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| author | Rafal Redzimski <[email protected]> | 2014-12-19 00:44:30 +0000 |
|---|---|---|
| committer | Takashi Iwai <[email protected]> | 2014-12-26 11:21:21 +0000 |
| commit | 93e3423e6ba4b0ddaf056ecbdf5bc46f18f41deb (patch) | |
| tree | f1c490d8bdcc06665c914ebe77f5b7f10c6caf19 /tools/perf/builtin-script.c | |
| parent | Linux 3.19-rc1 (diff) | |
| download | kernel-93e3423e6ba4b0ddaf056ecbdf5bc46f18f41deb.tar.gz kernel-93e3423e6ba4b0ddaf056ecbdf5bc46f18f41deb.zip | |
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 <[email protected]>
Signed-off-by: Jayachandran B <[email protected]>
Signed-off-by: Libin Yang <[email protected]>
Reviewed-by: Vinod Koul <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
Diffstat (limited to 'tools/perf/builtin-script.c')
0 files changed, 0 insertions, 0 deletions