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authorRafal Redzimski <rafal.f.redzimski@intel.com>2014-12-19 03:44:30 +0300
committerTakashi Iwai <tiwai@suse.de>2014-12-26 14:21:21 +0300
commit93e3423e6ba4b0ddaf056ecbdf5bc46f18f41deb (patch)
treef1c490d8bdcc06665c914ebe77f5b7f10c6caf19 /sound/soc/au1x
parent97bf6af1f928216fd6c5a66e8a57bfa95a659672 (diff)
downloadlinux-93e3423e6ba4b0ddaf056ecbdf5bc46f18f41deb.tar.xz
ALSA: hda_controller: Separate stream_tag for input and output streams.
Implemented separate stream_tag assignment for input and output streams. According to hda specification stream tag must be unique throughout the input streams group, however an output stream might use a stream tag which is already in use by an input stream. This change is necessary to support HW which provides a total of more than 15 stream DMA engines which with legacy implementation causes an overflow on SDxCTL.STRM field (and the whole SDxCTL register) and as a result usage of Reserved value 0 in the SDxCTL.STRM field which confuses HDA controller. Signed-off-by: Rafal Redzimski <rafal.f.redzimski@intel.com> Signed-off-by: Jayachandran B <jayachandran.b@intel.com> Signed-off-by: Libin Yang <libin.yang@intel.com> Reviewed-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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