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| author | Steven Toth <stoth@kernellabs.com> | 2011-10-10 11:09:56 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-10-14 17:23:20 -0300 |
| commit | a461e0ad3d27b6342140566909a80db30d151a91 (patch) | |
| tree | 8111c174346ca48b16f3f45e635ce4302c9df7fe | |
| parent | 19696f09daeff897a672144be89a16b8df18c004 (diff) | |
| download | op-kernel-dev-a461e0ad3d27b6342140566909a80db30d151a91.zip op-kernel-dev-a461e0ad3d27b6342140566909a80db30d151a91.tar.gz | |
[media] cx23885: Stop the risc video fifo before reconfiguring it
Safety reasons. We shouldn't be trying to reconfigure a risc
processor instruction queue unless it's stopped.
Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-video.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index c91be47..e730b92 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -549,6 +549,9 @@ static int cx23885_start_video_dma(struct cx23885_dev *dev, { dprintk(1, "%s()\n", __func__); + /* Stop the dma/fifo before we tamper with it's risc programs */ + cx_clear(VID_A_DMA_CTL, 0x11); + /* setup fifo + format */ cx23885_sram_channel_setup(dev, &dev->sram_channels[SRAM_CH01], buf->bpl, buf->risc.dma); |
