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7b5c0c08f5
linux/drivers/tty
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Geert Uytterhoeven 7b5c0c08f5 serial: sh-sci: Use premultiplier to handle half sampling rate 
On SCIx variants different from HSCIF, the bit rate is equal to the
sampling clock rate divided by half the sampling rate. Currently this is
handled by dividing the sampling rate by two, which was OK as it was
always even.

Replace halving the sampling rate by premultiplying the base clock
frequency by 2, to accommodate odd sampling rates on SCIFA/SCIFB later.

Replace the shift value in the BRG divider calculation by a
premultiplication of the base clock frequency too, for consistency.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-02-06 22:54:55 -08:00
..
hvc TTY/Serial driver patches for 4.4-rc1 2015-11-04 21:35:12 -08:00
ipwireless
serial serial: sh-sci: Use premultiplier to handle half sampling rate 2016-02-06 22:54:55 -08:00
vt Merge 4.5-rc2 into tty-next 2016-02-01 12:53:14 -08:00
amiserial.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
bfin_jtag_comm.c
cyclades.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
ehv_bytechan.c
goldfish.c
isicom.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
Kconfig
Makefile
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 ttyFDC: Fix build problems due to use of module_{init,exit} 2015-10-17 21:29:21 -07:00
moxa.c tty: Remove unused SERIAL_DO_RESTART define 2015-12-13 19:59:48 -08:00
moxa.h
mxser.c tty: mxser: Remove ASYNC_CLOSING 2016-01-28 14:19:12 -08:00
mxser.h
n_gsm.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
n_hdlc.c
n_r3964.c tty: r3964: Replace/remove bogus tty lock use 2015-10-17 21:11:29 -07:00
n_tracerouter.c n_tracerouter: stop including <asm-generic/bug> 2015-10-15 00:21:10 +02:00
n_tracesink.c n_tracesink: stop including <asm-generic/bug> 2015-10-15 00:21:11 +02:00
n_tracesink.h
n_tty.c n_tty: Ignore all read data when closing 2016-01-28 14:13:44 -08:00
nozomi.c
pty.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
rocket_int.h tty: rocket: Remove private close_wait 2016-01-28 14:13:44 -08:00
rocket.c tty: Remove ASYNC_CLOSING 2016-01-28 14:19:12 -08:00
rocket.h
synclink_gt.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
synclink.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
synclinkmp.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
sysrq.c sysrq: Fix warning in sysrq generated crash. 2015-12-29 16:29:18 -08:00
tty_audit.c tty: audit: Poison tty_audit_buf while process exits 2016-01-27 16:41:04 -08:00
tty_buffer.c tty: Unify receive_buf() code paths 2016-01-28 14:13:44 -08:00
tty_io.c tty: Fix ioctl(FIOASYNC) on hungup file 2016-01-28 11:58:02 -08:00
tty_ioctl.c tty: Use termios c_*flag macros 2016-01-28 14:13:44 -08:00
tty_ldisc.c tty: Eliminate global symbol tty_ldisc_N_TTY 2016-01-27 15:13:28 -08:00
tty_ldsem.c tty: Deinline __ldsem_down_write_nested, save 128 bytes 2015-12-13 19:59:48 -08:00
tty_mutex.c tty: Remove __lockfunc annotation from tty lock functions 2016-01-27 14:28:20 -08:00
tty_port.c tty: Remove ASYNC_CLOSING 2016-01-28 14:19:12 -08:00