GMBUS_2BYTE_INDEX_EN   78 drivers/gpu/drm/gma500/psb_intel_reg.h #define   GMBUS_2BYTE_INDEX_EN	(1<<31)
GMBUS_2BYTE_INDEX_EN 3249 drivers/gpu/drm/i915/i915_reg.h #define   GMBUS_2BYTE_INDEX_EN	(1 << 31)