diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/stm32-usart.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/tty/serial/stm32-usart.c b/drivers/tty/serial/stm32-usart.c index b7b44f4050d4..db3dd9731ee1 100644 --- a/drivers/tty/serial/stm32-usart.c +++ b/drivers/tty/serial/stm32-usart.c @@ -1375,6 +1375,13 @@ static void stm32_usart_deinit_port(struct stm32_port *stm32port) clk_disable_unprepare(stm32port->clk); } +static const struct serial_rs485 stm32_rs485_supported = { + .flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND | + SER_RS485_RX_DURING_TX, + .delay_rts_before_send = 1, + .delay_rts_after_send = 1, +}; + static int stm32_usart_init_port(struct stm32_port *stm32port, struct platform_device *pdev) { @@ -1394,6 +1401,7 @@ static int stm32_usart_init_port(struct stm32_port *stm32port, port->has_sysrq = IS_ENABLED(CONFIG_SERIAL_STM32_CONSOLE); port->irq = irq; port->rs485_config = stm32_usart_config_rs485; + port->rs485_supported = &stm32_rs485_supported; ret = stm32_usart_init_rs485(port, pdev); if (ret) |