From 863981e96738983919de841ec669e157e6bdaeb0 Mon Sep 17 00:00:00 2001
From: André Fabian Silva Delgado <emulatorman@parabola.nu>
Date: Sun, 11 Sep 2016 04:34:46 -0300
Subject: Linux-libre 4.7.1-gnu

---
 drivers/tty/mxser.c | 35 +++++++++++++----------------------
 1 file changed, 13 insertions(+), 22 deletions(-)

(limited to 'drivers/tty/mxser.c')

diff --git a/drivers/tty/mxser.c b/drivers/tty/mxser.c
index 2f12bb9f4..98d2bd167 100644
--- a/drivers/tty/mxser.c
+++ b/drivers/tty/mxser.c
@@ -711,8 +711,8 @@ static int mxser_change_speed(struct tty_struct *tty,
 	/* CTS flow control flag and modem status interrupts */
 	info->IER &= ~UART_IER_MSI;
 	info->MCR &= ~UART_MCR_AFE;
+	tty_port_set_cts_flow(&info->port, cflag & CRTSCTS);
 	if (cflag & CRTSCTS) {
-		info->port.flags |= ASYNC_CTS_FLOW;
 		info->IER |= UART_IER_MSI;
 		if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
 			info->MCR |= UART_MCR_AFE;
@@ -744,16 +744,11 @@ static int mxser_change_speed(struct tty_struct *tty,
 				}
 			}
 		}
-	} else {
-		info->port.flags &= ~ASYNC_CTS_FLOW;
 	}
 	outb(info->MCR, info->ioaddr + UART_MCR);
-	if (cflag & CLOCAL) {
-		info->port.flags &= ~ASYNC_CHECK_CD;
-	} else {
-		info->port.flags |= ASYNC_CHECK_CD;
+	tty_port_set_check_carrier(&info->port, ~cflag & CLOCAL);
+	if (~cflag & CLOCAL)
 		info->IER |= UART_IER_MSI;
-	}
 	outb(info->IER, info->ioaddr + UART_IER);
 
 	/*
@@ -826,7 +821,7 @@ static void mxser_check_modem_status(struct tty_struct *tty,
 	port->mon_data.modem_status = status;
 	wake_up_interruptible(&port->port.delta_msr_wait);
 
-	if ((port->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
+	if (tty_port_check_carrier(&port->port) && (status & UART_MSR_DDCD)) {
 		if (status & UART_MSR_DCD)
 			wake_up_interruptible(&port->port.open_wait);
 	}
@@ -1086,12 +1081,10 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
 	mutex_lock(&port->mutex);
 	mxser_close_port(port);
 	mxser_flush_buffer(tty);
-	if (test_bit(ASYNCB_INITIALIZED, &port->flags)) {
-		if (C_HUPCL(tty))
-			tty_port_lower_dtr_rts(port);
-	}
+	if (tty_port_initialized(port) && C_HUPCL(tty))
+		tty_port_lower_dtr_rts(port);
 	mxser_shutdown_port(port);
-	clear_bit(ASYNCB_INITIALIZED, &port->flags);
+	tty_port_set_initialized(port, 0);
 	mutex_unlock(&port->mutex);
 	info->closing = 0;
 	/* Right now the tty_port set is done outside of the close_end helper
@@ -1287,7 +1280,7 @@ static int mxser_set_serial_info(struct tty_struct *tty,
 
 	process_txrx_fifo(info);
 
-	if (test_bit(ASYNCB_INITIALIZED, &port->flags)) {
+	if (tty_port_initialized(port)) {
 		if (flags != (port->flags & ASYNC_SPD_MASK)) {
 			spin_lock_irqsave(&info->slock, sl_flags);
 			mxser_change_speed(tty, NULL);
@@ -1296,7 +1289,7 @@ static int mxser_set_serial_info(struct tty_struct *tty,
 	} else {
 		retval = mxser_activate(port, tty);
 		if (retval == 0)
-			set_bit(ASYNCB_INITIALIZED, &port->flags);
+			tty_port_set_initialized(port, 1);
 	}
 	return retval;
 }
@@ -1334,7 +1327,7 @@ static int mxser_tiocmget(struct tty_struct *tty)
 
 	if (tty->index == MXSER_PORTS)
 		return -ENOIOCTLCMD;
-	if (test_bit(TTY_IO_ERROR, &tty->flags))
+	if (tty_io_error(tty))
 		return -EIO;
 
 	control = info->MCR;
@@ -1361,7 +1354,7 @@ static int mxser_tiocmset(struct tty_struct *tty,
 
 	if (tty->index == MXSER_PORTS)
 		return -ENOIOCTLCMD;
-	if (test_bit(TTY_IO_ERROR, &tty->flags))
+	if (tty_io_error(tty))
 		return -EIO;
 
 	spin_lock_irqsave(&info->slock, flags);
@@ -1715,8 +1708,7 @@ static int mxser_ioctl(struct tty_struct *tty,
 		return 0;
 	}
 
-	if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT &&
-			test_bit(TTY_IO_ERROR, &tty->flags))
+	if (cmd != TIOCGSERIAL && cmd != TIOCMIWAIT && tty_io_error(tty))
 		return -EIO;
 
 	switch (cmd) {
@@ -2257,7 +2249,7 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id)
 				iir &= MOXA_MUST_IIR_MASK;
 				tty = tty_port_tty_get(&port->port);
 				if (!tty || port->closing ||
-				    !(port->port.flags & ASYNC_INITIALIZED)) {
+				    !tty_port_initialized(&port->port)) {
 					status = inb(port->ioaddr + UART_LSR);
 					outb(0x27, port->ioaddr + UART_FCR);
 					inb(port->ioaddr + UART_MSR);
@@ -2400,7 +2392,6 @@ static int mxser_initbrd(struct mxser_board *brd,
 		if (brd->chip_flag != MOXA_OTHER_UART)
 			mxser_enable_must_enchance_mode(info->ioaddr);
 
-		info->port.flags = ASYNC_SHARE_IRQ;
 		info->type = brd->uart_type;
 
 		process_txrx_fifo(info);
-- 
cgit v1.2.3-54-g00ecf