drm/amd/display: Add debugfs to repress HPD and HPR_RX IRQs

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[Why]
For debugging reasons it can be beneficial to disable any hotplug and DP shortpulse interrupt handling.

[How]
Expose a debugfs to set a flag to bypass HPD IRQ handling and skip IRQ handling if flag is set.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Bindu Ramamurthy <bindur12@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Harry Wentland 2020-10-02 13:32:00 -04:00 • committed by Alex Deucher

parent 83d76eeb7b

commit b972b4f913

3 changed files with 45 additions and 2 deletions

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9

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

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3

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

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35

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

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