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serial: imx: get rid of imx_uart_rts_auto() 

Called in only one place, for RS232, it only obscures things, as it
doesn't go well with 2 similar named functions,
imx_uart_rts_inactive() and imx_uart_rts_active(), that both are
RS485-specific.

Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Sergey Organov <sorganov@gmail.com>
Link: https://lore.kernel.org/r/1564167161-3972-4-git-send-email-sorganov@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sergey Organov 2019-07-26 21:52:41 +03:00 committed by Greg Kroah-Hartman
parent 197540dc83
commit b777b5de6a
1 changed files with 8 additions and 13 deletions
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21
drivers/tty/serial/imx.c
View File

@ -402,17 +402,6 @@ static void imx_uart_rts_inactive(struct imx_port *sport, u32 *ucr2)
mctrl_gpio_set(sport->gpios, sport->port.mctrl);
}
/* called with port.lock taken and irqs caller dependent */
static void imx_uart_rts_auto(struct imx_port *sport, u32 *ucr2)
{
/*
* Only let receiver control RTS output if we were not requested to have
* RTS inactive (which then should take precedence).
*/
if (*ucr2 & UCR2_CTS)
*ucr2 |= UCR2_CTSC;
}
/* called with port.lock taken and irqs off */
static void imx_uart_start_rx(struct uart_port *port)
{
@ -1604,8 +1593,14 @@ imx_uart_set_termios(struct uart_port *port, struct ktermios *termios,
else
imx_uart_rts_inactive(sport, &ucr2);
} else if (termios->c_cflag & CRTSCTS)
imx_uart_rts_auto(sport, &ucr2);
} else if (termios->c_cflag & CRTSCTS) {
/*
* Only let receiver control RTS output if we were not requested
* to have RTS inactive (which then should take precedence).
*/
if (ucr2 & UCR2_CTS)
ucr2 |= UCR2_CTSC;
}
if (termios->c_cflag & CRTSCTS)
ucr2 &= ~UCR2_IRTS;