From: Felipe Balbi <balbi@ti.com>
Date: Wed, 23 Apr 2014 14:58:34 +0000 (-0500)
Subject: tty: serial: omap: remove some dead code
X-Git-Tag: firefly_0821_release~176^2~3465^2~38^2~69
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=985bfd54c826c0ba873ca0adfd5589263e0c6ee2;p=firefly-linux-kernel-4.4.55.git

tty: serial: omap: remove some dead code

nobody passes a DTR_gpio to this driver, so
this code is not necessary.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index b46aaf33f35e..66546828a8d2 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -163,10 +163,6 @@ struct uart_omap_port {
 	u8			wakeups_enabled;
 	u32			features;
 
-	int			DTR_gpio;
-	int			DTR_inverted;
-	int			DTR_active;
-
 	struct serial_rs485	rs485;
 	int			rts_gpio;
 
@@ -694,16 +690,6 @@ static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	serial_out(up, UART_MCR, up->mcr);
 	pm_runtime_mark_last_busy(up->dev);
 	pm_runtime_put_autosuspend(up->dev);
-
-	if (gpio_is_valid(up->DTR_gpio) &&
-	    !!(mctrl & TIOCM_DTR) != up->DTR_active) {
-		up->DTR_active = !up->DTR_active;
-		if (gpio_cansleep(up->DTR_gpio))
-			schedule_work(&up->qos_work);
-		else
-			gpio_set_value(up->DTR_gpio,
-				       up->DTR_active != up->DTR_inverted);
-	}
 }
 
 static void serial_omap_break_ctl(struct uart_port *port, int break_state)
@@ -847,9 +833,6 @@ static void serial_omap_uart_qos_work(struct work_struct *work)
 						qos_work);
 
 	pm_qos_update_request(&up->pm_qos_request, up->latency);
-	if (gpio_is_valid(up->DTR_gpio))
-		gpio_set_value_cansleep(up->DTR_gpio,
-					up->DTR_active != up->DTR_inverted);
 }
 
 static void
@@ -1672,28 +1655,6 @@ static int serial_omap_probe(struct platform_device *pdev)
 	if (IS_ERR(base))
 		return PTR_ERR(base);
 
-	if (gpio_is_valid(omap_up_info->DTR_gpio) &&
-	    omap_up_info->DTR_present) {
-		ret = devm_gpio_request(&pdev->dev, omap_up_info->DTR_gpio,
-				"omap-serial");
-		if (ret < 0)
-			return ret;
-		ret = gpio_direction_output(omap_up_info->DTR_gpio,
-					    omap_up_info->DTR_inverted);
-		if (ret < 0)
-			return ret;
-	}
-
-	if (gpio_is_valid(omap_up_info->DTR_gpio) &&
-	    omap_up_info->DTR_present) {
-		up->DTR_gpio = omap_up_info->DTR_gpio;
-		up->DTR_inverted = omap_up_info->DTR_inverted;
-	} else {
-		up->DTR_gpio = -EINVAL;
-	}
-
-	up->DTR_active = 0;
-
 	up->dev = &pdev->dev;
 	up->port.dev = &pdev->dev;
 	up->port.type = PORT_OMAP;