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counter: ftm-quaddec: Documentation: Add specific counter sysfs documentation

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This adds documentation for the specific prescaler entry.

Signed-off-by: Patrick Havelange <patrick.havelange@essensium.com>
Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Patrick Havelange 2019-04-02 15:30:52 +09:00 committed by Greg Kroah-Hartman
parent a3b9a99980
commit d8ea4ccfae
1 changed files with 16 additions and 0 deletions
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Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec Normal file
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What: /sys/bus/counter/devices/counterX/countY/prescaler_available
KernelVersion: 5.2
Contact: linux-iio@vger.kernel.org
Description:
Discrete set of available values for the respective Count Y
configuration are listed in this file. Values are delimited by
newline characters.
What: /sys/bus/counter/devices/counterX/countY/prescaler
KernelVersion: 5.2
Contact: linux-iio@vger.kernel.org
Description:
Configure the prescaler value associated with Count Y.
On the FlexTimer, the counter clock source passes through a
prescaler (i.e. a counter). This acts like a clock
divider.