drm/amd/display: Fix s3 hang on resume.

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Avoid enabling CRTC_VERTICAL_INTERRUPT0 twice on resume.
It's enabled once from within manage_dm_interrupts in mode set
and another explicitly from amdgpu_dm_irq_resume_late.
Seems it lead to CRTC hang.

Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Reviewed-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Andrey Grodzovsky 2017-03-31 14:15:31 -04:00 • committed by Alex Deucher

parent 7160c74cd0

commit 9faa423716

3 changed files with 13 additions and 7 deletions

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2

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

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16

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

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2

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

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