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3 Commits

Author SHA1 Message Date
William Breathitt Gray
954ab5cc5f counter: 104-quad-8: Support Differential Encoder Cable Status 
The ACCES 104-QUAD-8 series provides status information about the
connection state of the differential encoder cable inputs. This patch
implements support to expose such information from these devices.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2020-03-08 17:28:53 +00:00
William Breathitt Gray
de65d05563 counter: 104-quad-8: Support Filter Clock Prescaler 
The ACCES 104-QUAD-8 series does active filtering on the quadrature
input signals via the PC/104 bus clock (OSC 14.318 MHz). This patch
exposes the filter clock prescaler available on each channel.

Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2020-03-08 17:28:52 +00:00
William Breathitt Gray
7e798ef90c counter: 104-quad-8: Documentation: Add Generic Counter sysfs documentation 
This patch adds standard documentation for the Generic Counter interface
userspace sysfs attributes of the 104-QUAD-8 driver.

Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2019-04-25 21:33:39 +02:00