diff mbox series

[09/36] serial: 8250_lpc18cc: Fill in rs485_supported

Message ID 20220606100433.13793-10-ilpo.jarvinen@linux.intel.com
State New
Headers show
Series RS485 serial_rs485 sanitization | expand

Commit Message

Ilpo Järvinen June 6, 2022, 10:04 a.m. UTC 
Add information on supported serial_rs485 features.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/tty/serial/8250/8250_lpc18xx.c | 7 +++++++
 1 file changed, 7 insertions(+)
diff mbox series

Patch

diff --git a/drivers/tty/serial/8250/8250_lpc18xx.c b/drivers/tty/serial/8250/8250_lpc18xx.c
index 570e25d6f37e..66ce5d05fe9c 100644
--- a/drivers/tty/serial/8250/8250_lpc18xx.c
+++ b/drivers/tty/serial/8250/8250_lpc18xx.c
@@ -98,6 +98,12 @@  static void lpc18xx_uart_serial_out(struct uart_port *p, int offset, int value)
 	writel(value, p->membase + offset);
 }
 
+static const struct serial_rs485 lpc18xx_rs485_supported = {
+	.flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND,
+	.delay_rts_after_send = 1,
+	/* Delay RTS before send is not supported */
+};
+
 static int lpc18xx_serial_probe(struct platform_device *pdev)
 {
 	struct lpc18xx_uart_data *data;
@@ -168,6 +174,7 @@  static int lpc18xx_serial_probe(struct platform_device *pdev)
 	uart.port.uartclk = clk_get_rate(data->clk_uart);
 	uart.port.private_data = data;
 	uart.port.rs485_config = lpc18xx_rs485_config;
+	uart.port.rs485_supported = &lpc18xx_rs485_supported;
 	uart.port.serial_out = lpc18xx_uart_serial_out;
 
 	uart.dma = &data->dma;