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staging: comedi: hwdrv_apci1500: introduce z8536_reset()
authorH Hartley Sweeten <hsweeten@visionengravers.com>
Wed, 3 Dec 2014 18:25:34 +0000 (11:25 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 10 Jan 2015 00:54:34 +0000 (16:54 -0800)
commit34373cd08810fcf7b55a89866081e09e91e43ace
tree41328839850cac33640dd6257cd850242db34d49tree | snapshot
parent8dbaadb93117c8aec77c5e97fb06c125c1e345cccommit | diff
staging: comedi: hwdrv_apci1500: introduce z8536_reset()

Introduce a helper function to reset the Z8536 CIO device.

Spinlock the initial reset of the Z8536 chip that puts it in State 0.
The z8536_{read,write} operations already do the spinlock to protect
the indirect register access.

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>
drivers/staging/comedi/drivers/addi-data/hwdrv_apci1500.c diff | blob | history
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