DP_A
intel_dp_port_enabled(dev_priv, DP_A, PORT_A, &panel_pipe);
if ((I915_READ(DP_A) & DP_DETECTED) == 0)
intel_dp_init(dev_priv, DP_A, PORT_A);
bool cur_state = I915_READ(DP_A) & DP_PLL_ENABLE;
I915_WRITE(DP_A, intel_dp->DP);
POSTING_READ(DP_A);
I915_WRITE(DP_A, intel_dp->DP);
POSTING_READ(DP_A);
I915_WRITE(DP_A, intel_dp->DP);
POSTING_READ(DP_A);
if ((I915_READ(DP_A) & DP_PLL_FREQ_MASK) == DP_PLL_FREQ_162MHZ)