RAMCLK_GATE_D    1308 drivers/gpu/drm/gma500/psb_intel_reg.h #define RAMCLK_GATE_D		0x6210
RAMCLK_GATE_D    3539 drivers/gpu/drm/i915/i915_reg.h #define RAMCLK_GATE_D		_MMIO(0x6210)		/* CRL only */