linux/drivers/tty
Ian Jamison 5aabd3b007 serial: imx: Avoid post-PIO cleanup if TX DMA is started
The imx_transmit_buffer function should return if TX DMA has already
been started and not just skip over the buffer PIO write loop. (Which
did fix the initial problem, but could have unintentional side-effects)

Tested on an i.MX6Q board with half-duplex RS-485 and with RS-232.

Cc: Clemens Gruber <clemens.gruber@pqgruber.com>
Cc: Uwe-Kleine König <u.kleine-koenig@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Fixes: 514ab34dba ("serial: imx: Prevent TX buffer PIO write when a DMA has been started")
Signed-off-by: Ian Jamison <ian.dev@arkver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-28 20:51:22 +02:00
..
hvc tty: Convert to using %pOF instead of full_name 2017-07-30 07:35:28 -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: Avoid post-PIO cleanup if TX DMA is started 2017-08-28 20:51:22 +02:00
vt vt: fix \e[2m using the wrong placeholder color on graphical consoles 2017-06-09 11:20:08 +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: Fix a parameter of a call to free_irq 2017-01-12 11:51:25 +01:00
isicom.c tty: isicom: constify pci_device_id. 2017-07-30 07:35:27 -07:00
Kconfig devpts: Make each mount of devpts an independent filesystem. 2016-06-05 10:36:01 -07:00
Makefile tty: handle the case where we cannot restore a line discipline 2017-06-03 18:43:46 +09:00
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 timers, drivers/tty/mips_ejtag: Initialize the poll timer as pinned 2016-07-07 10:34:59 +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 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2017-07-05 12:31:59 -07:00
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 Fix OpenSSH pty regression on close 2016-05-01 13:22:54 -07:00
nozomi.c tty: nozomi: avoid sprintf buffer overflow 2016-11-29 20:20:07 +01:00
pty.c tty: hide unused pty_get_peer function 2017-07-17 17:04:41 +02:00
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: constify pci_device_id. 2017-07-30 07:35:27 -07:00
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: audit: remove unused variable 2016-03-07 16:11:14 -08:00
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 tty: add function to convert device name to number 2017-06-27 09:08:47 +02:00
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 Merge 4.5-rc4 into tty-next 2016-02-14 14:36:04 -08:00
tty_port.c Revert "tty: fix port buffer locking" 2017-06-04 10:23:25 +02:00