diff --git a/drivers/tty/serial/men_z135_uart.c b/drivers/tty/serial/men_z135_uart.c
index 3141aa20843d7d92867389711f8925e4606091df..a44290e9b5a8b0eff5304321e4b77affc93ae477 100644
--- a/drivers/tty/serial/men_z135_uart.c
+++ b/drivers/tty/serial/men_z135_uart.c
@@ -158,7 +158,7 @@ static inline void men_z135_reg_set(struct men_z135_port *uart,
  * @addr: Register address
  * @val: value to clear
  */
-static inline void men_z135_reg_clr(struct men_z135_port *uart,
+static void men_z135_reg_clr(struct men_z135_port *uart,
 				u32 addr, u32 val)
 {
 	struct uart_port *port = &uart->port;