| commit | bed8d5381c8cf34fd7511cd02bb7e312ec83addf | [log] [tgz] |
|---|---|---|
| author | H Hartley Sweeten <hsweeten@visionengravers.com> | Tue Jan 13 10:16:21 2015 -0700 |
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Sat Jan 17 14:31:29 2015 -0800 |
| tree | 1f8fd1b543f6c51c3ea4f62a4c4e0b76a9317863 | |
| parent | 9cf2765f5e39ffd600715a4b19e5fface154ba32 [diff] |
staging: comedi: pcl818: introduce pcl818_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>