diff --git a/drivers/delay_timer/delay_timer.c b/drivers/delay_timer/delay_timer.c
index c9f84d7..587724e 100644
--- a/drivers/delay_timer/delay_timer.c
+++ b/drivers/delay_timer/delay_timer.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ * Copyright (c) 2015-2018, ARM Limited and Contributors. All rights reserved.
  *
  * SPDX-License-Identifier: BSD-3-Clause
  */
@@ -12,7 +12,7 @@
 /***********************************************************
  * The delay timer implementation
  ***********************************************************/
-static const timer_ops_t *ops;
+static const timer_ops_t *timer_ops;
 
 /***********************************************************
  * Delay for the given number of microseconds. The driver must
@@ -20,26 +20,27 @@
  ***********************************************************/
 void udelay(uint32_t usec)
 {
-	assert(ops != NULL &&
-		(ops->clk_mult != 0) &&
-		(ops->clk_div != 0) &&
-		(ops->get_timer_value != NULL));
+	assert(timer_ops != NULL &&
+		(timer_ops->clk_mult != 0) &&
+		(timer_ops->clk_div != 0) &&
+		(timer_ops->get_timer_value != NULL));
 
 	uint32_t start, delta, total_delta;
 
-	assert(usec < UINT32_MAX / ops->clk_div);
+	assert(usec < UINT32_MAX / timer_ops->clk_div);
 
-	start = ops->get_timer_value();
+	start = timer_ops->get_timer_value();
 
 	/* Add an extra tick to avoid delaying less than requested. */
-	total_delta = div_round_up(usec * ops->clk_div, ops->clk_mult) + 1;
+	total_delta =
+		div_round_up(usec * timer_ops->clk_div, timer_ops->clk_mult) + 1;
 
 	do {
 		/*
 		 * If the timer value wraps around, the subtraction will
 		 * overflow and it will still give the correct result.
 		 */
-		delta = start - ops->get_timer_value(); /* Decreasing counter */
+		delta = start - timer_ops->get_timer_value(); /* Decreasing counter */
 
 	} while (delta < total_delta);
 }
@@ -64,5 +65,5 @@
 		(ops_ptr->clk_div != 0) &&
 		(ops_ptr->get_timer_value != NULL));
 
-	ops = ops_ptr;
+	timer_ops = ops_ptr;
 }