drm/amd/display: Add retires when read DPCD

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[why & how]
Sometimes read DPCD return fail while result not retrieved yet. Add
retries mechanism in Replay handle hpd irq to get real result.

Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Signed-off-by: Joan Lee <joan.lee@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Joan Lee 2024-05-15 10:23:01 +08:00 • committed by Alex Deucher

parent cc4d6ea0f2

commit 2770b91588

1 changed files with 20 additions and 6 deletions

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26

drivers/gpu/drm/amd/display/dc/link/protocols/link_dp_irq_handler.c

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