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tty: Replace ASYNC_CTS_FLOW bit and update atomically

Telusuri Sumber 
Replace ASYNC_CTS_FLOW bit in the tty_port::flags field with
TTY_PORT_CTS_FLOW bit in the tty_port::iflags field. Add
tty_port_set_cts_flow() helper to abstract the atomic bit ops.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Hurley
2016-04-09 17:53:21 -07:00
committed by Greg Kroah-Hartman
orang tua e4d38f334a
melakukan 5604a98e2f
10 mengubah file dengan 25 tambahan dan 38 penghapusan
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10
drivers/tty/cyclades.c
Melihat File

@@ -2083,13 +2083,11 @@ static void cy_set_line_char(struct cyclades_port *info, struct tty_struct *tty)
info->cor1 |= CyPARITY_NONE;
/* CTS flow control flag */
if (cflag & CRTSCTS) {
info->port.flags |= ASYNC_CTS_FLOW;
tty_port_set_cts_flow(&info->port, cflag & CRTSCTS);
if (cflag & CRTSCTS)
info->cor2 |= CyCtsAE;
} else {
info->port.flags &= ~ASYNC_CTS_FLOW;
else
info->cor2 &= ~CyCtsAE;
}
if (cflag & CLOCAL)
info->port.flags &= ~ASYNC_CHECK_CD;
else
@@ -2234,7 +2232,7 @@ static void cy_set_line_char(struct cyclades_port *info, struct tty_struct *tty)
}
/* As the HW flow control is done in firmware, the driver
doesn't need to care about it */
info->port.flags &= ~ASYNC_CTS_FLOW;
tty_port_set_cts_flow(&info->port, 0);
/* XON/XOFF/XANY flow control flags */
sw_flow = 0;