[PATCH V2] tty: serial: fsl_lpuart: use UARTMODIR register bits for lpuart32 platform

From: Sherry Sun
Date: Thu Apr 13 2023 - 22:24:58 EST


For lpuart32 platforms, UARTMODIR register is used instead of UARTMODEM.
So here should configure the corresponding UARTMODIR register bits to
avoid confusion.

Signed-off-by: Sherry Sun <sherry.sun@xxxxxxx>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
---
Changes in V2
1. Remove the fix tag.
2. Add Reviewed-by tag.
3. Improve the commit message.
---
drivers/tty/serial/fsl_lpuart.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 074bfed57fc9..9845d3f5b84b 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1406,12 +1406,12 @@ static int lpuart32_config_rs485(struct uart_port *port, struct ktermios *termio
struct lpuart_port, port);

unsigned long modem = lpuart32_read(&sport->port, UARTMODIR)
- & ~(UARTMODEM_TXRTSPOL | UARTMODEM_TXRTSE);
+ & ~(UARTMODIR_TXRTSPOL | UARTMODIR_TXRTSE);
lpuart32_write(&sport->port, modem, UARTMODIR);

if (rs485->flags & SER_RS485_ENABLED) {
/* Enable auto RS-485 RTS mode */
- modem |= UARTMODEM_TXRTSE;
+ modem |= UARTMODIR_TXRTSE;

/*
* The hardware defaults to RTS logic HIGH while transfer.
@@ -1420,9 +1420,9 @@ static int lpuart32_config_rs485(struct uart_port *port, struct ktermios *termio
* Note: UART is assumed to be active high.
*/
if (rs485->flags & SER_RS485_RTS_ON_SEND)
- modem |= UARTMODEM_TXRTSPOL;
+ modem |= UARTMODIR_TXRTSPOL;
else if (rs485->flags & SER_RS485_RTS_AFTER_SEND)
- modem &= ~UARTMODEM_TXRTSPOL;
+ modem &= ~UARTMODIR_TXRTSPOL;
}

lpuart32_write(&sport->port, modem, UARTMODIR);
--
2.17.1