DP_AUX_CH_CTL_INTERRUPT 1457 drivers/gpu/drm/gma500/psb_intel_reg.h #define   DP_AUX_CH_CTL_INTERRUPT	    (1 << 29)
DP_AUX_CH_CTL_INTERRUPT 5542 drivers/gpu/drm/i915/i915_reg.h #define   DP_AUX_CH_CTL_INTERRUPT	    (1 << 29)