[PATCH] tty: serial: atmel: use macros instead of hardcoded values

[Claudiu Beznea <claudiu.beznea@microchip.com>]

Use UART_PM_STATE_ON, UART_PM_STATE_OFF instead of hardcoded values.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
 drivers/tty/serial/atmel_serial.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 249ea35088d2..2c99a47a2535 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -2084,7 +2084,7 @@ static void atmel_serial_pm(struct uart_port *port, unsigned int state,
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 
 	switch (state) {
-	case 0:
+	case UART_PM_STATE_ON:
 		/*
 		 * Enable the peripheral clock for this serial port.
 		 * This is called on uart_open() or a resume event.
@@ -2094,7 +2094,7 @@ static void atmel_serial_pm(struct uart_port *port, unsigned int state,
 		/* re-enable interrupts if we disabled some on suspend */
 		atmel_uart_writel(port, ATMEL_US_IER, atmel_port->backup_imr);
 		break;
-	case 3:
+	case UART_PM_STATE_OFF:
 		/* Back up the interrupt mask and disable all interrupts */
 		atmel_port->backup_imr = atmel_uart_readl(port, ATMEL_US_IMR);
 		atmel_uart_writel(port, ATMEL_US_IDR, -1);
-- 
2.25.1