DISPPLANE_SEL_PIPE_MASK  636 drivers/gpu/drm/gma500/psb_intel_reg.h #define DISPPLANE_SEL_PIPE_MASK			(1 << 24)
DISPPLANE_SEL_PIPE_MASK 6241 drivers/gpu/drm/i915/i915_reg.h #define   DISPPLANE_SEL_PIPE_MASK		(3 << DISPPLANE_SEL_PIPE_SHIFT)