From: Sherry Sun Date: Fri, 14 Apr 2023 02:21:11 +0000 (+0800) Subject: tty: serial: fsl_lpuart: use UARTMODIR register bits for lpuart32 platform X-Git-Tag: v5.10.236~22 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a95f16d691ca054fa676de07f2d7cb6348327c8d;p=thirdparty%2Fkernel%2Fstable.git tty: serial: fsl_lpuart: use UARTMODIR register bits for lpuart32 platform [ Upstream commit d57d56e4dddfb5c92cd81abf8922055bf0fb85a4 ] For lpuart32 platforms, UARTMODIR register is used instead of UARTMODEM. So here should configure the corresponding UARTMODIR register bits to avoid confusion. Reviewed-by: Ilpo Järvinen Signed-off-by: Sherry Sun Link: https://lore.kernel.org/r/20230414022111.20896-1-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman Stable-dep-of: f5cb528d6441 ("tty: serial: fsl_lpuart: disable transmitter before changing RS485 related registers") Signed-off-by: Sasha Levin --- diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index b16ad6db1ef8e..5135cdc0b6644 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1351,7 +1351,7 @@ static int lpuart32_config_rs485(struct uart_port *port, 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); /* clear unsupported configurations */ @@ -1361,7 +1361,7 @@ static int lpuart32_config_rs485(struct uart_port *port, if (rs485->flags & SER_RS485_ENABLED) { /* Enable auto RS-485 RTS mode */ - modem |= UARTMODEM_TXRTSE; + modem |= UARTMODIR_TXRTSE; /* * RTS needs to be logic HIGH either during transfer _or_ after @@ -1383,9 +1383,9 @@ static int lpuart32_config_rs485(struct uart_port *port, * 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; } /* Store the new configuration */