diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 2d402e49f7fd31d2de175da9784cbc3c4027f1d6..99facbf86043bc5afc197155ad03ae32f298815d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2331,6 +2331,10 @@ struct drm_i915_cmd_table {
 #define SKL_REVID_D0		(0x3)
 #define SKL_REVID_E0		(0x4)
 
+#define BXT_REVID_A0		(0x0)
+#define BXT_REVID_B0		(0x3)
+#define BXT_REVID_C0		(0x6)
+
 /*
  * The genX designation typically refers to the render engine, so render
  * capability related checks should use IS_GEN, while display and other checks