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Date: Mon, 6 Jun 2022 13:04:06 +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>,
Vladimir Zapolskiy <vz@...ia.com>,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Subject: [PATCH 09/36] serial: 8250_lpc18cc: Fill in rs485_supported
Add information on supported serial_rs485 features.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
---
drivers/tty/serial/8250/8250_lpc18xx.c | 7 +++++++
1 file changed, 7 insertions(+)
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;
--
2.30.2
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