GMBUS_HW_RDY_EN    76 drivers/gpu/drm/gma500/psb_intel_reg.h #define   GMBUS_HW_RDY_EN	(1<<0)
GMBUS_HW_RDY_EN  3247 drivers/gpu/drm/i915/i915_reg.h #define   GMBUS_HW_RDY_EN	(1 << 0)