[PATCH v2 0/1] braille: nbcon: Fix Braille console for NBCON API

[Petr Mladek]

Hi,

this is v2 patch which tries to fix Braille console driver to work
with uart 8250 serial console driver after is has been converted into
NBCON API.

Changes against v1:

  + Merged into one patch. It is hard to explain nbcon_braille*()
    API without the user.

  + Reworked the locking, see the commit message for more details.

  + Fixed the check of CON_NBCON_ATOMIC_UNSAFE [Sashiko]

IMPORTANT: The solution is not safe in PREEMPT_RT. But it is better
	then nothing. We could either solve it in v3. Or we could
	fix it later.

[v1] https://lore.kernel.org/r/20260922072558.98854-1-pmladek@xxxxxxxx

Petr Mladek (1):
  braille: nbcon: Allow to use a serial console with NBCON API as
    Braille console

 .../accessibility/braille/braille_console.c   | 43 ++++++++++++-
 drivers/tty/serial/8250/8250_port.c           |  5 +-
 include/linux/console.h                       |  8 +++
 kernel/printk/nbcon.c                         | 64 +++++++++++++++++++
 4 files changed, 117 insertions(+), 3 deletions(-)

-- 
2.55.0