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-rw-r--r--drivers/tty/serial/fsl_lpuart.c28
1 files changed, 1 insertions, 27 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 080b462c61dc..895766599b84 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1403,17 +1403,7 @@ static int lpuart32_config_rs485(struct uart_port *port,
static unsigned int lpuart_get_mctrl(struct uart_port *port)
{
- unsigned int temp = 0;
- unsigned char reg;
-
- reg = readb(port->membase + UARTMODEM);
- if (reg & UARTMODEM_TXCTSE)
- temp |= TIOCM_CTS;
-
- if (reg & UARTMODEM_RXRTSE)
- temp |= TIOCM_RTS;
-
- return temp;
+ return 0;
}
static unsigned int lpuart32_get_mctrl(struct uart_port *port)
@@ -1423,23 +1413,7 @@ static unsigned int lpuart32_get_mctrl(struct uart_port *port)
static void lpuart_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
- unsigned char temp;
- struct lpuart_port *sport = container_of(port,
- struct lpuart_port, port);
-
- /* Make sure RXRTSE bit is not set when RS485 is enabled */
- if (!(sport->port.rs485.flags & SER_RS485_ENABLED)) {
- temp = readb(sport->port.membase + UARTMODEM) &
- ~(UARTMODEM_RXRTSE | UARTMODEM_TXCTSE);
-
- if (mctrl & TIOCM_RTS)
- temp |= UARTMODEM_RXRTSE;
- if (mctrl & TIOCM_CTS)
- temp |= UARTMODEM_TXCTSE;
-
- writeb(temp, port->membase + UARTMODEM);
- }
}
static void lpuart32_set_mctrl(struct uart_port *port, unsigned int mctrl)