TTY/Serial driver fixes for 6.0-rc4

The following changes since commit 568035b01cfb107af8d2e4bd2fb9aea22cf5b868:

Linux 6.0-rc1 (2022-08-14 15:50:18 -0700)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tags/tty-6.0-rc4

for you to fetch changes up to 902e02ea9385373ce4b142576eef41c642703955:

tty: n_gsm: avoid call of sleeping functions from atomic context (2022-08-30 14:40:17 +0200)

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TTY/Serial driver fixes for 6.0-rc4

Here are some small tty/serial/vt driver fixes for 6.0-rc4 that resolve a number of reported issues:
- n_gsm fixups for previous changes that caused problems
- much-reported serdev crash fix that showed up in 6.0-rc1
- vt font selection bugfix
- kerneldoc build warning fixes
- other tiny serial core fixes

All of these have been in linux-next for a while with no reported problems.

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Fedor Pchelkin (2):
tty: n_gsm: replace kicktimer with delayed_work
tty: n_gsm: avoid call of sleeping functions from atomic context

Helge Deller (1):
vt: Clear selection before changing the font

Mauro Carvalho Chehab (1):
serial: document start_rx member at struct uart_ops

Mazin Al Haddad (1):

      tty: n_gsm: add sanity check for gsm->receive in gsm_receive_buf()

Sergiu Moga (1):
tty: serial: atmel: Preserve previous USART mode if RS485 disabled

Shenwei Wang (1):
serial: fsl_lpuart: RS485 RTS polariy is inverse

Sherry Sun (1):
tty: serial: lpuart: disable flow control while waiting for the transmit engine to complete

Tetsuo Handa (1):
tty: n_gsm: initialize more members at gsm_alloc_mux()

Vincent Whitchurch (1):
tty: Fix lookahead_buf crash with serdev

 drivers/tty/n_gsm.c               | 85 +++++++++++++++++----------------------
 drivers/tty/serial/atmel_serial.c |  4 +-
 drivers/tty/serial/fsl_lpuart.c   |  5 ++-
 drivers/tty/tty_buffer.c          | 14 ++++---
 drivers/tty/vt/vt.c               | 12 ++++--
 include/linux/serial_core.h       |  8 ++++
 6 files changed, 67 insertions(+), 61 deletions(-)