[PATCH v2] serial: mxs-auart: replace hardcoded 1 with predefined macro GPIO_LINE_DIRECTION_IN

[Nikola Z. Ivanov]

The GPIO_LINE_DIRECTION_* definitions have just recently been exposed to
gpio consumers.h by breaking them out in a separate defs.h file.

Use this to validate the gpio direction instead of the hard-coded literal.

Signed-off-by: Nikola Z. Ivanov <zlatistiv@xxxxxxxxx>
---
Changes since v1:
  - Commit title change
  https://lore.kernel.org/all/26cd0656-ca76-4cb7-9f1e-b8c042a7e2cb@xxxxxxxxx/

 drivers/tty/serial/mxs-auart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 693b491f1e75..697318dbb146 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -1520,7 +1520,7 @@ static int mxs_auart_init_gpios(struct mxs_auart_port *s, struct device *dev)
 
 	for (i = 0; i < UART_GPIO_MAX; i++) {
 		gpiod = mctrl_gpio_to_gpiod(s->gpios, i);
-		if (gpiod && (gpiod_get_direction(gpiod) == 1))
+		if (gpiod && (gpiod_get_direction(gpiod) == GPIO_LINE_DIRECTION_IN))
 			s->gpio_irq[i] = gpiod_to_irq(gpiod);
 		else
 			s->gpio_irq[i] = -EINVAL;
-- 
2.53.0