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authorTakashi Iwai <tiwai@suse.de>2008-05-16 12:34:47 +0200
committerJaroslav Kysela <perex@perex.cz>2008-05-19 13:19:19 +0200
commit9ad593f6d326e7a4664e3856520f6c042f82a37f (patch)
tree215ff6488001382eb90f9f6ee8cd66c6c0030485 /sound/soc/s3c24xx/neo1973_wm8753.c
parent02330fbaaded5b603cba112e4bbf62cdadec159a (diff)
[ALSA] hda - Fix DMA position inaccuracy
Many HD-audio controllers seem inaccurate about the IRQ timing of PCM period updates. This has caused problems on audio quality; e.g. JACK doesn't work with two periods. This patch fixes the problem by checking the current DMA position at IRQ handler and delays the period-update via a workq if it's inaccurate. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound/soc/s3c24xx/neo1973_wm8753.c')
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