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Subject[PATCH v8 00/11] Introduce the Counter subsystem
Date
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

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

--
2.18.0

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