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| author | Brad Love <brad@nextdimension.cc> | 2018-12-19 20:07:01 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-12-20 14:52:01 +0300 |
| commit | 4bd46aa0353e022c2401a258e93b107880a66533 (patch) | |
| tree | 243069eaa9a88a5554c589832e364b0ab907ca26 /drivers/media/pci/cx23885/cx23885.h | |
| parent | bbb55cd708901dedbeeeb929c7012f35afea7882 (diff) | |
| download | linux-4bd46aa0353e022c2401a258e93b107880a66533.tar.xz | |
media: cx23885: only reset DMA on problematic CPUs
It is reported that commit 95f408bbc4e4 ("media: cx23885: Ryzen DMA
related RiSC engine stall fixes") caused regresssions with other CPUs.
Ensure that the quirk will be applied only for the CPUs that
are known to cause problems.
A module option is added for explicit control of the behaviour.
Fixes: 95f408bbc4e4 ("media: cx23885: Ryzen DMA related RiSC engine stall fixes")
Signed-off-by: Brad Love <brad@nextdimension.cc>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers/media/pci/cx23885/cx23885.h')
| -rw-r--r-- | drivers/media/pci/cx23885/cx23885.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/pci/cx23885/cx23885.h b/drivers/media/pci/cx23885/cx23885.h index d54c7ee1ab21..cf965efabe66 100644 --- a/drivers/media/pci/cx23885/cx23885.h +++ b/drivers/media/pci/cx23885/cx23885.h @@ -451,6 +451,8 @@ struct cx23885_dev { /* Analog raw audio */ struct cx23885_audio_dev *audio_dev; + /* Does the system require periodic DMA resets? */ + unsigned int need_dma_reset:1; }; static inline struct cx23885_dev *to_cx23885(struct v4l2_device *v4l2_dev) |