Commit 9be01d7d authored by Cameron Williams's avatar Cameron Williams Committed by Zheng Zengkai
Browse files

tty: 8250: Add Brainboxes Oxford Semiconductor-based quirks

stable inclusion
from stable-v6.6.1
commit f35ce68d39c619d55300c3e0de40f5c82a1b1bad
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8IKRU

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f35ce68d39c619d55300c3e0de40f5c82a1b1bad



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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: ef5a03a2 ("tty: 8250: Add support for Brainboxes PX cards.")
Cc: stable@vger.kernel.org
Signed-off-by: default avatarCameron Williams <cang1@live.co.uk>
Link: https://lore.kernel.org/r/DU0PR02MB7899D222A4AB2A4E8C57108FC4DBA@DU0PR02MB7899.eurprd02.prod.outlook.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent aff01ffc
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