MBUS_DBOX_B_CREDIT 6430 drivers/gpu/drm/i915/display/intel_display.c 		val |= MBUS_DBOX_B_CREDIT(12);
MBUS_DBOX_B_CREDIT 6433 drivers/gpu/drm/i915/display/intel_display.c 		val |= MBUS_DBOX_B_CREDIT(8);