linux-kernel - Re: [PATCH v10 00/18] Introduce the Counter subsystem

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Date:   Thu, 25 Apr 2019 21:36:24 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Jonathan Cameron <jic23@...nel.org>
Cc:     William Breathitt Gray <vilhelm.gray@...il.com>,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        fabrice.gasnier@...com, benjamin.gaignard@...com, knaack.h@....de,
        lars@...afoo.de, pmeerw@...erw.net, akpm@...ux-foundation.org,
        david@...hnology.com, robh+dt@...nel.org, mark.rutland@....com,
        shawnguo@...nel.org, leoyang.li@....com, daniel.lezcano@...aro.org,
        tglx@...utronix.de, thierry.reding@...il.com, esben@...bendal.dk,
        linux-pwm@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        patrick.havelange@...ensium.com, linux-api@...r.kernel.org
Subject: Re: [PATCH v10 00/18] Introduce the Counter subsystem

On Sun, Apr 07, 2019 at 03:25:50PM +0100, Jonathan Cameron wrote:
> On Tue,  2 Apr 2019 15:30:35 +0900
> William Breathitt Gray <vilhelm.gray@...il.com> wrote:
> 
> > Changes in v10:
> >   - Fix minor typographical errors in documentation
> >   - Merge the FlexTimer Module Quadrature decoder counter driver patches
> > 
> > This revision is functionally identical to the last; changes in this
> > version were made to fix minor typos in the documentation files and also
> > to pull in the new FTM quadrature decoder counter driver.
> > 
> > The Generic Counter API has been and is still in a feature freeze until
> > it is merged into the mainline. The following features will be
> > investigated after the merge: interrupt support for counter devices, and
> > a character device interface for low-latency applications.
> 
> Hi William / al,
> 
> So the question is how to move this forwards?  I'm happy with how it turned
> out and the existing drivers we had in IIO are a lot cleaner under
> the counter subsystem (other than the backwards compatibility for those that
> ever existed in IIO).  For those  not following closely the situation is:

I've now sucked this into my staging-testing branch and if 0-day is fine
with it, I'll merge it to staging-next in a day or so.  This way you can
build on it for any iio drivers that might be coming.

I do have reservations about that one sysfs file that is multi-line, and
I think it will come to bite you in the end over time, so I reserve the
right to say "I told you so" when that happens...

But, I don't have a better answer for it now, so don't really worry
about it :)

thanks,

greg k-h