[PATCH v5 3/3] serial: imx: get rid of imx_uart_rts_auto()
From: Sergey Organov <hidden>
Date: 2019-07-22 09:23:39
Also in:
linux-serial
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
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: Uwe Kleine-König <redacted> Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Sergey Organov <redacted> --- drivers/tty/serial/imx.c | 21 ++++++++------------- 1 file changed, 8 insertions(+), 13 deletions(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 059ba35..d9a73c7 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;
--
2.10.0.1.g57b01a3
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