commit | 7877445b5c1bb10078ef72db65df1553f4cbd73e | [log] [tgz] |
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author | H Hartley Sweeten <hsweeten@visionengravers.com> | Tue Jan 13 10:16:25 2015 -0700 |
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | Sat Jan 17 14:31:29 2015 -0800 |
tree | 45f74a0cd2906413e7cb1aa10ee3d4f59af81260 | |
parent | f609c29dfb7a5729bfab9384fad45fbf12653c67 [diff] |
staging: comedi: dt282x: introduce dt282x_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>