MBUS_DBOX_BW_CREDIT 6429 drivers/gpu/drm/i915/display/intel_display.c 		val |= MBUS_DBOX_BW_CREDIT(2);
MBUS_DBOX_BW_CREDIT 6432 drivers/gpu/drm/i915/display/intel_display.c 		val |= MBUS_DBOX_BW_CREDIT(1);