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authorJohan Hovold <johan@kernel.org>2017-01-06 19:15:20 +0100
committerJohan Hovold <johan@kernel.org>2017-01-16 12:32:20 +0100
commitbeea33d4f94bdd816172f5f554cbabd12c16d909 (patch)
treef8655abecdc6d42c2eaab3e3fd7fe347839647d3 /drivers/usb/serial/ch341.c
parent91e0efcd4c23d98479a2f44753a53bc3456bba97 (diff)
USB: serial: ch341: rename shadow modem-control register
Rename the shadow modem-control register currently named "line_control" to the less confusing "mcr". Signed-off-by: Johan Hovold <johan@kernel.org>
Diffstat (limited to 'drivers/usb/serial/ch341.c')
-rw-r--r--drivers/usb/serial/ch341.c28
1 files changed, 14 insertions, 14 deletions
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 84c10b63732b..cab7e2ca4e47 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -93,7 +93,7 @@ MODULE_DEVICE_TABLE(usb, id_table);
struct ch341_private {
spinlock_t lock; /* access lock */
unsigned baud_rate; /* set baud rate */
- u8 line_control; /* set line control value RTS/DTR */
+ u8 mcr;
u8 line_status; /* active status of modem control inputs */
u8 lcr;
};
@@ -251,7 +251,7 @@ static int ch341_configure(struct usb_device *dev, struct ch341_private *priv)
if (r < 0)
goto out;
- r = ch341_set_handshake(dev, priv->line_control);
+ r = ch341_set_handshake(dev, priv->mcr);
out: kfree(buffer);
return r;
@@ -306,11 +306,11 @@ static void ch341_dtr_rts(struct usb_serial_port *port, int on)
/* drop DTR and RTS */
spin_lock_irqsave(&priv->lock, flags);
if (on)
- priv->line_control |= CH341_BIT_RTS | CH341_BIT_DTR;
+ priv->mcr |= CH341_BIT_RTS | CH341_BIT_DTR;
else
- priv->line_control &= ~(CH341_BIT_RTS | CH341_BIT_DTR);
+ priv->mcr &= ~(CH341_BIT_RTS | CH341_BIT_DTR);
spin_unlock_irqrestore(&priv->lock, flags);
- ch341_set_handshake(port->serial->dev, priv->line_control);
+ ch341_set_handshake(port->serial->dev, priv->mcr);
}
static void ch341_close(struct usb_serial_port *port)
@@ -415,12 +415,12 @@ static void ch341_set_termios(struct tty_struct *tty,
spin_lock_irqsave(&priv->lock, flags);
if (C_BAUD(tty) == B0)
- priv->line_control &= ~(CH341_BIT_DTR | CH341_BIT_RTS);
+ priv->mcr &= ~(CH341_BIT_DTR | CH341_BIT_RTS);
else if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
- priv->line_control |= (CH341_BIT_DTR | CH341_BIT_RTS);
+ priv->mcr |= (CH341_BIT_DTR | CH341_BIT_RTS);
spin_unlock_irqrestore(&priv->lock, flags);
- ch341_set_handshake(port->serial->dev, priv->line_control);
+ ch341_set_handshake(port->serial->dev, priv->mcr);
}
static void ch341_break_ctl(struct tty_struct *tty, int break_state)
@@ -476,14 +476,14 @@ static int ch341_tiocmset(struct tty_struct *tty,
spin_lock_irqsave(&priv->lock, flags);
if (set & TIOCM_RTS)
- priv->line_control |= CH341_BIT_RTS;
+ priv->mcr |= CH341_BIT_RTS;
if (set & TIOCM_DTR)
- priv->line_control |= CH341_BIT_DTR;
+ priv->mcr |= CH341_BIT_DTR;
if (clear & TIOCM_RTS)
- priv->line_control &= ~CH341_BIT_RTS;
+ priv->mcr &= ~CH341_BIT_RTS;
if (clear & TIOCM_DTR)
- priv->line_control &= ~CH341_BIT_DTR;
- control = priv->line_control;
+ priv->mcr &= ~CH341_BIT_DTR;
+ control = priv->mcr;
spin_unlock_irqrestore(&priv->lock, flags);
return ch341_set_handshake(port->serial->dev, control);
@@ -577,7 +577,7 @@ static int ch341_tiocmget(struct tty_struct *tty)
unsigned int result;
spin_lock_irqsave(&priv->lock, flags);
- mcr = priv->line_control;
+ mcr = priv->mcr;
status = priv->line_status;
spin_unlock_irqrestore(&priv->lock, flags);