i2c: wmt: use msecs_to_jiffies for time conversions

This is only an API consolidation and should make things more readable
it replaces var * HZ / 1000 by msecs_to_jiffies(var).

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

drivers/i2c/busses/i2c-wmt.c

@@ -177,7 +177,7 @@ static int wmt_i2c_write(struct i2c_adapter *adap, struct i2c_msg *pmsg,
 
 	while (xfer_len < pmsg->len) {
 		wait_result = wait_for_completion_timeout(&i2c_dev->complete,
-							  500 * HZ / 1000);
+							msecs_to_jiffies(500));
 
 		if (wait_result == 0)
 			return -ETIMEDOUT;
@@ -266,7 +266,7 @@ static int wmt_i2c_read(struct i2c_adapter *adap, struct i2c_msg *pmsg,
 
 	while (xfer_len < pmsg->len) {
 		wait_result = wait_for_completion_timeout(&i2c_dev->complete,
-							  500 * HZ / 1000);
+							msecs_to_jiffies(500));
 
 		if (!wait_result)
 			return -ETIMEDOUT;