diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a8c4d16b7c306..593b6c97dcbdb 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4352,6 +4352,7 @@ enum {
 #define   VRR_CTL_IGN_MAX_SHIFT		REG_BIT(30)
 #define   VRR_CTL_FLIP_LINE_EN		REG_BIT(29)
 #define   VRR_CTL_LINE_COUNT_MASK	REG_GENMASK(10, 3)
+#define   VRR_CTL_LINE_COUNT(x)		REG_FIELD_PREP(VRR_CTL_LINE_COUNT_MASK, (x))
 #define   VRR_CTL_SW_FULLLINE_COUNT	REG_BIT(0)
 
 #define _TRANS_VRR_VMAX_A		0x60424