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Date: Sat, 21 Jul 2018 19:01:34 +0100
From: Jonathan Cameron <jic23@...nel.org>
To: William Breathitt Gray <vilhelm.gray@...il.com>
Cc: gregkh@...uxfoundation.org, 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
Subject: Re: [PATCH v8 00/11] Introduce the Counter subsystem
On Sun, 15 Jul 2018 16:44:24 -0400
William Breathitt Gray <vilhelm.gray@...il.com> wrote:
> Changes in v8:
> - Add counter_enum.h file
> - Simplify COUNTER Kconfig option help text
> - Rename generic-counter.c to the more straightforward counter.c
> - Update copyright and license boilerplate (use recommended SPDX line)
> - Replace EXPORT_SYMBOL lines with respective EXPORT_SYMBOL_GPL lines
> - Replace scnprintf lines with sprintf since we're dealing with sysfs files
> - Add struct counter_attr_parm to simplify counter_attribute_create parameters
> - Rename *_comp_t suffixes to *_unit in order to avoid *_t suffix implications
> - List sysfs attribute values verbatim in sysfs documentation files
> - Reorganize 104-QUAD-8 driver license boilerplate update to dedicated patch
>
> This revision is functionally identical to the last; changes in this version
> were made to improve clarity, formatting and whitespace, and organization. I
> also took this opportunity to record some of the new ACKs from the last
> submission.
>
> The counter_enum.h file was created to hold the Generic Counter enum helper
> functions required by the Generic Counter enum macros (i.e. COUNTER_SIGNAL_ENUM,
> COUNTER_COUNT_ENUM, etc.). These helper functions are not intended to be used
> directly by driver authors, so I thought it best to keep them separated. Now the
> counter.h file contains only macro, functions, and data structures that are
> expected to possibly appear in a counter device driver.
>
> The counter_attribute_create function parameter list was large so I reorganized
> the parameters into the counter_attr_parm structure, which may be set and passed
> by reference to the counter_attribute_create function. Since the show and store
> function pointers match with the struct device_attribute show and store function
> pointers, I decided to keep them declared as there are here without a typedef --
> however, I can typedef them in a future revision if it will improve clarity to
> do so.
>
> Heads-up for Jonathan Cameron: you may pick-up the "iio: 104-quad-8: Update
> license boilerplate" patch independent of this series; it's the SPDX license
> boilerplate update for the 104-QUAD-8 IIO driver.
>
> Sincerely,
>
> William Breathitt Gray
>
This crossed with Andrew Morton's good points on this occupying
namespace that is rather too generically named. Hence I'll assume
we'll see a v9 with a solution to that (and personally ignore v8
to save time ;)
Ah I see you just replied to Andrew. Great!
Jonathan
> Benjamin Gaignard (2):
> counter: Add STM32 Timer quadrature encoder
> dt-bindings: counter: Document stm32 quadrature encoder
>
> Fabrice Gasnier (2):
> counter: stm32-lptimer: add counter device
> dt-bindings: counter: Adjust dt-bindings for STM32 lptimer move
>
> William Breathitt Gray (7):
> counter: Introduce the Generic Counter interface
> counter: Documentation: Add Generic Counter sysfs documentation
> docs: Add Generic Counter interface documentation
> iio: 104-quad-8: Update license boilerplate
> counter: 104-quad-8: Add Generic Counter interface support
> counter: 104-quad-8: Documentation: Add Generic Counter sysfs
> documentation
> iio: counter: Add deprecation markings for IIO Counter attributes
>
> Documentation/ABI/testing/sysfs-bus-counter | 230 +++
> .../ABI/testing/sysfs-bus-counter-104-quad-8 | 36 +
> Documentation/ABI/testing/sysfs-bus-iio | 8 +
> .../testing/sysfs-bus-iio-counter-104-quad-8 | 16 +
> .../{iio => }/counter/stm32-lptimer-cnt.txt | 0
> .../bindings/counter/stm32-timer-cnt.txt | 31 +
> .../devicetree/bindings/mfd/stm32-lptimer.txt | 2 +-
> .../devicetree/bindings/mfd/stm32-timers.txt | 7 +
> Documentation/driver-api/generic-counter.rst | 342 ++++
> Documentation/driver-api/index.rst | 1 +
> MAINTAINERS | 15 +-
> drivers/Kconfig | 2 +
> drivers/Makefile | 1 +
> drivers/{iio => }/counter/104-quad-8.c | 782 ++++++++-
> drivers/counter/Kconfig | 51 +
> drivers/{iio => }/counter/Makefile | 5 +-
> drivers/counter/counter.c | 1561 +++++++++++++++++
> drivers/{iio => }/counter/stm32-lptimer-cnt.c | 361 +++-
> drivers/counter/stm32-timer-cnt.c | 390 ++++
> drivers/iio/Kconfig | 1 -
> drivers/iio/Makefile | 1 -
> drivers/iio/counter/Kconfig | 34 -
> include/linux/counter.h | 505 ++++++
> include/linux/counter_enum.h | 45 +
> 24 files changed, 4341 insertions(+), 86 deletions(-)
> create mode 100644 Documentation/ABI/testing/sysfs-bus-counter
> create mode 100644 Documentation/ABI/testing/sysfs-bus-counter-104-quad-8
> rename Documentation/devicetree/bindings/{iio => }/counter/stm32-lptimer-cnt.txt (100%)
> create mode 100644 Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt
> create mode 100644 Documentation/driver-api/generic-counter.rst
> rename drivers/{iio => }/counter/104-quad-8.c (44%)
> create mode 100644 drivers/counter/Kconfig
> rename drivers/{iio => }/counter/Makefile (46%)
> create mode 100644 drivers/counter/counter.c
> rename drivers/{iio => }/counter/stm32-lptimer-cnt.c (48%)
> create mode 100644 drivers/counter/stm32-timer-cnt.c
> delete mode 100644 drivers/iio/counter/Kconfig
> create mode 100644 include/linux/counter.h
> create mode 100644 include/linux/counter_enum.h
>
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