drm/amdgpu: Fix a kerneldoc warning

Add missing parameters to fix a kerneldoc warning
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

@@ -554,7 +554,11 @@ void amdgpu_device_wreg(struct amdgpu_device *adev,
 /**
  * amdgpu_mm_wreg_mmio_rlc -  write register either with direct/indirect mmio or with RLC path if in range
  *
- * this function is invoked only the debugfs register access
+ * @adev: amdgpu_device pointer
+ * @reg: mmio/rlc register
+ * @v: value to write
+ *
+ * this function is invoked only for the debugfs register access
  */
 void amdgpu_mm_wreg_mmio_rlc(struct amdgpu_device *adev,
 			     uint32_t reg, uint32_t v)