unsigned int custom_divisor;
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
-@@ -384,6 +384,20 @@ static unsigned int mem16_serial_in(stru
+@@ -383,6 +383,20 @@ static unsigned int mem16_serial_in(stru
return readw(p->membase + offset);
}
static void mem32_serial_out(struct uart_port *p, int offset, int value)
{
offset = offset << p->regshift;
-@@ -456,6 +470,11 @@ static void set_io_from_upio(struct uart
+@@ -455,6 +469,11 @@ static void set_io_from_upio(struct uart
p->serial_out = mem32be_serial_out;
break;
#ifdef CONFIG_SERIAL_8250_RT288X
case UPIO_AU:
p->serial_in = au_serial_in;
-@@ -483,6 +502,7 @@ serial_port_out_sync(struct uart_port *p
+@@ -482,6 +501,7 @@ serial_port_out_sync(struct uart_port *p
case UPIO_MEM16:
case UPIO_MEM32:
case UPIO_MEM32BE:
case UPIO_AU:
p->serial_out(p, offset, value);
p->serial_in(p, UART_LCR); /* safe, no side-effects */
-@@ -2760,6 +2780,7 @@ static int serial8250_request_std_resour
+@@ -2759,6 +2779,7 @@ static int serial8250_request_std_resour
case UPIO_MEM32BE:
case UPIO_MEM16:
case UPIO_MEM:
if (!port->mapbase)
break;
-@@ -2798,6 +2819,7 @@ static void serial8250_release_std_resou
+@@ -2797,6 +2818,7 @@ static void serial8250_release_std_resou
case UPIO_MEM32BE:
case UPIO_MEM16:
case UPIO_MEM: