diff --git a/freedreno/msm/msm_drm.h b/freedreno/msm/msm_drm.h
index f7474c5..baf505c 100644
--- a/freedreno/msm/msm_drm.h
+++ b/freedreno/msm/msm_drm.h
@@ -58,6 +58,7 @@
 #define MSM_PARAM_GPU_ID     0x01
 #define MSM_PARAM_GMEM_SIZE  0x02
 #define MSM_PARAM_CHIP_ID    0x03
+#define MSM_PARAM_MAX_FREQ   0x04
 
 struct drm_msm_param {
 	uint32_t pipe;           /* in, MSM_PIPE_x */