (patch) | |
| tree | 566c5cd2b49a9226e2c76770ce1bc52f94bce3b1 /sound | |
| parent | ace457c77ba8c0705e14d95c65e73d7e569bd7b9 (diff) | |
| download | kernel_samsung_smdk4412-a62741cf77f41338033553d7cc3fd3145a64ae53.zip kernel_samsung_smdk4412-a62741cf77f41338033553d7cc3fd3145a64ae53.tar.gz kernel_samsung_smdk4412-a62741cf77f41338033553d7cc3fd3145a64ae53.tar.bz2 | |
ALSA: hda - disable delayed period-ack with bdl_pos_adj=0
When bdl_pos_adj=0 is given, disable the position-check and the delayed
period update mechanism. Usually bdl_pos_adj=0 is set only for the
debugging purpose on really broken hardwares. It's better to disable
the extra complexity in such a case.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index b2bcd94..39f2231 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1559,6 +1559,8 @@ static int azx_position_ok(struct azx *chip, struct azx_dev *azx_dev) chip->position_fix = POS_FIX_POSBUF; } + if (!bdl_pos_adj[chip->dev_index]) + return 1; /* no delayed ack */ if (pos % azx_dev->period_bytes > azx_dev->period_bytes / 2) return 0; /* NG - it's below the period boundary */ return 1; /* OK, it's fine */ |