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| author | Sergey Organov <sorganov@gmail.com> | 2019-07-26 21:52:41 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-04 12:43:46 +0200 |
| commit | b777b5de6aaa98df37c0fe1f7a33fa1c63d0e326 (patch) | |
| tree | 1541df9ff8cc72626c4b2cce19254d76db106b99 /drivers/tty/serial/imx.c | |
| parent | 197540dc8301a296e8ae7aa062f9f61f047eea05 (diff) | |
| download | linux-stable-b777b5de6aaa98df37c0fe1f7a33fa1c63d0e326.tar.gz linux-stable-b777b5de6aaa98df37c0fe1f7a33fa1c63d0e326.tar.bz2 linux-stable-b777b5de6aaa98df37c0fe1f7a33fa1c63d0e326.zip | |
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>
Diffstat (limited to 'drivers/tty/serial/imx.c')
| -rw-r--r-- | drivers/tty/serial/imx.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 059ba354d17e..d9a73c7683ea 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -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; |