drm/amdgpu: disable runpm if we are the primary adapter
commit
b95dc06af3e683d6b7ddbbae178b2b2a21ee8b2b upstream.
If we are the primary adapter (i.e., the one used by the firwmare
framebuffer), disable runtime pm. This fixes a regression caused
by commit
55285e21f045 which results in the displays waking up
shortly after they go to sleep due to the device coming out of
runtime suspend and sending a hotplug uevent.
v2: squash in reworked fix from Evan
Fixes:
55285e21f045 ("fbdev/efifb: Release PCI device's runtime PM ref during FB destroy")
Bug: https://bugzilla.kernel.org/show_bug.cgi?id=215203
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1840
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>