DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT 1468 drivers/gpu/drm/gma500/psb_intel_reg.h #define   DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT  16
DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT 5553 drivers/gpu/drm/i915/i915_reg.h #define   DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT  16