From mboxrd@z Thu Jan 1 00:00:00 1970 From: William Breathitt Gray Subject: Re: [PATCH v2 6/7] counter: ftm-quaddec: Documentation: Add specific counter sysfs documentation Date: Thu, 7 Mar 2019 20:42:16 +0900 Message-ID: <20190307114216.GB7851@icarus> References: <20190306111208.7454-1-patrick.havelange@essensium.com> <20190306111208.7454-7-patrick.havelange@essensium.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Content-Disposition: inline In-Reply-To: <20190306111208.7454-7-patrick.havelange@essensium.com> Sender: linux-kernel-owner@vger.kernel.org To: Patrick Havelange Cc: Rob Herring , Mark Rutland , Shawn Guo , Li Yang , Daniel Lezcano , Thomas Gleixner , Thierry Reding , Esben Haabendal , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pwm@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, Jonathan Cameron List-Id: devicetree@vger.kernel.org On Wed, Mar 06, 2019 at 12:12:07PM +0100, Patrick Havelange wrote: > This adds documentation for the specific prescaler entry. > > Signed-off-by: Patrick Havelange > --- > Changes v2 > - Add doc for prescaler entry > --- > .../ABI/testing/sysfs-bus-counter-ftm-quaddec | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > create mode 100644 Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec > > diff --git a/Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec b/Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec > new file mode 100644 > index 000000000000..2da629d6d485 > --- /dev/null > +++ b/Documentation/ABI/testing/sysfs-bus-counter-ftm-quaddec > @@ -0,0 +1,16 @@ > +What: /sys/bus/counter/devices/counterX/countY/prescaler_available > +KernelVersion: 5.1 > +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: 5.1 > +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 that is a 7-bit counter. This acts like a clock > + divider. > -- > 2.19.1 Hmm, prescalers seem common enough among counter devices to permit these attributes to be listed in the sysfs-bus-counter documentation file. However, I'd like to wait until we get another counter driver for a device with a prescaler before we make that move. From there, we'll have a better vantage point to determine a fitting standard prescaler attribute behavior. So for now, we'll keep these attributes documented here in the sysfs-bus-counter-ftm-quaddec file, until the time comes to broach the discussion again. William Breathitt Gray