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| author | Pierre-Louis Bossart <[email protected]> | 2025-02-27 14:06:01 +0000 |
|---|---|---|
| committer | Vinod Koul <[email protected]> | 2025-03-10 07:01:18 +0000 |
| commit | 3e3ae0c8fccc51021136b192ec88e94a1bc5704c (patch) | |
| tree | 401f15530b43e6b8c183f4956f2b8deb22ace091 /rust/helpers/mutex.c | |
| parent | Documentation: driver: add SoundWire BRA description (diff) | |
| download | kernel-3e3ae0c8fccc51021136b192ec88e94a1bc5704c.tar.gz kernel-3e3ae0c8fccc51021136b192ec88e94a1bc5704c.zip | |
soundwire: cadence: add BTP support for DP0
The register definitions are missing a BULK_ENABLE bitfield which must
be set for DP0.
In addition, the existing mapping from PDI to Data Port is 1:1. That's
fine for PCM streams which are by construction in one direction
only. The BTP/BRA protocol is bidirectional and relies on DP0 only,
which breaks the 1:1 mapping. DP0 MUST be mapped to both PDI0 and
PDI1, with PDI0 taking care of the TX direction and PDI1 of the RX
direction.
Signed-off-by: Pierre-Louis Bossart <[email protected]>
Signed-off-by: Bard Liao <[email protected]>
Reviewed-by: Péter Ujfalusi <[email protected]>
Reviewed-by: Liam Girdwood <[email protected]>
Reviewed-by: Ranjani Sridharan <[email protected]>
Tested-by: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Vinod Koul <[email protected]>
Diffstat (limited to 'rust/helpers/mutex.c')
0 files changed, 0 insertions, 0 deletions