Re: [PATCH 4/8] docs: counter: add unit timer sysfs attributes

[David Lechner]

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.