serial: ns16550: use a const variable instead of macro
Just for type checking.
Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
diff --git a/drivers/serial/serial_ns16550.c b/drivers/serial/serial_ns16550.c
index 49e2c1f..4413e69 100644
--- a/drivers/serial/serial_ns16550.c
+++ b/drivers/serial/serial_ns16550.c
@@ -120,6 +120,8 @@
static int calc_divisor (NS16550_t port)
{
+ const unsigned int mode_x_div = 16;
+
#ifdef CONFIG_OMAP1510
/* If can't cleanly clock 115200 set div to 1 */
if ((CONFIG_SYS_NS16550_CLK == 12000000) && (gd->baudrate == 115200)) {
@@ -129,10 +131,8 @@
port->osc_12m_sel = 0; /* clear if previsouly set */
#endif
-#define MODE_X_DIV 16
-
return DIV_ROUND_CLOSEST(CONFIG_SYS_NS16550_CLK,
- MODE_X_DIV * gd->baudrate);
+ mode_x_div * gd->baudrate);
}
void