linux-kernel - [PATCH 7/9] serial: atmel_serial: set SER_RS485_DELAY_IN

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Date:   Wed, 20 Feb 2019 16:31:17 +0100
From:   Martin Kepplinger <martin.kepplinger@...zinger.com>
To:     <gregkh@...uxfoundation.org>, <robh+dt@...nel.org>,
        <mark.rutland@....com>, <jslaby@...e.com>, <corbet@....net>,
        <richard.genoud@...il.com>, <nicolas.ferre@...rochip.com>,
        <alexandre.belloni@...tlin.com>, <ludovic.desroches@...rochip.com>,
        <mcoquelin.stm32@...il.com>, <alexandre.torgue@...com>,
        <linux-serial@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>
CC:     <linux-kernel@...r.kernel.org>
Subject: [PATCH 7/9] serial: atmel_serial: set SER_RS485_DELAY_IN_USEC accordingly

Unset the SER_RS485_DELAY_IN_USEC flag during rs485 config for
userspace to get the correct setting.

Signed-off-by: Martin Kepplinger <martin.kepplinger@...zinger.com>
---
 drivers/tty/serial/atmel_serial.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 05147fe24343..36ab1c131d36 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -346,6 +346,9 @@ static int atmel_config_rs485(struct uart_port *port,
 
 	port->rs485 = *rs485conf;
 
+	/* delays are in milliseconds */
+	rs485conf->flags &= ~SER_RS485_DELAY_IN_USEC;
+
 	if (rs485conf->flags & SER_RS485_ENABLED) {
 		dev_dbg(port->dev, "Setting UART to RS485\n");
 		atmel_port->tx_done_mask = ATMEL_US_TXEMPTY;
-- 
2.20.1


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