Re: [PATCH 0/2] Add Updown Counter support for Milbeaut M10V SoC

[Jonathan Cameron]

On Tue, 26 Mar 2019 15:32:34 +0900
Shinji Kanematsu <kanematsu.shinji@xxxxxxxxxxxxx> wrote:

> This is a series of patch which adds Updown Counter support on
> Milbeaut M10V SoC.
> 
> The Updown Counter counts input pulse signal from external quadrature encoder.
> It also has input pulse signal counter function.
Hi Shinji,

Are you aware of the counter subsystem that has been proposed (and
as far as I am concerned is ready to be merged)?

https://patchwork.kernel.org/project/linux-iio/list/?series=147
(I think that's the latest version posted)..
William, perhaps you could give an update?

(bad luck, you are getting popular ;)

I'll take a quick review as it stands, as some issues may carry over.
I appreciate that it's always unfortunate to try to upstream stuff at the
same time as a new framework is being developed / upstreamed, but I don't
intend to take any additional counter drivers into IIO.  We just
end up having to maintain old interfaces in more and more drivers.

Thanks,

Jonathan

> 
> Shinji Kanematsu (2):
>   dt-bindings: iio: counter: Add Milbeaut Updown Counter
>   iio: counter: Add support for Milbeaut Updown Counter
> 
>  .../bindings/iio/counter/milbeaut-updown_cnt.txt   |  22 ++
>  drivers/iio/counter/Kconfig                        |  12 +
>  drivers/iio/counter/Makefile                       |   1 +
>  drivers/iio/counter/milbeaut-updown.h              |  38 ++
>  drivers/iio/counter/milbeaut-updown_cnt.c          | 385 +++++++++++++++++++++
>  5 files changed, 458 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/iio/counter/milbeaut-updown_cnt.txt
>  create mode 100644 drivers/iio/counter/milbeaut-updown.h
>  create mode 100644 drivers/iio/counter/milbeaut-updown_cnt.c
>