CNL_DPLL_CFGCR1
cfgcr1 = I915_READ(CNL_DPLL_CFGCR1(pll_id));
I915_WRITE(CNL_DPLL_CFGCR1(id), val);
POSTING_READ(CNL_DPLL_CFGCR1(id));
hw_state->cfgcr1 = I915_READ(CNL_DPLL_CFGCR1(id));