linux/drivers/tty
Huang Shijie 0059202101 serial: mxs-auart: fix the wrong RTS hardware flow control
Without checking if the auart supports the hardware flow control or not,
the old mxs_auart_set_mctrl() asserted the RTS pin blindly.

This will causes the auart receives wrong data in the following case:
   The far-end has already started the write operation, and wait for
the auart asserts the RTS pin. Then the auart starts the read operation,
but mxs_auart_set_mctrl() may be called before we set the RTSCTS in the
mxs_auart_settermios(). So the RTS pin is asserted in a wrong situation,
and we get the wrong data in the end.

This bug has been catched when I connect the mx23(DTE) to the mx53(DCE).

This patch also replaces the AUART_CTRL2_RTS with AUART_CTRL2_RTSEN.
We should use the real the hardware flow control, not the software-controled
hardware flow control.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-08-16 12:15:33 -07:00
..
hvc Features: 2012-07-24 13:14:03 -07:00
ipwireless TTY: ipwireless, use tty from tty_port 2012-04-09 11:30:39 -07:00
serial serial: mxs-auart: fix the wrong RTS hardware flow control 2012-08-16 12:15:33 -07:00
vt vt: fix race in vt_waitactive() 2012-07-26 13:37:02 -07:00
amiserial.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
bfin_jtag_comm.c TTY: bfin_jtag_comm, use tty from tty_port 2012-04-09 11:28:18 -07:00
cyclades.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
ehv_bytechan.c TTY: remove re-assignments to tty_driver members 2012-03-08 11:37:58 -08:00
isicom.c Documentation: remove references to /etc/modprobe.conf 2012-03-30 16:03:15 -07:00
Kconfig tty/powerpc: early udbg consoles can't be modules 2012-02-24 16:11:50 -08:00
Makefile
moxa.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
moxa.h
mxser.c tty: mxser: local variables should not be exposed globally 2012-05-04 16:42:14 -07:00
mxser.h
n_gsm.c TTY: remove re-assignments to tty_driver members 2012-03-08 11:37:58 -08:00
n_hdlc.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
n_r3964.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c TTY: n_tty, do not dereference user buffer 2012-04-29 22:13:54 -04:00
nozomi.c TTY: remove re-assignments to tty_driver members 2012-03-08 11:37:58 -08:00
pty.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
rocket.c TTY: remove unneeded tty->index checks 2012-03-08 11:42:21 -08:00
rocket.h
rocket_int.h
synclink.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
synclink_gt.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
synclinkmp.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
sysrq.c sysrq: use SEND_SIG_FORCED instead of force_sig() 2012-04-05 15:25:50 -07:00
tty_audit.c
tty_buffer.c tty: hold lock across tty buffer finding and buffer filling 2012-04-09 12:12:45 -07:00
tty_io.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
tty_ioctl.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
tty_ldisc.c tty ldisc: Close/Reopen race prevention should check the proper flag 2012-07-26 13:37:06 -07:00
tty_mutex.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00
tty_port.c tty: Revert the tty locking series, it needs more work 2012-06-02 15:21:43 -07:00