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7e11577ef6
linux/drivers/tty
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Lucas Stach 7e11577ef6 serial: imx: re-enable DMA support without hardware flow control 
The commit enabling DMA support even if no flow control is present
was reverted on the grounds that it uncovered a number of bugs in
the code that lead to hanging tty devices and/or missing characters.

After tracking down the issues it is clear that those were generic
bugs and had nothing to do with flow control being present or not,
only that allowing DMA without hardware flow control increased
the exposure of that code a lot.

Now that those bugs are fixed, it should be safe to re-enable DMA
support.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-10-04 18:43:30 +01:00
..
hvc ARM64: TTY: hvc_dcc: Add support for ARM64 dcc 2015-10-04 17:49:27 +01:00
ipwireless Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2015-04-14 09:50:27 -07:00
serial serial: imx: re-enable DMA support without hardware flow control 2015-10-04 18:43:30 +01:00
vt tty: vt: Fix !TASK_RUNNING diagnostic warning from paste_selection() 2015-07-23 18:08:29 -07:00
amiserial.c tty: amiserial.c: move assignment out of if () block 2015-05-10 19:04:16 +02:00
bfin_jtag_comm.c TTY: bfin_jtag_comm: remove incorrect wait_until_sent operation 2015-03-07 03:44:14 +01:00
cyclades.c tty: remove buf parameter from tty_name() 2015-05-06 22:26:57 +02:00
ehv_bytechan.c tty: remove unused variable sprop 2015-02-03 15:52:13 -08:00
goldfish.c staging: goldfish: Fix pointer cast for 32 bits 2015-05-31 11:40:14 +09:00
isicom.c tty/isicom: fix big-endian compile warning 2015-02-02 10:11:25 -08:00
Kconfig ttyFDC: Implement KGDB IO operations. 2015-03-31 12:04:13 +02:00
Makefile TTY: Add MIPS EJTAG Fast Debug Channel TTY driver 2015-03-31 12:04:12 +02:00
metag_da.c tty/metag_da: Avoid module_init/module_exit in non-modular code 2015-06-16 14:12:31 -04:00
mips_ejtag_fdc.c MIPS: Remove "weak" from get_c0_fdc_int() declaration 2015-09-03 12:07:38 +02:00
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c tty: Convert use of __constant_htons to htons 2015-07-23 15:10:25 -07:00
n_hdlc.c pty: Fix input race when closing 2015-05-10 19:26:37 +02:00
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c Merge 4.2-rc4 into tty-next 2015-07-27 11:12:39 -07:00
nozomi.c drivers/tty/nozomi.c: rename CONFIG_MAGIC 2015-05-10 19:19:06 +02:00
pty.c drivers/tty: make pty.c slightly more explicitly non-modular 2015-10-04 17:27:56 +01:00
rocket_int.h
rocket.c TTY: fix misspelling of current function in string 2015-01-09 14:38:15 -08:00
rocket.h tty: rocket: fix comment of ROCKET_SPD_HI 2015-05-24 12:49:16 -07:00
synclink_gt.c tty: synclink_gt.c: move assignment out of if () block 2015-05-10 19:04:18 +02:00
synclink.c tty: synclink.c: move assignment out of if () block 2015-05-10 19:04:18 +02:00
synclinkmp.c tty: synclinkmp.c: move assignment out of if () block 2015-05-10 19:04:18 +02:00
sysrq.c drivers/tty: make sysrq.c slightly more explicitly non-modular 2015-10-04 17:27:56 +01:00
tty_audit.c
tty_buffer.c tty: buffers: Move hidden buffer index advance into outer loop 2015-07-23 18:23:56 -07:00
tty_io.c Avoid usb reset crashes by making tty_io cdevs truly dynamic 2015-08-03 15:24:43 -07:00
tty_ioctl.c tty: Replace inline #ifdef TTY_DEBUG_WAIT_UNTIL_SENT 2015-07-23 18:37:31 -07:00
tty_ldisc.c tty: core: Improve ldisc debug messages 2015-07-23 18:37:31 -07:00
tty_ldsem.c tty: tty_ldsem.c: move assignment out of if () block 2015-05-10 19:04:18 +02:00
tty_mutex.c tty: Make lock subclasses available for other tty locks 2015-02-02 10:11:27 -08:00
tty_port.c