drm/radeon/dp: use i2c_get_adapdata rather than casting

Minor code cleanup.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Alex Deucher 2014-03-17 23:48:14 -04:00 • committed by Christian König
commit f3381dfc97