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ujfalusi
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[BUG] Incdorrect LLP reported for SSP on LNL, causing broken delay reporting for user space
[BUG] Incorrect LLP reported for SSP on LNL, causing broken delay reporting for user space
Aug 20, 2024
Describe the bug
The firmware reported llp value is incorrect for SSP link type.
To Reproduce
Run audio playback on SSP with application that uses the delay value, like
mpv
:and observe the playback progress:
Reproduction Rate
10/10 (always)
Expected behavior
The LLP value reported by the firmware is correct.
Impact
video playback with audio using SSP link will fail as the audio delay is incorrect
Environment
LNL with nocodec topology
Screenshots or console output
Debug diff for the kernel:
Run:
On LNL-SSP:
On LNL-SDW:
On MTL-SSP:
On MTL-SDW:
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