linux/drivers/tty
Ian Jamison a0983c742a serial: imx: Update cached mctrl value when changing RTS
UART core function uart_update_mctrl relies on a cached value of
modem control lines. This was used but not updated by local RTS
control functions within imx.c. These are used for RS485 line
driver enable signalling. Having an out-of-date value in the cached
mctrl can result in the transmitter being enabled when it shouldn't
be.

Fix this by updating the mctrl value before applying it.

Signed-off-by: Ian Jamison <ian.dev@arkver.com>
Origin: id:8195c96e674517b82a6ff7fe914c7ba0f86e702b.1505375165.git.ian.dev@arkver.com
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Tested-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-10-03 20:23:38 +02:00
..
hvc powerpc updates for 4.14 2017-09-07 10:15:40 -07:00
ipwireless networking: introduce and use skb_put_data() 2017-06-16 11:48:37 -04:00
serdev tty: Convert to using %pOF instead of full_name 2017-07-30 07:35:28 -07:00
serial serial: imx: Update cached mctrl value when changing RTS 2017-10-03 20:23:38 +02:00
vt vt: Use bsearch library function in is_double_width 2017-09-18 18:31:48 +02:00
amiserial.c tty: amiserial: drop broken alt-speed support 2017-06-13 11:49:58 +02:00
bfin_jtag_comm.c
cyclades.c tty: cyclades: drop broken alt-speed support 2017-06-13 11:49:58 +02:00
ehv_bytechan.c tty: Convert to using %pOF instead of full_name 2017-07-30 07:35:28 -07:00
goldfish.c tty: goldfish: Implement support for kernel 'earlycon' parameter 2017-08-31 18:58:45 +02:00
isicom.c tty: isicom: constify pci_device_id. 2017-07-30 07:35:27 -07:00
Kconfig Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next 2017-09-10 09:57:23 -07:00
Makefile sparc64: vcc: Enable VCC module in linux 2017-08-15 21:33:50 -07:00
metag_da.c timers, drivers/tty/metag_da: Initialize the poll timer as pinned 2016-07-07 10:25:14 +02:00
mips_ejtag_fdc.c tty: mips_ejtag_fdc: constify mips_cdmm_device_id 2017-08-28 20:51:22 +02:00
moxa.c tty: moxa: constify pci_device_id. 2017-07-30 07:35:28 -07:00
moxa.h
mxser.c tty: mxser: constify pci_device_id. 2017-07-30 07:35:27 -07:00
mxser.h
n_gsm.c tty: n_gsm: Add compat_ioctl 2017-08-28 20:51:22 +02:00
n_hdlc.c format-security: move static strings to const 2017-05-08 17:15:14 -07:00
n_null.c tty: handle the case where we cannot restore a line discipline 2017-06-03 18:43:46 +09:00
n_r3964.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c
nozomi.c tty: nozomi: avoid sprintf buffer overflow 2016-11-29 20:20:07 +01:00
pty.c TTY/Serial updates for 4.14-rc1 2017-09-05 10:30:48 -07:00
rocket_int.h
rocket.c tty: rocket: drop broken alt-speed support 2017-06-13 11:49:58 +02:00
rocket.h
synclink_gt.c tty: synclink_gt: constify pci_device_id. 2017-07-30 07:35:28 -07:00
synclink.c tty: synclink: Reuse an existing error handling path 2017-09-18 18:31:48 +02:00
synclinkmp.c tty: synclinkmp: constify pci_device_id. 2017-07-30 07:35:27 -07:00
sysrq.c oom: improve oom disable handling 2017-05-03 15:52:10 -07:00
tty_audit.c
tty_baudrate.c tty: move baudrate handling code to a file of its own 2017-04-18 18:01:52 +02:00
tty_buffer.c tty: fix __tty_insert_flip_char regression 2017-08-02 06:58:17 -07:00
tty_io.c Staging/IIO driver updates for 4.14-rc1 2017-09-05 10:36:26 -07:00
tty_ioctl.c tty: move baudrate handling code to a file of its own 2017-04-18 18:01:52 +02:00
tty_jobctrl.c tty: split job control support into a file of its own 2017-04-18 18:01:52 +02:00
tty_ldisc.c TTY/Serial patches for 4.13-rc1 2017-07-03 20:04:16 -07:00
tty_ldsem.c sched/headers: Prepare to move the get_task_struct()/put_task_struct() and related APIs from <linux/sched.h> to <linux/sched/task.h> 2017-03-02 08:42:40 +01:00
tty_mutex.c
tty_port.c ttyport: trivial fix for some typo in comments 2017-09-18 18:31:48 +02:00
vcc.c sparc64: vcc: make ktermios const 2017-08-29 15:10:44 -07:00