COMPMID-948: Add validation to CLL2NormalizeLayer

Change-Id: I452a718a60b81da51cd3e98641fd99c86c4debab
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/129451
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLReductionOperation.h b/arm_compute/runtime/CL/functions/CLReductionOperation.h
index abec9b8..b8108b5 100644
--- a/arm_compute/runtime/CL/functions/CLReductionOperation.h
+++ b/arm_compute/runtime/CL/functions/CLReductionOperation.h
@@ -53,13 +53,24 @@
 
     /** Set the input and output tensors.
      *
-     * @param[in]  input  Source tensor. Data types supported: QS8, QS16, F16, F32.
-     * @param[out] output Destination tensor. Data types supported: Same as @p input.
+     * @param[in]  input  Source tensor. Data types supported: F32. Data layouts supported: NCHW.
+     * @param[out] output Destination tensor. Data types and data layouts supported: Same as @p input.
      * @param[in]  axis   Axis along which to reduce. Supported reduction axis : 0
      * @param[in]  op     Reduction operation to perform.
      */
     void configure(ICLTensor *input, ICLTensor *output, unsigned int axis, ReductionOperation op);
 
+    /** Static function to check if given info will lead to a valid configuration of @ref CLReductionOperation.
+     *
+     * @param[in] input  Source tensor info. Data types supported: F32. Data layouts supported: NCHW.
+     * @param[in] output Destination tensor info. Data types and data layouts supported: Same as @p input.
+     * @param[in] axis   Axis along which to reduce. Supported reduction axis : 0
+     * @param[in] op     Reduction operation to perform.
+     *
+     * @return a status
+     */
+    static Status validate(const ITensorInfo *input, const ITensorInfo *output, unsigned int axis, ReductionOperation op);
+
     // Inherited methods overridden:
     void run() override;
 
@@ -71,4 +82,4 @@
     unsigned int                                  _num_of_stages;
 };
 }
-#endif /*__ARM_COMPUTE_CLL2NORMALIZE_H__ */
+#endif /*__ARM_COMPUTE_CLREDUCTIONOPERATION_H__ */