drm/i915: Pull watermark level validity check out
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Wed, 7 Aug 2013 10:24:47 +0000 (13:24 +0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Thu, 8 Aug 2013 12:11:10 +0000 (14:11 +0200)
commita9786a119d2cd0f43d5554bddda71a5fd6ee39ff
tree15ba746c869880303ecfcb7b8642837aa2470f57
parent8b9c2b9411dd55617442f8151fb6fb2849c72f7e
drm/i915: Pull watermark level validity check out

Refactor the code a bit to split the watermark level validity check into
a separate function.

Also add hack there that allows us to use it even for LP0 watermarks.
ATM we don't pre-compute/check the LP0 watermarks, so we just have to
clamp them to the maximum and hope things work out.

v2: Add some debug prints when we exceed max WM0
    Kill pointless ret = false' assignment.
    Include the check for the already disabled 'result' which
    got shuffled around when the patchs got reorderd

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c