diff --git a/drivers/tty/serial/mvebu-uart.c b/drivers/tty/serial/mvebu-uart.c
index 51b0ecabf2ec..04c41689d81c 100644
--- a/drivers/tty/serial/mvebu-uart.c
+++ b/drivers/tty/serial/mvebu-uart.c
@@ -617,7 +617,7 @@ static void mvebu_uart_putc(struct uart_port *port, int c)
 
 static void mvebu_uart_putc_early_write(struct console *con,
 					const char *s,
-					unsigned n)
+					unsigned int n)
 {
 	struct earlycon_device *dev = con->data;
 
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index bafdf75c1fa8..962e522ccc45 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1149,7 +1149,7 @@ static void cdns_uart_console_putchar(struct uart_port *port, int ch)
 }
 
 static void cdns_early_write(struct console *con, const char *s,
-				    unsigned n)
+				    unsigned int n)
 {
 	struct earlycon_device *dev = con->data;