On 10/27/21 1:46 AM, William Breathitt Gray wrote:
On Sat, Oct 16, 2021 at 08:33:39PM -0500, David Lechner wrote:
This documents new unit timer sysfs attributes for the counter
subsystem.
Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>
Hello David,
The unit timer is effectively a Count in its own right, so instead of
introducing new sysfs attributes you can just implement it as another
Count in the driver. Count 0 is "QPOSCNT", so set the name of this new
Count 1 as "Unit Timer" (or the datasheet naming if more apt) to
differentiate the Counts. You can then provide the "unit_timer_enable",
"unit_timer_period", and "unit_timer_time" functionalities as respective
Count 1 extensions ("enable" and "period") and Count 1 "count".
If you believe it appropriate, you can provide the raw timer ticks via
the Count 1 "count" while a nanoseconds interface is provided via a
Count 1 extension "timeout" (or something similar).
Sounds reasonable.
