diff options
| author | Rander Wang <[email protected]> | 2019-09-30 09:29:45 -0500 |
|---|---|---|
| committer | Takashi Iwai <[email protected]> | 2019-10-07 03:58:48 +0200 |
| commit | 130bce3afbbbbe585cba8604f2124c28e8d86fb0 (patch) | |
| tree | 90bab407ce5ca116478409761bc9d5e33986df90 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 1099f48457d06b816359fb43ac32a4a07e33219b (diff) | |
ALSA: hdac: clear link output stream mapping
Fix potential DMA hang upon starting playback on devices in HDA mode
on Intel platforms (Gemini Lake/Whiskey Lake/Comet Lake/Ice Lake). It
doesn't affect platforms before Gemini Lake or any Intel device in
non-HDA mode.
The reset value for the LOSDIV register is all output streams valid.
Clear this register to invalidate non-existent streams when the bus
is powered up.
Signed-off-by: Rander Wang <[email protected]>
Signed-off-by: Pierre-Louis Bossart <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions