From: Jonathan Cameron <Jonathan.Cameron@huawei.com>
To: William Breathitt Gray <vilhelm.gray@gmail.com>
Cc: Jonathan Cameron <jic23@kernel.org>, <benjamin.gaignard@st.com>,
<fabrice.gasnier@st.com>, <linux-iio@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v6 9/9] iio: counter: Remove IIO counter subdirectory
Date: Tue, 22 May 2018 11:44:13 +0100 [thread overview]
Message-ID: <20180522114413.000006ec@huawei.com> (raw)
In-Reply-To: <20180521135828.GD5723@sophia>
On Mon, 21 May 2018 09:58:28 -0400
William Breathitt Gray <vilhelm.gray@gmail.com> wrote:
> On Sun, May 20, 2018 at 04:53:02PM +0100, Jonathan Cameron wrote:
> >On Wed, 16 May 2018 13:52:39 -0400
> >William Breathitt Gray <vilhelm.gray@gmail.com> wrote:
> >
> >> This patch removes the IIO counter subdirectory which is now superceded
> >> by the Counter subsystem. Deprecation warnings are added to the
> >> documentation of the relevant IIO counter sysfs attributes.
> >>
> >> Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com>
> >
> >Please drop the directory when it becomes empty rather than in a later
> >patch. IIRC there are some issues with empty Makefiles that will
> >make building inbetween tricky.
> >
> >For the deprecated markings.
> >
> >Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
>
> I'll have the directory removal occur with the removal of the last
> module then when the directory becomes empty.
>
> Regarding the deprecation markings, should I select a specific kernel
> version to date the removal of these attributes, or leave the future
> date open as this patch is now?
Leave it open. The ultimate test is whether it is actually enough of a burden
to make us want to clean up the deprecated interface.
This burden may be that it is a pain to implement something new, or to test
or to maintain the code (or something I haven't thought of).
If it's not it may stay there for ever.
Jonathan
>
> William Breathitt Gray
>
> >
> >> ---
> >> Documentation/ABI/testing/sysfs-bus-iio | 8 ++++++++
> >> .../ABI/testing/sysfs-bus-iio-counter-104-quad-8 | 16 ++++++++++++++++
> >> drivers/iio/Kconfig | 1 -
> >> drivers/iio/Makefile | 1 -
> >> drivers/iio/counter/Kconfig | 8 --------
> >> drivers/iio/counter/Makefile | 5 -----
> >> 6 files changed, 24 insertions(+), 15 deletions(-)
> >> delete mode 100644 drivers/iio/counter/Kconfig
> >> delete mode 100644 drivers/iio/counter/Makefile
> >>
> >> diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
> >> index 731146c3b138..6115d97b075e 100644
> >> --- a/Documentation/ABI/testing/sysfs-bus-iio
> >> +++ b/Documentation/ABI/testing/sysfs-bus-iio
> >> @@ -1637,6 +1637,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_raw
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Raw counter device counts from channel Y. For quadrature
> >> counters, multiplication by an available [Y]_scale results in
> >> the counts of a single quadrature signal phase from channel Y.
> >> @@ -1645,6 +1647,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_indexY_raw
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Raw counter device index value from channel Y. This attribute
> >> provides an absolute positional reference (e.g. a pulse once per
> >> revolution) which may be used to home positional systems as
> >> @@ -1654,6 +1658,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_count_count_direction_available
> >> KernelVersion: 4.12
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> A list of possible counting directions which are:
> >> - "up" : counter device is increasing.
> >> - "down": counter device is decreasing.
> >> @@ -1662,4 +1668,6 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_direction
> >> KernelVersion: 4.12
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Raw counter device counters direction for channel Y.
> >> diff --git a/Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8 b/Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8
> >> index 7fac2c268d9a..bac3d0d48b7b 100644
> >> --- a/Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8
> >> +++ b/Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8
> >> @@ -6,6 +6,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_index_synchronous_mode_available
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Discrete set of available values for the respective counter
> >> configuration are listed in this file.
> >>
> >> @@ -13,6 +15,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_count_mode
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Count mode for channel Y. Four count modes are available:
> >> normal, range limit, non-recycle, and modulo-n. The preset value
> >> for channel Y is used by the count mode where required.
> >> @@ -47,6 +51,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_noise_error
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Read-only attribute that indicates whether excessive noise is
> >> present at the channel Y count inputs in quadrature clock mode;
> >> irrelevant in non-quadrature clock mode.
> >> @@ -55,6 +61,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_preset
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> If the counter device supports preset registers, the preset
> >> count for channel Y is provided by this attribute.
> >>
> >> @@ -62,6 +70,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_quadrature_mode
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Configure channel Y counter for non-quadrature or quadrature
> >> clock mode. Selecting non-quadrature clock mode will disable
> >> synchronous load mode. In quadrature clock mode, the channel Y
> >> @@ -83,6 +93,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_countY_set_to_preset_on_index
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Whether to set channel Y counter with channel Y preset value
> >> when channel Y index input is active, or continuously count.
> >> Valid attribute values are boolean.
> >> @@ -91,6 +103,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_indexY_index_polarity
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Active level of channel Y index input; irrelevant in
> >> non-synchronous load mode.
> >>
> >> @@ -98,6 +112,8 @@ What: /sys/bus/iio/devices/iio:deviceX/in_indexY_synchronous_mode
> >> KernelVersion: 4.10
> >> Contact: linux-iio@vger.kernel.org
> >> Description:
> >> + This interface is deprecated; please use the Counter subsystem.
> >> +
> >> Configure channel Y counter for non-synchronous or synchronous
> >> load mode. Synchronous load mode cannot be selected in
> >> non-quadrature clock mode.
> >> diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig
> >> index d69e85a8bdc3..1152efad91a1 100644
> >> --- a/drivers/iio/Kconfig
> >> +++ b/drivers/iio/Kconfig
> >> @@ -74,7 +74,6 @@ source "drivers/iio/afe/Kconfig"
> >> source "drivers/iio/amplifiers/Kconfig"
> >> source "drivers/iio/chemical/Kconfig"
> >> source "drivers/iio/common/Kconfig"
> >> -source "drivers/iio/counter/Kconfig"
> >> source "drivers/iio/dac/Kconfig"
> >> source "drivers/iio/dummy/Kconfig"
> >> source "drivers/iio/frequency/Kconfig"
> >> diff --git a/drivers/iio/Makefile b/drivers/iio/Makefile
> >> index d8cba9c229c0..7bdd31f1b88f 100644
> >> --- a/drivers/iio/Makefile
> >> +++ b/drivers/iio/Makefile
> >> @@ -20,7 +20,6 @@ obj-y += amplifiers/
> >> obj-y += buffer/
> >> obj-y += chemical/
> >> obj-y += common/
> >> -obj-y += counter/
> >> obj-y += dac/
> >> obj-y += dummy/
> >> obj-y += gyro/
> >> diff --git a/drivers/iio/counter/Kconfig b/drivers/iio/counter/Kconfig
> >> deleted file mode 100644
> >> index 95a7a0df6cac..000000000000
> >> --- a/drivers/iio/counter/Kconfig
> >> +++ /dev/null
> >> @@ -1,8 +0,0 @@
> >> -#
> >> -# Counter devices
> >> -#
> >> -# When adding new entries keep the list in alphabetical order
> >> -
> >> -menu "Counters"
> >> -
> >> -endmenu
> >> diff --git a/drivers/iio/counter/Makefile b/drivers/iio/counter/Makefile
> >> deleted file mode 100644
> >> index 8fd3d954775a..000000000000
> >> --- a/drivers/iio/counter/Makefile
> >> +++ /dev/null
> >> @@ -1,5 +0,0 @@
> >> -#
> >> -# Makefile for IIO counter devices
> >> -#
> >> -
> >> -# When adding new entries keep the list in alphabetical order
> >
> --
> To unsubscribe from this list: send the line "unsubscribe linux-iio" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
prev parent reply other threads:[~2018-05-22 10:44 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-16 17:50 [PATCH v6 0/9] Introduce the Counter subsystem William Breathitt Gray
2018-05-16 17:50 ` [PATCH v6 1/9] counter: Introduce the Generic Counter interface William Breathitt Gray
2018-05-20 15:06 ` Jonathan Cameron
2018-05-21 13:06 ` William Breathitt Gray
2018-05-16 17:50 ` [PATCH v6 2/9] counter: Documentation: Add Generic Counter sysfs documentation William Breathitt Gray
2018-05-20 15:12 ` Jonathan Cameron
2018-05-16 17:51 ` [PATCH v6 3/9] docs: Add Generic Counter interface documentation William Breathitt Gray
2018-05-19 15:30 ` kbuild test robot
2018-05-20 15:31 ` Jonathan Cameron
2018-05-21 13:47 ` William Breathitt Gray
2018-05-22 17:08 ` Jonathan Cameron
2018-05-25 9:26 ` Fabrice Gasnier
2018-05-25 13:00 ` William Breathitt Gray
2018-05-16 17:51 ` [PATCH v6 4/9] counter: 104-quad-8: Add Generic Counter interface support William Breathitt Gray
2018-05-19 13:16 ` kbuild test robot
2018-05-19 13:55 ` William Breathitt Gray
2018-05-19 13:16 ` [RFC PATCH] counter: 104-quad-8: quad8_ops can be static kbuild test robot
2018-05-20 15:42 ` [PATCH v6 4/9] counter: 104-quad-8: Add Generic Counter interface support Jonathan Cameron
2018-05-21 13:51 ` William Breathitt Gray
2018-05-16 17:51 ` [PATCH v6 5/9] counter: 104-quad-8: Documentation: Add Generic Counter sysfs documentation William Breathitt Gray
2018-05-16 17:51 ` [PATCH v6 6/9] dt-bindings: counter: Document stm32 quadrature encoder William Breathitt Gray
2018-05-17 16:23 ` Rob Herring
2018-05-17 18:07 ` William Breathitt Gray
2018-05-17 18:59 ` Benjamin Gaignard
2018-05-18 16:28 ` Rob Herring
2018-05-20 15:47 ` Jonathan Cameron
2018-06-04 13:03 ` Benjamin Gaignard
2018-05-16 17:52 ` [PATCH v6 7/9] counter: Add STM32 Timer " William Breathitt Gray
2018-05-16 17:52 ` [PATCH v6 8/9] counter: stm32-lptimer: add counter device William Breathitt Gray
2018-05-18 16:34 ` Rob Herring
2018-05-16 17:52 ` [PATCH v6 9/9] iio: counter: Remove IIO counter subdirectory William Breathitt Gray
2018-05-20 15:53 ` Jonathan Cameron
2018-05-21 13:58 ` William Breathitt Gray
2018-05-22 10:44 ` Jonathan Cameron [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180522114413.000006ec@huawei.com \
--to=jonathan.cameron@huawei.com \
--cc=benjamin.gaignard@st.com \
--cc=devicetree@vger.kernel.org \
--cc=fabrice.gasnier@st.com \
--cc=jic23@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-iio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=vilhelm.gray@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).