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serial: stm32: add RTS support

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Implement support of RTS in USART control register

Signed-off-by: Bich Hemon <bich.hemon@st.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bich HEMON
2017-07-13 15:08:28 +00:00
committed by Greg Kroah-Hartman
parent cc7aefd4fa
commit 35abe98f15
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/stm32-usart.c
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@@ -518,7 +518,7 @@ static void stm32_set_termios(struct uart_port *port, struct ktermios *termios,
port->status &= ~(UPSTAT_AUTOCTS | UPSTAT_AUTORTS);
if (cflag & CRTSCTS) {
port->status |= UPSTAT_AUTOCTS | UPSTAT_AUTORTS;
cr3 |= USART_CR3_CTSE;
cr3 |= USART_CR3_CTSE | USART_CR3_RTSE;
}
usartdiv = DIV_ROUND_CLOSEST(port->uartclk, baud);