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| author | Daniel Lee Kruse <daniel.lee.kruse@protonmail.com> | 2020-09-30 06:36:35 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2020-12-03 09:29:12 +0300 |
| commit | dbf0b3a7b719eb3f72cb53c2ce7d34a012a9c261 (patch) | |
| tree | e143d12a1b399356a04eb1fec5fab0eb00b3c481 /drivers/staging/media/sunxi/cedrus/cedrus_video.c | |
| parent | a109073bb9ec69ed9ec6eb541485e1dae63c13b4 (diff) | |
| download | linux-dbf0b3a7b719eb3f72cb53c2ce7d34a012a9c261.tar.xz | |
media: cx23885: add more quirks for reset DMA on some AMD IOMMU
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: Daniel Lee Kruse <daniel.lee.kruse@protonmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/staging/media/sunxi/cedrus/cedrus_video.c')
0 files changed, 0 insertions, 0 deletions