DP_TP_CTL
I915_WRITE(DP_TP_CTL(PORT_E),
temp = I915_READ(DP_TP_CTL(PORT_E));
I915_WRITE(DP_TP_CTL(PORT_E), temp);
POSTING_READ(DP_TP_CTL(PORT_E));
I915_WRITE(DP_TP_CTL(PORT_E),
val = I915_READ(DP_TP_CTL(port));
I915_WRITE(DP_TP_CTL(port), val);
if (I915_READ(DP_TP_CTL(port)) & DP_TP_CTL_ENABLE) {
val = I915_READ(DP_TP_CTL(port));
I915_WRITE(DP_TP_CTL(port), val);
POSTING_READ(DP_TP_CTL(port));
I915_WRITE(DP_TP_CTL(port), val);
POSTING_READ(DP_TP_CTL(port));
uint32_t temp = I915_READ(DP_TP_CTL(port));
I915_WRITE(DP_TP_CTL(port), temp);
val = I915_READ(DP_TP_CTL(port));
I915_WRITE(DP_TP_CTL(port), val);