drm/amd/display: Properly reuse completion structure

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commit 0cf8307adb upstream.

[Why]
Connecting displays to TBT3 docks often produces invalid
replies for DPIA AUX requests. It turns out the completion
structure was not re-initialized before reusing it, resulting
in immature wake up to completion.

[How]
Properly call reinit_completion() on reused completion structure.

Cc: stable@vger.kernel.org
Reviewed-by: Solomon Chiu <solomon.chiu@amd.com>
Acked-by: Alan Liu <HaoPing.Liu@amd.com>
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: "Limonciello, Mario" <mario.limonciello@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

This commit is contained in:

Stylon Wang 2023-01-10 14:38:33 +08:00 • committed by Greg Kroah-Hartman

parent c9d3eb6151

commit 118ad80d27

1 changed files with 3 additions and 0 deletions

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drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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