In uart_set_rs485_config() the serial core already ensures that only one of
both options RTS on send or RTS after send is set. It also assigns the
passed serial_rs485 struct to the uart port.
So remove the check and the assignment from the drivers rs485_config()
function to avoid redundancy.
Signed-off-by: Lino Sanfilippo <LinoSanfilippo@xxxxxx>
---
drivers/tty/serial/stm32-usart.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c
index 1b3a611ac39e..6a014168102c 100644
--- a/drivers/tty/serial/stm32-usart.c
+++ b/drivers/tty/serial/stm32-usart.c
@@ -107,8 +107,6 @@ static int stm32_usart_config_rs485(struct uart_port *port,
stm32_usart_clr_bits(port, ofs->cr1, BIT(cfg->uart_enable_bit));
- port->rs485 = *rs485conf;
-
rs485conf->flags |= SER_RS485_RX_DURING_TX;
if (rs485conf->flags & SER_RS485_ENABLED) {
@@ -128,13 +126,10 @@ static int stm32_usart_config_rs485(struct uart_port *port,
rs485conf->delay_rts_after_send,
baud);
- if (rs485conf->flags & SER_RS485_RTS_ON_SEND) {
+ if (rs485conf->flags & SER_RS485_RTS_ON_SEND)
cr3 &= ~USART_CR3_DEP;
- rs485conf->flags &= ~SER_RS485_RTS_AFTER_SEND;
- } else {
+ else
cr3 |= USART_CR3_DEP;
- rs485conf->flags |= SER_RS485_RTS_AFTER_SEND;
- }
writel_relaxed(cr3, port->membase + ofs->cr3);
writel_relaxed(cr1, port->membase + ofs->cr1);
--
2.35.1
