linux/drivers/tty
Alexey Pelykh 5fe2123647 OMAP/serial: Support 1Mbaud and similar baudrates that require Mode16 instead of Mode13
Original table in OMAP TRM named "UART Mode Baud Rates, Divisor
Values, and Error Rates" determines modes not for all common baud
rates. E.g. for 1000000 baud rate mode should be 16x, but according to
that table it's determined as 13x. According to current implementation
of mode divisor selection, after requesting 1000000 baudrate from
driver, later one will configure chip to use MODE13 divisor. Assuming
48Mhz as common UART clock speed, MODE13 divisor will effectively give
1230769 baudrate, what is quite far from desired 1000000 baudrate.
While with MODE16 divisor, chip will produce exact 1000000 baudrate.
In old driver that served UART devices (8250.c and serial_core.c) this
divisor could have been configured by user-space program, but in
omap_serial.c driver implementation this ability was not implemented
(afaik, by design) thus disallowing proper usage of MODE16-compatible
baudrates.

Signed-off-by: Alexey Pelykh <alexey.pelykh@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-17 17:20:09 -08:00
..
hvc TTY: hvsi: use for_each_compatible_node() macro 2013-01-15 23:00:43 -08:00
ipwireless TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
serial OMAP/serial: Support 1Mbaud and similar baudrates that require Mode16 instead of Mode13 2013-01-17 17:20:09 -08:00
vt TTY: switch tty_schedule_flip 2013-01-15 22:43:15 -08:00
amiserial.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
bfin_jtag_comm.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
cyclades.c cyclades: push down tty_port_tty_get 2013-01-15 22:43:15 -08:00
ehv_bytechan.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
isicom.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
Kconfig Merge branch 'for-upstream' of http://github.com/agraf/linux-2.6 into queue 2012-10-10 19:03:54 -03:00
Makefile
moxa.c TTY: switch tty_schedule_flip 2013-01-15 22:43:15 -08:00
moxa.h
mxser.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
mxser.h
n_gsm.c Revert "n_gsm.c: add tx_lock in gsm_send" 2013-01-15 22:48:15 -08:00
n_hdlc.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
n_r3964.c tty: localise the lock 2012-08-10 12:55:47 -07:00
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c tty: add missing newlines to WARN_RATELIMIT 2012-10-25 11:30:27 -07:00
nozomi.c TTY: nozomi, remove dead code 2013-01-15 22:43:16 -08:00
pty.c TTY: do not reset master's packet mode 2013-01-15 22:49:36 -08:00
rocket_int.h
rocket.c tty: add parenthesis to macro POLL_PERIOD in rocket.c 2013-01-15 22:49:36 -08:00
rocket.h
synclink_gt.c TTY: synclink, remove unneeded tests 2013-01-15 22:43:15 -08:00
synclink.c TTY: switch tty_flip_buffer_push 2013-01-15 22:30:15 -08:00
synclinkmp.c TTY: synclink, remove unneeded tests 2013-01-15 22:43:15 -08:00
sysrq.c mm, oom: ensure sysrq+f always passes valid zonelist 2012-11-15 17:13:48 -08:00
tty_audit.c TTY: audit, stop accessing tty->icount 2012-10-22 16:50:54 -07:00
tty_buffer.c TTY: switch tty_schedule_flip 2013-01-15 22:43:15 -08:00
tty_io.c tty: Fix comments that reference BKL, eventd, old paths 2013-01-15 21:57:44 -08:00
tty_ioctl.c tty: pty - Move TIOCPKT handling into pty.c 2012-10-25 12:07:18 -07:00
tty_ldisc.c tty: don't deadlock while flushing workqueue 2013-01-15 23:07:15 -08:00
tty_mutex.c tty: tty_mutex.c: Fixed coding style warning (using printk) 2012-10-24 11:34:51 -07:00
tty_port.c TTY: introduce tty_port_destroy 2012-11-15 17:20:58 -08:00