Add a workaround for bad DMA-position reporting on VIA chipset.
Signed-off-by: NJoseph Chan <josephchan@via.com.tw>
[modified and cleaned up by tiwai]
Signed-off-by: NTakashi Iwai <tiwai@suse.de>
Signed-off-by: NJaroslav Kysela <perex@perex.cz>