tty: 8250: Add Brainboxes Oxford Semiconductor-based quirks
authorCameron Williams <cang1@live.co.uk>
Fri, 20 Oct 2023 16:03:17 +0000 (17:03 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 8 Nov 2023 10:56:24 +0000 (11:56 +0100)
commitf35ce68d39c619d55300c3e0de40f5c82a1b1bad
tree1cfbd1c74bf11fd386269ac8d80715efe4e2c012
parente74f2c73e88b5800d94197f4e6efba8dbae43e10
tty: 8250: Add Brainboxes Oxford Semiconductor-based quirks

commit e4876dacaca46a1b09f9b417480924ab12019a5b upstream.

Some of the later revisions of the Brainboxes PX cards are based
on the Oxford Semiconductor chipset. Due to the chip's unique setup
these cards need to be initialised.
Previously these were tested against a reference card with the same broken
baudrate on another PC, cancelling out the effect. With this patch they
work and can transfer/receive find against an FTDI-based device.

Add all of the cards which require this setup to the quirks table.
Thanks to Maciej W. Rozycki for clarification on this chip.

Fixes: ef5a03a26c87 ("tty: 8250: Add support for Brainboxes PX cards.")
Cc: stable@vger.kernel.org
Signed-off-by: Cameron Williams <cang1@live.co.uk>
Link: https://lore.kernel.org/r/DU0PR02MB7899D222A4AB2A4E8C57108FC4DBA@DU0PR02MB7899.eurprd02.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/8250/8250_pci.c