DP_AUX_CH_CTL_SEND_BUSY
#define C (((status = I915_READ_NOTRACE(ch_ctl)) & DP_AUX_CH_CTL_SEND_BUSY) == 0)
return DP_AUX_CH_CTL_SEND_BUSY |
ret = DP_AUX_CH_CTL_SEND_BUSY |
if ((status & DP_AUX_CH_CTL_SEND_BUSY) == 0)