[PATCH 8/8] serial: 8250: lpc18xx: Remove redundant sanity check for RS485 flags
From: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Date: 2022-06-22 15:47:46
Also in:
linux-devicetree, linux-serial, lkml
Subsystem:
8250/16?50 (and clone uarts) serial driver, the rest, tty layer and serial drivers · Maintainers:
Greg Kroah-Hartman, Linus Torvalds, Jiri Slaby
From: Lino Sanfilippo <redacted> Before the drivers rs485_config() function is called the serial core already ensures that only one of both options RTS on send or RTS after send is set. So remove the concerning sanity check in the driver function to avoid redundancy. Signed-off-by: Lino Sanfilippo <redacted> --- drivers/tty/serial/8250/8250_lpc18xx.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_lpc18xx.c b/drivers/tty/serial/8250/8250_lpc18xx.c
index 3a1cb51cbc91..21896adeb172 100644
--- a/drivers/tty/serial/8250/8250_lpc18xx.c
+++ b/drivers/tty/serial/8250/8250_lpc18xx.c@@ -44,12 +44,8 @@ static int lpc18xx_rs485_config(struct uart_port *port, rs485_ctrl_reg |= LPC18XX_UART_RS485CTRL_NMMEN | LPC18XX_UART_RS485CTRL_DCTRL; - if (rs485->flags & SER_RS485_RTS_ON_SEND) { + if (rs485->flags & SER_RS485_RTS_ON_SEND) rs485_ctrl_reg |= LPC18XX_UART_RS485CTRL_OINV; - rs485->flags &= ~SER_RS485_RTS_AFTER_SEND; - } else { - rs485->flags |= SER_RS485_RTS_AFTER_SEND; - } } if (rs485->delay_rts_after_send) {
--
2.36.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel