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[v3,0/3] units: complement the set of Hz units

Message ID 20220801143811.14817-1-ddrokosov@sberdevices.ru (mailing list archive)
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Series units: complement the set of Hz units | expand

Message

Dmitry Rokosov Aug. 1, 2022, 2:37 p.m. UTC
During msa311 accel IIO driver development

https://lore.kernel.org/linux-iio/20220616104211.9257-1-ddrokosov@sberdevices.ru/

Andy requested to use proper units in the hz->ms calculation. Current
units.h header doesn't have milli, micro and nano HZ coefficients, so
some drivers (in the IIO subsystem) implement their own copies for that.

The current patchset resolves such a problem and intoduces general
MILLIHZ_PER_HZ, MICROHZ_PER_HZ and NANOHZ_PER_HZ definitions in the units.h,
and fixes all drivers which duplicate these units.

Changes:
* v2->v3:
    - changed UHZ_PER_HZ to MICROHZ_PER_HZ and NHZ_PER_HZ to
      NANOHZ_PER_HZ to save name consistency for all new HZ units

* v1->v2:
    - changed MHZ_PER_HZ to a different name as Andy suggested
      (suppose MILLIHZ_PER_HZ is good enough)

Dmitry Rokosov (3):
  units: complement the set of Hz units
  iio: accel: adxl345: use HZ macro from units.h
  iio: common: scmi_sensors: use HZ macro from units.h

 drivers/iio/accel/adxl345_core.c           | 7 ++++---
 drivers/iio/common/scmi_sensors/scmi_iio.c | 8 ++++----
 include/linux/units.h                      | 3 +++
 3 files changed, 11 insertions(+), 7 deletions(-)

Comments

Jonathan Cameron Aug. 28, 2022, 3:47 p.m. UTC | #1
On Mon, 1 Aug 2022 14:37:23 +0000
Dmitry Rokosov <DDRokosov@sberdevices.ru> wrote:

> During msa311 accel IIO driver development
> 
> https://lore.kernel.org/linux-iio/20220616104211.9257-1-ddrokosov@sberdevices.ru/
> 
> Andy requested to use proper units in the hz->ms calculation. Current
> units.h header doesn't have milli, micro and nano HZ coefficients, so
> some drivers (in the IIO subsystem) implement their own copies for that.
> 
> The current patchset resolves such a problem and intoduces general
> MILLIHZ_PER_HZ, MICROHZ_PER_HZ and NANOHZ_PER_HZ definitions in the units.h,
> and fixes all drivers which duplicate these units.

Ok, I'm just about convinced this is worth doing given the precedence
of similar cases. Applied to the togreg branch of iio.git and pushed
out as testing.

Thanks,

Jonathan
> 
> Changes:
> * v2->v3:
>     - changed UHZ_PER_HZ to MICROHZ_PER_HZ and NHZ_PER_HZ to
>       NANOHZ_PER_HZ to save name consistency for all new HZ units
> 
> * v1->v2:
>     - changed MHZ_PER_HZ to a different name as Andy suggested
>       (suppose MILLIHZ_PER_HZ is good enough)
> 
> Dmitry Rokosov (3):
>   units: complement the set of Hz units
>   iio: accel: adxl345: use HZ macro from units.h
>   iio: common: scmi_sensors: use HZ macro from units.h
> 
>  drivers/iio/accel/adxl345_core.c           | 7 ++++---
>  drivers/iio/common/scmi_sensors/scmi_iio.c | 8 ++++----
>  include/linux/units.h                      | 3 +++
>  3 files changed, 11 insertions(+), 7 deletions(-)
>