serial/pch: use global div helper instead of creating a private one

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alan Cox  <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index f2cb7503fcb213115b3b15722495c335a0aad984..ae28250b0be0ee15be5df8b1633d1522760f640c 100644 (file)
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -14,6 +14,7 @@
  *along with this program; if not, write to the Free Software
  *Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
  */
+#include <linux/kernel.h>
 #include <linux/serial_reg.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -137,8 +138,6 @@ enum {
 #define PCH_UART_DLL           0x00
 #define PCH_UART_DLM           0x01
 
-#define DIV_ROUND(a, b)        (((a) + ((b)/2)) / (b))
-
 #define PCH_UART_IID_RLS       (PCH_UART_IIR_REI)
 #define PCH_UART_IID_RDR       (PCH_UART_IIR_RRI)
 #define PCH_UART_IID_RDR_TO    (PCH_UART_IIR_RRI | PCH_UART_IIR_TOI)
@@ -316,7 +315,7 @@ static int pch_uart_hal_set_line(struct eg20t_port *priv, int baud,
        unsigned int dll, dlm, lcr;
        int div;
 
-       div = DIV_ROUND(priv->base_baud / 16, baud);
+       div = DIV_ROUND_CLOSEST(priv->base_baud / 16, baud);
        if (div < 0 || USHRT_MAX <= div) {
                dev_err(priv->port.dev, "Invalid Baud(div=0x%x)\n", div);
                return -EINVAL;