[PATCH 31/36] serial: imx: Remove serial_rs485 sanitization

From: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
To: linux-serial@vger.kernel.org,
	Greg KH <gregkh@linuxfoundation.org>,
	Jiri Slaby <jirislaby@kernel.org>,
	Shawn Guo <shawnguo@kernel.org>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Pengutronix Kernel Team <kernel@pengutronix.de>,
	Fabio Estevam <festevam@gmail.com>,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Cc: "Ilpo Järvinen" <ilpo.jarvinen@linux.intel.com>
Subject: [PATCH 31/36] serial: imx: Remove serial_rs485 sanitization
Date: Mon,  6 Jun 2022 13:04:28 +0300	[thread overview]
Message-ID: <20220606100433.13793-32-ilpo.jarvinen@linux.intel.com> (raw)
In-Reply-To: <20220606100433.13793-1-ilpo.jarvinen@linux.intel.com>

The driver provides different rs485_supported for the case where RTS is
not available making it unnecessary to handle it in
imx_uart_rs485_config.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
---
 drivers/tty/serial/imx.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index ba853bc9b4db..1e96ddd2e262 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1913,10 +1913,6 @@ static int imx_uart_rs485_config(struct uart_port *port,
 	struct imx_port *sport = (struct imx_port *)port;
 	u32 ucr2;
 
-	/* RTS is required to control the transmitter */
-	if (!sport->have_rtscts && !sport->have_rtsgpio)
-		rs485conf->flags &= ~SER_RS485_ENABLED;
-
 	if (rs485conf->flags & SER_RS485_ENABLED) {
 		/* Enable receiver if low-active RTS signal is requested */
 		if (sport->have_rtscts &&  !sport->have_rtsgpio &&
-- 
2.30.2

