diff mbox series

[v8,3/5] Documentation: ABI: sysfs-bus-counter: add cascade_counts_enable and external_input_phase_clock_select

Message ID 20221210102110.443043-4-biju.das.jz@bp.renesas.com (mailing list archive)
State Handled Elsewhere
Headers show
Series None | expand

Commit Message

Biju Das Dec. 10, 2022, 10:21 a.m. UTC
This commit adds cascade_counts_enable and external_input_phase_
clock_select items to counter ABI file.
(e.g. for Renesas MTU3 hardware used for phase counting).

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
---
v7->v8:
 * Replaced cascade_enable->cascade_counts_enable
 * Updated commit header and description
 * Added external_input_phase_clock_select_available entry for driver-
   specific enum attribute and created a new entry block for it.
 * Add a line stating cascade_counts_enable is a boolean attribute.
 * Added missing 'component_id' suffix.
v6->v7:
 * Replaced long_word_access_ctrl_mode->cascade_enable
 * Updated Kernel version
v5->v6:
 * No change
v5:
 * New patch
---
 Documentation/ABI/testing/sysfs-bus-counter | 25 +++++++++++++++++++++
 1 file changed, 25 insertions(+)

Comments

William Breathitt Gray Dec. 11, 2022, 3:34 p.m. UTC | #1
On Sat, Dec 10, 2022 at 10:21:08AM +0000, Biju Das wrote:
> +What:		/sys/bus/counter/devices/counterX/external_input_phase_clock_select
> +KernelVersion:	6.3
> +Contact:	linux-iio@vger.kernel.org
> +Description:
> +		This attribute selects the external clock pin for phase
> +		counting mode of counter X.

Hi Biju,

Remove the "This attribute" from the description, and capitalize the
word "counter": "Selects the external clock pin for phase counting mode
of Counter X."

> +What:		/sys/bus/counter/devices/counterX/external_input_phase_clock_select_available

At some point in the future I should combine the *_available blocks, but
right now they're separated between Count and Signal configurations.
This external_input_phase_clock_select_available is a device-level
configuration so it'll need its own block as well, such as the
following.

What:           /sys/bus/counter/devices/counterX/external_input_phase_clock_select_available
KernelVersion:  6.3
Contact:        linux-iio@vger.kernel.org
Description:
                Discrete set of available values for the respective device
                configuration are listed in this file.

> +What:		/sys/bus/counter/devices/counterX/cascade_counts_enable
> +KernelVersion:	6.3
> +Contact:	linux-iio@vger.kernel.org
> +Description:
> +		This attribute indicates the cascading of counts on
> +		counter X.

Similar to before, remove the "This attribute" from the description, and
capitalize "counts" and "counter": "Indicates the cascading of Counts on
Counter X."

William Breathitt Gray
William Breathitt Gray Dec. 11, 2022, 3:46 p.m. UTC | #2
On Sun, Dec 11, 2022 at 04:12:51PM +0000, Biju Das wrote:
> Hi William Breathitt Gray,
> 
> Thanks for the feedback.
> 
> > Subject: Re: [PATCH v8 3/5] Documentation: ABI: sysfs-bus-counter: add
> > cascade_counts_enable and external_input_phase_clock_select
> > 
> > On Sat, Dec 10, 2022 at 10:21:08AM +0000, Biju Das wrote:
> > > +What:
> > 	/sys/bus/counter/devices/counterX/external_input_phase_clock_select
> > > +KernelVersion:	6.3
> > > +Contact:	linux-iio@vger.kernel.org
> > > +Description:
> > > +		This attribute selects the external clock pin for phase
> > > +		counting mode of counter X.
> > 
> > Hi Biju,
> > 
> > Remove the "This attribute" from the description, and capitalize the word
> > "counter": "Selects the external clock pin for phase counting mode of
> > Counter X."
> > 
> > > +What:
> > 	/sys/bus/counter/devices/counterX/external_input_phase_clock_select_
> > available
> > 
> > At some point in the future I should combine the *_available blocks, but
> > right now they're separated between Count and Signal configurations.
> > This external_input_phase_clock_select_available is a device-level
> > configuration so it'll need its own block as well, such as the following.
> 
> Since it is device-level configuration, I will move the below 3 blocks
> to the top of file. I hope it is ok to you.

That's okay with me, so go ahead. I think at one point I was trying to
keep the attributes listed in alphabetical order, but I haven't really
minded lately as long as the information in this file is clear.

