linux-kernel - [PATCH 11/36] serial: 8250_pci: Fill in rs485_supported for pci

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Date:   Mon,  6 Jun 2022 13:04:08 +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 11/36] serial: 8250_pci: Fill in rs485_supported for pci_fintek

Add information on supported serial_rs485 features.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
 drivers/tty/serial/8250/8250_pci.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index fb0a49e39072..a76254031bc2 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1597,6 +1597,11 @@ static int pci_fintek_rs485_config(struct uart_port *port,
 	return 0;
 }
 
+static const struct serial_rs485 pci_fintek_rs485_supported = {
+	.flags = SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND,
+	/* F81504/508/512 does not support RTS delay before or after send */
+};
+
 static int pci_fintek_setup(struct serial_private *priv,
 			    const struct pciserial_board *board,
 			    struct uart_8250_port *port, int idx)
@@ -1616,6 +1621,7 @@ static int pci_fintek_setup(struct serial_private *priv,
 	port->port.iotype = UPIO_PORT;
 	port->port.iobase = iobase;
 	port->port.rs485_config = pci_fintek_rs485_config;
+	port->port.rs485_supported = &pci_fintek_rs485_supported;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(u8), GFP_KERNEL);
 	if (!data)
-- 
2.30.2