kernel-fxtec-pro1x/drivers/media
Hans Verkuil 37093b1ea6 V4L/DVB (6047): ivtv: Fix scatter/gather DMA timeouts
It turns out that the cx23415/6 DMA engine cannot do scatter/gather DMA
reliably. Every so often depending on the phase of the moon and your
hardware configuration the cx2341x DMA engine simply chokes on it and
you have to reboot to get it working again.

This change replaced the scatter/gather DMA by single transfers at a time,
where the driver is now responsible for DMA-ing each buffer.

UDMA is still done using scatter/gather DMA, that will be fixed soon.

Many thanks to Mark Bryars <mark.bryars@etvinteractive.com> for discovering
the link between scatter/gather and the DMA timeouts.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-09 22:05:32 -03:00
..
common V4L/DVB (5987): saa7146: clean-up irq processing 2007-10-09 22:04:44 -03:00
dvb V4L/DVB (6040): Add IR support for Nova-T Stick 2007-10-09 22:05:26 -03:00
radio V4L/DVB (5877): radio-gemtek-pci: remove unused structure member 2007-07-20 17:35:56 -03:00
video V4L/DVB (6047): ivtv: Fix scatter/gather DMA timeouts 2007-10-09 22:05:32 -03:00
Kconfig V4L/DVB (5791): Fix Kbuild for kbd-ir-i2c 2007-07-18 14:24:22 -03:00
Makefile V4L/DVB (5599): Use menuconfig objects II - DVB 2007-05-09 10:12:48 -03:00