William Breathitt Gray

> 
> +What:          /sys/bus/counter/devices/counterX/cascade_counts_enable
> +KernelVersion: 6.3
> +Contact:       linux-iio@vger.kernel.org
> +Description:
> +               Indicates the cascading of Counts on Counter X.
> +
> +               Valid attribute values are boolean.
> +
> +What:          /sys/bus/counter/devices/counterX/external_input_phase_clock_select
> +KernelVersion: 6.3
> +Contact:       linux-iio@vger.kernel.org
> +Description:
> +               Selects the external clock pin for phase counting mode of
> +               Counter X.
> +
> +               MTCLKA-MTCLKB:
> +                       MTCLKA and MTCLKB pins are selected for the external
> +                       phase clock.
> +
> +               MTCLKC-MTCLKD:
> +                       MTCLKC and MTCLKD pins are selected for the external
> +                       phase clock.
> +
> +What:          /sys/bus/counter/devices/counterX/external_input_phase_clock_select_available
> +KernelVersion:  6.3
> +Contact:        linux-iio@vger.kernel.org
> +Description:
> +                Discrete set of available values for the respective device
> +                configuration are listed in this file.
> 
> Cheers,
> Biju
Biju Das Dec. 11, 2022, 4:12 p.m. UTC | #3
Hi William Breathitt Gray,

Thanks for the feedback.

> Subject: Re: [PATCH v8 3/5] Documentation: ABI: sysfs-bus-counter: add
> cascade_counts_enable and external_input_phase_clock_select
> 
> On Sat, Dec 10, 2022 at 10:21:08AM +0000, Biju Das wrote:
> > +What:
> 	/sys/bus/counter/devices/counterX/external_input_phase_clock_select
> > +KernelVersion:	6.3
> > +Contact:	linux-iio@vger.kernel.org
> > +Description:
> > +		This attribute selects the external clock pin for phase
> > +		counting mode of counter X.
> 
> Hi Biju,
> 
> Remove the "This attribute" from the description, and capitalize the word
> "counter": "Selects the external clock pin for phase counting mode of
> Counter X."
> 
> > +What:
> 	/sys/bus/counter/devices/counterX/external_input_phase_clock_select_
> available
> 
> At some point in the future I should combine the *_available blocks, but
> right now they're separated between Count and Signal configurations.
> This external_input_phase_clock_select_available is a device-level
> configuration so it'll need its own block as well, such as the following.

Since it is device-level configuration, I will move the below 3 blocks
to the top of file. I hope it is ok to you.

+What:          /sys/bus/counter/devices/counterX/cascade_counts_enable
+KernelVersion: 6.3
+Contact:       linux-iio@vger.kernel.org
+Description:
+               Indicates the cascading of Counts on Counter X.
+
+               Valid attribute values are boolean.
+
+What:          /sys/bus/counter/devices/counterX/external_input_phase_clock_select
+KernelVersion: 6.3
+Contact:       linux-iio@vger.kernel.org
+Description:
+               Selects the external clock pin for phase counting mode of
+               Counter X.
+
+               MTCLKA-MTCLKB:
+                       MTCLKA and MTCLKB pins are selected for the external
+                       phase clock.
+
+               MTCLKC-MTCLKD:
+                       MTCLKC and MTCLKD pins are selected for the external
+                       phase clock.
+
+What:          /sys/bus/counter/devices/counterX/external_input_phase_clock_select_available
+KernelVersion:  6.3
+Contact:        linux-iio@vger.kernel.org
+Description:
+                Discrete set of available values for the respective device
+                configuration are listed in this file.

Cheers,
Biju
diff mbox series

Patch

diff --git a/Documentation/ABI/testing/sysfs-bus-counter b/Documentation/ABI/testing/sysfs-bus-counter
index ff83320b4255..2e7a25010c84 100644
--- a/Documentation/ABI/testing/sysfs-bus-counter
+++ b/Documentation/ABI/testing/sysfs-bus-counter
@@ -60,6 +60,20 @@  Description:
 			counter does not freeze at the boundary points, but
 			counts continuously throughout.
 
+What:		/sys/bus/counter/devices/counterX/external_input_phase_clock_select
+KernelVersion:	6.3
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute selects the external clock pin for phase
+		counting mode of counter X.
+
+		MTCLKA-MTCLKB:
+			MTCLKA and MTCLKB pins are selected for the external phase clock.
+
+		MTCLKC-MTCLKD:
+			MTCLKC and MTCLKD pins are selected for the external phase clock.
+
+What:		/sys/bus/counter/devices/counterX/external_input_phase_clock_select_available
 What:		/sys/bus/counter/devices/counterX/countY/count_mode_available
 What:		/sys/bus/counter/devices/counterX/countY/error_noise_available
 What:		/sys/bus/counter/devices/counterX/countY/function_available
@@ -215,6 +229,17 @@  Contact:	linux-iio@vger.kernel.org
 Description:
 		This attribute indicates the number of overflows of count Y.
 
+What:		/sys/bus/counter/devices/counterX/cascade_counts_enable
+KernelVersion:	6.3
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute indicates the cascading of counts on
+		counter X.
+
+		Valid attribute values are boolean.
+
+What:		/sys/bus/counter/devices/counterX/cascade_counts_enable_component_id
+What:		/sys/bus/counter/devices/counterX/external_input_phase_clock_select_component_id
 What:		/sys/bus/counter/devices/counterX/countY/capture_component_id
 What:		/sys/bus/counter/devices/counterX/countY/ceiling_component_id
 What:		/sys/bus/counter/devices/counterX/countY/floor_component_id