BLC_PWM_CTL        80 drivers/gpu/drm/gma500/psb_intel_reg.h #define BLC_PWM_CTL		0x61254
BLC_PWM_CTL      4848 drivers/gpu/drm/i915/i915_reg.h #define BLC_PWM_CTL	_MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61254)