PFIT_PGM_RATIOS   221 drivers/gpu/drm/gma500/psb_intel_reg.h #define PFIT_PGM_RATIOS		0x61234
PFIT_PGM_RATIOS  4795 drivers/gpu/drm/i915/i915_reg.h #define PFIT_PGM_RATIOS _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61234)