staging: comedi: ni_daq_700: add mux settling delay
authorIan Abbott <abbotti@mev.co.uk>
Mon, 19 May 2014 10:29:04 +0000 (11:29 +0100)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 11 Jun 2014 18:54:12 +0000 (11:54 -0700)
commit0cd6fa616912431665fb9d30bb96a1247b9c6304
treebcc919e1ff4c9e73b412b5d79c173240e1037e30
parent3bf5072cf916c0da7f789063c5bcc455b89ee929
staging: comedi: ni_daq_700: add mux settling delay

commit ffed54dced86723f352323f15789d9ad6bee25e1 upstream.

I got a patch from the original author, Fred Brooks, to add a small
settling delay after setting the AI channel multiplexor.  The lack of
delay resulted in unstable or scrambled data on faster processors.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reported-by: Fred Brooks <nsaspook@nsaspook.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/staging/comedi/drivers/ni_daq_700.c