tree cf45fa7be36c5d59826bb5a4af16ce2bd4485f45
parent a9dcf84b14ef4e9a609910367576995e6f32f3dc
author Chris Wilson <chris@chris-wilson.co.uk> 1336936572 +0100
committer Daniel Vetter <daniel.vetter@ffwll.ch> 1337461790 +0200

drm/i915: Convert BUG_ON(!pll->active) and friends to a WARN

Turn a fatal lockup into a merely blank display with lots of shouty
messages.

v2: Whilst in the area, convert the other BUG_ON into less fatal errors.
In particular, note that we may be called on a PCH platform not using
PLLs, such as Haswell, and so we do not always want to BUG_ON(!pll)

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>