Commit e0513902 authored by Daniel Lee Kruse's avatar Daniel Lee Kruse Committed by Zheng Zengkai
Browse files

media: cx23885: add more quirks for reset DMA on some AMD IOMMU



stable inclusion
from stable-5.10.23
commit c5188a98d2fbac2e00e257f1ac0cff093c54ae9b
bugzilla: 50838

--------------------------------

[ Upstream commit dbf0b3a7 ]

On AMD Family 15h (Models 30h-3fh), I/O Memory Management Unit
RiSC engine sometimes stalls, requiring a reset.

As result, MythTV and w-scan won't scan channels on the AMD Kaveri
APU with the Hauppauge QuadHD TV tuner card.

For the solution I added the Input/Output Memory Management Unit's PCI
Identity of 0x1423 to the broken_dev_id[] array, which is used by
a quirks logic meant to fix similar problems with other AMD
chipsets.

Signed-off-by: default avatarDaniel Lee Kruse <daniel.lee.kruse@protonmail.com>
Signed-off-by: default avatarHans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
Signed-off-by: default avatarChen Jun <chenjun102@huawei.com>
Acked-by: default avatar  Weilong Chen <chenweilong@huawei.com>
Signed-off-by: default avatarZheng Zengkai <zhengzengkai@huawei.com>
parent 253e9ce4
Loading
Loading
Loading
Loading
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please to comment