[PATCH v1 2/7] i2c: mlxbf: Use HZ_PER_GHZ constant instead of custom one

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

Use HZ_PER_GHZ constant instead of custom one. No functional changes.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/i2c/busses/i2c-mlxbf.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mlxbf.c b/drivers/i2c/busses/i2c-mlxbf.c
index 8345f7e6385d..746f65989138 100644
--- a/drivers/i2c/busses/i2c-mlxbf.c
+++ b/drivers/i2c/busses/i2c-mlxbf.c
@@ -20,6 +20,7 @@
 #include <linux/platform_device.h>
 #include <linux/string.h>
 #include <linux/string_choices.h>
+#include <linux/units.h>
 
 /* Defines what functionality is present. */
 #define MLXBF_I2C_FUNC_SMBUS_BLOCK \
@@ -72,8 +73,6 @@
 /* Constant used to determine the PLL frequency. */
 #define MLNXBF_I2C_COREPLL_CONST    16384ULL
 
-#define MLXBF_I2C_FREQUENCY_1GHZ  1000000000ULL
-
 /* PLL registers. */
 #define MLXBF_I2C_CORE_PLL_REG1         0x4
 #define MLXBF_I2C_CORE_PLL_REG2         0x8
@@ -1083,7 +1082,7 @@ static u32 mlxbf_i2c_get_ticks(struct mlxbf_i2c_priv *priv, u64 nanoseconds,
 	 *         Frequency
 	 */
 	frequency = priv->frequency;
-	ticks = div_u64(nanoseconds * frequency, MLXBF_I2C_FREQUENCY_1GHZ);
+	ticks = div_u64(nanoseconds * frequency, HZ_PER_GHZ);
 	/*
 	 * The number of ticks is rounded down and if minimum is equal to 1
 	 * then add one tick.
-- 
2.50.1