linux/drivers/tty
Dong Aisheng a6d7514b14 tty: serial: lpuart: add a more accurate baud rate calculation method
On new LPUART versions, the oversampling ratio for the receiver can be
changed from 4x (00011) to 32x (11111) which could help us get a more
accurate baud rate divider.

The idea is to use the best OSR (over-sampling rate) possible.
Note, OSR is typically hard-set to 16 in other LPUART instantiations.
Loop to find the best OSR value possible, one that generates minimum
baud diff iterate through the rest of the supported values of OSR.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Mingkai Hu <Mingkai.Hu@nxp.com>
Cc: Yangbo Lu <yangbo.lu@nxp.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-06-29 17:12:34 +02:00
..
hvc drivers/tty/hvc: fix spelling mistake: "missmanaged" -> "mismanaged" 2017-05-18 16:34:55 +02:00
ipwireless tty: ipwireless, cleanup TIOCGSERIAL 2016-06-25 08:56:30 -07:00
serdev Merge 4.12-rc3 into tty-next 2017-05-29 08:18:15 +02:00
serial tty: serial: lpuart: add a more accurate baud rate calculation method 2017-06-29 17:12:34 +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: ehv_bytechan: clean up init error handling 2017-05-18 16:43:55 +02:00
goldfish.c tty: goldfish: Fix a parameter of a call to free_irq 2017-01-12 11:51:25 +01:00
isicom.c tty: Replace ASYNC_INITIALIZED bit and update atomically 2016-04-30 09:26:55 -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 Annotate hardware config module parameters in drivers/tty/ 2017-04-20 12:02:32 +01:00
moxa.h
mxser.c Annotate hardware config module parameters in drivers/tty/ 2017-04-20 12:02:32 +01:00
mxser.h
n_gsm.c tty: n_gsm: do not send/receive in ldisc close path 2017-06-03 18:48:52 +09:00
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: add TIOCGPTPEER ioctl 2017-06-09 12:27:54 +02:00
rocket_int.h tty: rocket: Remove private close_wait 2016-01-28 14:13:44 -08:00
rocket.c tty: rocket: drop broken alt-speed support 2017-06-13 11:49:58 +02:00
rocket.h
synclink_gt.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
synclink.c Annotate hardware config module parameters in drivers/tty/ 2017-04-20 12:02:32 +01:00
synclinkmp.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
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_port: Add port client functions 2017-02-03 10:17:02 +01:00
tty_io.c tty: fix comment for __tty_alloc_driver() 2017-04-24 13:15:39 +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: handle the case where we cannot restore a line discipline 2017-06-03 18:43:46 +09:00
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