Blackfin arch: fix bug - some serial header files set RTS to an input when they should all be outputs

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

arch/blackfin/mach-bf533/include/mach/bfin_serial_5xx.h

@@ -158,7 +158,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 	}
 	if (uart->rts_pin >= 0) {
 		gpio_request(uart->rts_pin, DRIVER_NAME);
-		gpio_direction_input(uart->rts_pin, 0);
+		gpio_direction_output(uart->rts_pin, 0);
 	}
 #endif
 }

arch/blackfin/mach-bf561/include/mach/bfin_serial_5xx.h

@@ -158,7 +158,7 @@ static void bfin_serial_hw_init(struct bfin_serial_port *uart)
 	}
 	if (uart->rts_pin >= 0) {
 		gpio_request(uart->rts_pin, DRIVER_NAME);
-		gpio_direction_input(uart->rts_pin, 0);
+		gpio_direction_output(uart->rts_pin, 0);
 	}
 #endif
 }