linux-kernel - [PATCH 15/36] serial: fsl_lpuart: Fill in rs485

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Date:   Mon,  6 Jun 2022 13:04:12 +0300
From:   Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To:     linux-serial@...r.kernel.org, Greg KH <gregkh@...uxfoundation.org>,
        Jiri Slaby <jirislaby@...nel.org>, linux-kernel@...r.kernel.org
Cc:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 15/36] serial: fsl_lpuart: Fill in rs485_supported

Add information on supported serial_rs485 features.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 drivers/tty/serial/fsl_lpuart.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index 509a7912fa9d..88692dc9eefa 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -2621,6 +2621,11 @@ static struct uart_driver lpuart_reg = {
 	.cons		= LPUART_CONSOLE,
 };
 
+static const struct serial_rs485 lpuart_rs485_supported = {
+	.flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND | SER_RS485_RTS_AFTER_SEND,
+	/* delay_rts_* and RX_DURING_TX are not supported */
+};
+
 static int lpuart_probe(struct platform_device *pdev)
 {
 	const struct lpuart_soc_data *sdata = of_device_get_match_data(&pdev->dev);
@@ -2660,6 +2665,7 @@ static int lpuart_probe(struct platform_device *pdev)
 		sport->port.rs485_config = lpuart32_config_rs485;
 	else
 		sport->port.rs485_config = lpuart_config_rs485;
+	sport->port.rs485_supported = &lpuart_rs485_supported;
 
 	sport->ipg_clk = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(sport->ipg_clk)) {
-- 
2.30.2