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drm/radeon: add a delay after ATPX dGPU power off
authorAlex Deucher <alexander.deucher@amd.com>
Wed, 1 Jun 2016 16:58:36 +0000 (12:58 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 20 Aug 2016 16:09:22 +0000 (18:09 +0200)
commitada3815fab5191d1c96ff07ed6c0c77ecd34dfd0
treef9cbc8737f2786ea77d02e61936ea2088b6665b1
parent4925cf140ff6208894feb0e81984c7f320025f2e
drm/radeon: add a delay after ATPX dGPU power off

commit d814b24fb74cb9797d70cb8053961447c5879a5c upstream.

ATPX dGPU power control requires a 200ms delay between
power off and on.  This should fix dGPU failures on
resume from power off.

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/gpu/drm/radeon/radeon_atpx_handler.c