Pali Rohár 59819f0aaf serial: 8250: Fix reporting real baudrate value in c_ospeed field ... [ Upstream commit 32262e2e42 ] In most cases it is not possible to set exact baudrate value to hardware. So fix reporting real baudrate value which was set to hardware via c_ospeed termios field. It can be retrieved by ioctl(TCGETS2) from userspace. Real baudrate value is calculated from chosen hardware divisor and base clock. It is implemented in a new function serial8250_compute_baud_rate() which is inverse of serial8250_get_divisor() function. With this change is fixed also UART timeout value (it is updated via uart_update_timeout() function), which is calculated from the now fixed baudrate value too. Cc: stable@vger.kernel.org Signed-off-by: Pali Rohár <pali@kernel.org> Link: https://lore.kernel.org/r/20210927093704.19768-1-pali@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-09-23 14:16:55 +02:00
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hvc	tty: hvc: fix return value of __setup handler	2022-04-08 14:40:28 +02:00
ipwireless
serdev
serial	serial: 8250: Fix reporting real baudrate value in c_ospeed field	2022-09-23 14:16:55 +02:00
vt	vt: Clear selection before changing the font	2022-09-08 11:11:37 +02:00
amiserial.c
cyclades.c	tty: drivers/tty/, stop using tty_schedule_flip()	2022-07-29 17:19:27 +02:00
ehv_bytechan.c
goldfish.c	tty: drivers/tty/, stop using tty_schedule_flip()	2022-07-29 17:19:27 +02:00
isicom.c
Kconfig
Makefile
mips_ejtag_fdc.c
moxa.c	tty: drivers/tty/, stop using tty_schedule_flip()	2022-07-29 17:19:27 +02:00
moxa.h
mxser.c	mxser: fix xmit_buf leak in activate when LSR == 0xff	2022-04-08 14:40:23 +02:00
mxser.h
n_gsm.c	tty: n_gsm: avoid call of sleeping functions from atomic context	2022-09-15 11:32:02 +02:00
n_hdlc.c
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c	tty: n_tty: Restore EOF push handling behavior	2022-06-14 18:32:30 +02:00
nozomi.c
pty.c	tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()	2022-07-29 17:19:28 +02:00
rocket_int.h
rocket.c
rocket.h
synclink_gt.c	tty: synclink_gt: Fix null-pointer-dereference in slgt_clean()	2022-06-14 18:32:41 +02:00
synclink.c
synclinkmp.c
sysrq.c	sysrq: do not omit current cpu when showing backtrace of all active CPUs	2022-06-14 18:32:42 +02:00
tty_audit.c
tty_baudrate.c
tty_buffer.c	tty: use new tty_insert_flip_string_and_push_buffer() in pty_write()	2022-07-29 17:19:28 +02:00
tty_io.c
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c
tty_ldsem.c
tty_mutex.c
tty_port.c
ttynull.c
vcc.c