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(parent: 9507d27) | patch
ALSA: hda - mask buggy stream DMA0 for Broadwell display controller
authorMengdong Lin <mengdong.lin@intel.com>
Tue, 13 May 2014 08:57:08 +0000 (16:57 +0800)
committerTakashi Iwai <tiwai@suse.de>
Tue, 13 May 2014 10:11:58 +0000 (12:11 +0200)
commitc69fde7e1272de1597859fe8f7ab61e682484bff
tree0fc40bb01dd753d2e4fb5014582276dd3e34250btree | snapshot
parent9507d270c1a2346586ee8fc37777db94f07a1c03commit | diff
ALSA: hda - mask buggy stream DMA0 for Broadwell display controller

Broadwell display controller has 3 stream DMA engines. DMA0 cannot update DMA
postion buffer properly while DMA1 and DMA2 can work well. So this patch masks
the buggy DMA0 by keeping it as opened.

This is a tentative workaround, so keep the change small as Takashi suggested.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
sound/pci/hda/hda_intel.c diff | blob | history
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