diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 8dc023296773a4fe22c198b3da3a644c659dc2b1..f2c3a49f73a0051b74c602990d6e18ea64928eda 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -566,13 +566,6 @@ static uint32_t soc15_get_rev_id(struct amdgpu_device *adev)
 		return nbio_v6_1_get_rev_id(adev);
 }
 
-
-int gmc_v9_0_mc_wait_for_idle(struct amdgpu_device *adev)
-{
-	/* to be implemented in MC IP*/
-	return 0;
-}
-
 static const struct amdgpu_asic_funcs soc15_asic_funcs =
 {
 	.read_disabled_bios = &soc15_read_disabled_bios,