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| author | Peichen Huang <[email protected]> | 2024-12-25 07:51:34 +0000 |
|---|---|---|
| committer | Alex Deucher <[email protected]> | 2025-01-10 17:12:29 +0000 |
| commit | 230dced3e2b712017c03ce0afb3f8c48d8af20ee (patch) | |
| tree | 9a302cbd7dd3cde788e742d2ce0ddecaa9d156bb /drivers/base/firmware_loader/fallback_table.c | |
| parent | drm/amd/display: Apply DML21 Patches (diff) | |
| download | kernel-230dced3e2b712017c03ce0afb3f8c48d8af20ee.tar.gz kernel-230dced3e2b712017c03ce0afb3f8c48d8af20ee.zip | |
drm/amd/display: improve dpia pre-train
[WHY]
We see unstable DP LL 4.2.1.3 test result with dpia pre-train. It is
because the outbox interrupt mechanism can not handle HPD
immediately and require some improvement.
[HOW]
1. not enable link if hpd_pending is true.
2. abort pre-train if training failed and hpd_pending is true.
3. check if 2 lane supported when it is alt mode
Reviewed-by: Wenjing Liu <[email protected]>
Reviewed-by: Meenakshikumar Somasundaram <[email protected]>
Signed-off-by: Peichen Huang <[email protected]>
Signed-off-by: Tom Chung <[email protected]>
Tested-by: Daniel Wheeler <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Diffstat (limited to 'drivers/base/firmware_loader/fallback_table.c')
0 files changed, 0 insertions, 0 deletions