diff options
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | 2015-01-13 10:16:34 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-17 14:31:30 -0800 |
| commit | 0156b06a6b3ee8c42c7c404a2a8a5921b74c69f5 (patch) | |
| tree | b7b20c075d363ffd84cc7d8f54dd989561169949 /drivers/staging/comedi/drivers/ni_at_a2150.c | |
| parent | 1ec64b74c9182e443e8ea26ea3d6df4cdda7e578 (diff) | |
staging: comedi: pcl812: introduce pcl812_isadma_disable()
According to Documentation/DMA-ISA-LPC.txt, the DMA lock needs to be
claimed before using any of the ISA DMA routines. Introduce a helper
function to disable the ISA DMA controller and add the necessary
locking calls.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/comedi/drivers/ni_at_a2150.c')
0 files changed, 0 insertions, 0 deletions