drm/radeon/kms: don't crash if no DDC bus on VGA/DVI connector.
authorDave Airlie <airlied@redhat.com>
Mon, 8 Feb 2010 03:16:55 +0000 (13:16 +1000)
committerDave Airlie <airlied@redhat.com>
Mon, 8 Feb 2010 22:54:42 +0000 (08:54 +1000)
commit4b9d2a2112163a757943c78ea98587fc9e828641
treec929d8d3dfb7c4fc7c8231ae8f7e987094544096
parent1ca137cdcd4e11af03dbe073d48a470b833a456d
drm/radeon/kms: don't crash if no DDC bus on VGA/DVI connector.

This is strange - like really really strange, twilight zone of strange.
VGA ports have DDC buses, but sometimes for some reasons the BIOS
says we don't and we oops - AMD mentioned bios bugs so we'll have
to add quirks.

reported on irc by nirbheek and
https://bugzilla.redhat.com/show_bug.cgi?id=554323

Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/radeon_connectors.c
drivers/gpu/drm/radeon/radeon_display.c