diff --git a/arm_compute/runtime/CL/functions/CLDirectConvolutionLayer.h b/arm_compute/runtime/CL/functions/CLDirectConvolutionLayer.h
index 10bcb75..045b1c0 100644
--- a/arm_compute/runtime/CL/functions/CLDirectConvolutionLayer.h
+++ b/arm_compute/runtime/CL/functions/CLDirectConvolutionLayer.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2017-2019 ARM Limited.
+ * Copyright (c) 2017-2020 ARM Limited.
  *
  * SPDX-License-Identifier: MIT
  *
@@ -47,10 +47,10 @@
      *
      * @param[in]  input     Source tensor. 3 lower dimensions represent a single input [width, height, IFM],
      *                       while every optional dimension from 4 and above represent a batch of inputs.
-     *                       Data types supported: QASYMM8/F16/F32.
+     *                       Data types supported: QASYMM8_SIGNED/QASYMM8/F16/F32.
      * @param[in]  weights   Weights tensor. Weights are 4D tensor with dimensions [kernel_x, kernel_y, IFM, OFM]. Data type supported:Same as @p input.
      * @param[in]  biases    Biases tensor. Shared biases supported. Biases are 1D tensor with dimensions [OFM].
-     *                       Data type supported: Should match @p input data type, except for input of QASYMM8 type where biases should be of S32 type.
+     *                       Data type supported: Should match @p input data type, except for input of QASYMM8 and QASYMM8_SIGNED type where biases should be of S32 type.
      * @param[out] output    Destination tensor. 3 lower dimensions represent a single output [width, height, OFM], while the rest represent batch of outputs.
      *                       Data types supported: Same as @p input.
      * @param[in]  conv_info Contains padding and stride information described in @ref PadStrideInfo.
@@ -61,9 +61,10 @@
      *
      * @param[in] input     Source tensor. 3 lower dimensions represent a single input [width, height, IFM],
      *                      while every optional dimension from 4 and above represent a batch of inputs.
-     *                      Data types supported: QASYMM8/F16/F32.
+     *                      Data types supported: QASYMM8_SIGNED/QASYMM8/F16/F32.
      * @param[in] weights   Weights tensor. Weights are 4D tensor with dimensions [kernel_x, kernel_y, IFM, OFM]. Data type supported:Same as @p input.
-     * @param[in] biases    Biases tensor. Shared biases supported. Biases are 1D tensor with dimensions [OFM]. Data type supported:Same as @p input.
+     * @param[in] biases    Biases tensor. Shared biases supported. Biases are 1D tensor with dimensions [OFM].
+     *                      Data type supported: Should match @p input data type, except for input of QASYMM8 and QASYMM8_SIGNED type where biases should be of S32 type.
      * @param[in] output    Destination tensor. 3 lower dimensions represent a single output [width, height, OFM], while the rest represent batch of outputs.
      *                      Data types supported: Same as @p input.
      * @param[in] conv_info Contains padding and stride information described in @ref PadStrideInfo.