From: William Breathitt Gray <vilhelm.gray@gmail.com>
To: Patrick Havelange <patrick.havelange@essensium.com>
Cc: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Shawn Guo <shawnguo@kernel.org>, Li Yang <leoyang.li@nxp.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Thierry Reding <thierry.reding@gmail.com>,
Esben Haabendal <esben@haabendal.dk>,
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 <jic23@kernel.org>
Subject: Re: [PATCH v2 6/7] counter: ftm-quaddec: Documentation: Add specific counter sysfs documentation
Date: Thu, 7 Mar 2019 20:42:16 +0900 [thread overview]
Message-ID: <20190307114216.GB7851@icarus> (raw)
In-Reply-To: <20190306111208.7454-7-patrick.havelange@essensium.com>
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 <patrick.havelange@essensium.com>
> ---
> 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
WARNING: multiple messages have this Message-ID (diff)
From: William Breathitt Gray <vilhelm.gray@gmail.com>
To: Patrick Havelange <patrick.havelange@essensium.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, Jonathan Cameron <jic23@kernel.org>,
linux-pwm@vger.kernel.org, linux-iio@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org,
Daniel Lezcano <daniel.lezcano@linaro.org>,
linux-kernel@vger.kernel.org, Li Yang <leoyang.li@nxp.com>,
Rob Herring <robh+dt@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
linux-arm-kernel@lists.infradead.org,
Thomas Gleixner <tglx@linutronix.de>,
Shawn Guo <shawnguo@kernel.org>,
Esben Haabendal <esben@haabendal.dk>
Subject: Re: [PATCH v2 6/7] counter: ftm-quaddec: Documentation: Add specific counter sysfs documentation
Date: Thu, 7 Mar 2019 20:42:16 +0900 [thread overview]
Message-ID: <20190307114216.GB7851@icarus> (raw)
In-Reply-To: <20190306111208.7454-7-patrick.havelange@essensium.com>
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 <patrick.havelange@essensium.com>
> ---
> 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
WARNING: multiple messages have this Message-ID (diff)
From: William Breathitt Gray <vilhelm.gray@gmail.com>
To: Patrick Havelange <patrick.havelange@essensium.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
devicetree@vger.kernel.org, Jonathan Cameron <jic23@kernel.org>,
linux-pwm@vger.kernel.org, linux-iio@vger.kernel.org,
linuxppc-dev@lists.ozlabs.org,
Daniel Lezcano <daniel.lezcano@linaro.org>,
linux-kernel@vger.kernel.org, Li Yang <leoyang.li@nxp.com>,
Rob Herring <robh+dt@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
linux-arm-kernel@lists.infradead.org,
Thomas Gleixner <tglx@linutronix.de>,
Shawn Guo <shawnguo@kernel.org>,
Esben Haabendal <esben@haabendal.dk>
Subject: Re: [PATCH v2 6/7] counter: ftm-quaddec: Documentation: Add specific counter sysfs documentation
Date: Thu, 7 Mar 2019 20:42:16 +0900 [thread overview]
Message-ID: <20190307114216.GB7851@icarus> (raw)
In-Reply-To: <20190306111208.7454-7-patrick.havelange@essensium.com>
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 <patrick.havelange@essensium.com>
> ---
> 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
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2019-03-07 11:41 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-06 11:12 [PATCH v2 0/7] FlexTimer Module Quadrature decoder counter Patrick Havelange
2019-03-06 11:12 ` Patrick Havelange
2019-03-06 11:12 ` [PATCH v2 1/7] include/fsl: add common FlexTimer #defines in a separate header Patrick Havelange
2019-03-06 11:12 ` Patrick Havelange
2019-03-06 11:12 ` [PATCH v2 2/7] drivers/pwm: pwm-fsl-ftm: use common header for FlexTimer #defines Patrick Havelange
2019-03-06 11:12 ` Patrick Havelange
2019-03-06 11:12 ` [PATCH v2 3/7] drivers/clocksource: timer-fsl-ftm: " Patrick Havelange
2019-03-06 11:12 ` Patrick Havelange
2019-04-11 16:40 ` Daniel Lezcano
2019-04-11 16:40 ` Daniel Lezcano
2019-03-06 11:12 ` [PATCH v2 4/7] dt-bindings: counter: ftm-quaddec Patrick Havelange
2019-03-06 11:12 ` Patrick Havelange
2019-03-12 19:09 ` Rob Herring
2019-03-12 19:09 ` Rob Herring
2019-03-12 19:09 ` Rob Herring
2019-03-16 14:21 ` Jonathan Cameron
2019-03-16 14:21 ` Jonathan Cameron
2019-03-16 14:21 ` Jonathan Cameron
2019-03-26 15:43 ` Arnout Vandecappelle
2019-03-26 15:43 ` Arnout Vandecappelle
2019-03-26 15:43 ` Arnout Vandecappelle
2019-03-26 16:06 ` Rob Herring
2019-03-26 16:06 ` Rob Herring
2019-03-26 16:06 ` Rob Herring
2019-03-06 11:12 ` [PATCH v2 5/7] counter: add FlexTimer Module Quadrature decoder counter driver Patrick Havelange
2019-03-06 11:12 ` Patrick Havelange
2019-03-07 11:32 ` William Breathitt Gray
2019-03-07 11:32 ` William Breathitt Gray
2019-03-07 11:32 ` William Breathitt Gray
2019-03-11 11:22 ` Patrick Havelange
2019-03-11 11:22 ` Patrick Havelange
2019-03-11 11:22 ` Patrick Havelange
2019-03-11 12:24 ` Jonathan Cameron
2019-03-11 12:24 ` Jonathan Cameron
2019-03-11 12:24 ` Jonathan Cameron
2019-03-11 12:24 ` Jonathan Cameron
2019-03-06 11:12 ` [PATCH v2 6/7] counter: ftm-quaddec: Documentation: Add specific counter sysfs documentation Patrick Havelange
2019-03-06 11:12 ` Patrick Havelange
2019-03-07 11:42 ` William Breathitt Gray [this message]
2019-03-07 11:42 ` William Breathitt Gray
2019-03-07 11:42 ` William Breathitt Gray
2019-03-11 12:36 ` Jonathan Cameron
2019-03-11 12:36 ` Jonathan Cameron
2019-03-11 12:36 ` Jonathan Cameron
2019-03-11 12:36 ` Jonathan Cameron
2019-03-06 11:12 ` [PATCH v2 7/7] LS1021A: dtsi: add ftm quad decoder entries Patrick Havelange
2019-03-06 11:12 ` Patrick Havelange
2019-03-07 12:03 ` [PATCH v2 0/7] FlexTimer Module Quadrature decoder counter William Breathitt Gray
2019-03-07 12:03 ` William Breathitt Gray
2019-03-07 12:03 ` William Breathitt Gray
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