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tty: serial: atmel: use macros instead of hardcoded values 

Use UART_PM_STATE_ON, UART_PM_STATE_OFF instead of hardcoded values.

Reviewed-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20211007112014.2332019-1-claudiu.beznea@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Claudiu Beznea 2021-10-07 14:20:14 +03:00 committed by Greg Kroah-Hartman
parent 4c9883e1f4
commit aec079f887
1 changed files with 2 additions and 2 deletions
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4
drivers/tty/serial/atmel_serial.c
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@ -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);