[PATCH 0/3] iio: Fix integration time units for iio-gts

From: Matti Vaittinen
Date: Wed Apr 12 2023 - 08:27:08 EST


The newly added iio-gts-helper (gain time scale helper) errorneously
reports available integration times as micro seconds. The same mistake
is in newly added BU27034 light sensor driver. Fix these by adding new
IIO_VAL type, IIO_VAL_INT_MICRO - which can be used for micro <unit>
values where the integer part is zero.

NOTE:
I did not have the time to test the gts-helpers with integration times
which are greater than 1 second. Currently there is no other in-tree users
besides the bu27034, which does always use integration times smaller
than 1 second. When greater than 1 second times are needed, this needs
to be revised. (Or, when the devm_* interface kunit test support gets
added). Right now this should be a quick fix to integration time
handling before the bug manifests itself in the user-space).

I am planning to test (and re-work if needed) the gts-helpers available
integration time list for > 1Sec times - but I most probably don't have
the time for that during this or next week. (Don't know about the
weekend though - but probably not.)

--

Matti Vaittinen (3):
iio: core: add IIO_VAL_INT_MICRO
iio: gts: fix units of available integration times
iio: bu27034: Fix integration time units

drivers/iio/industrialio-core.c | 4 ++++
drivers/iio/industrialio-gts-helper.c | 2 +-
drivers/iio/light/rohm-bu27034.c | 7 +++++--
include/linux/iio/types.h | 1 +
4 files changed, 11 insertions(+), 3 deletions(-)


base-commit: c86b0e73f0bebbb0245ef2bac4cf269d61ff828c
--
2.39.2


--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]

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