linux-toradex.git/drivers/iio/potentiometer, branch v5.17-rc5

iio:pot:mcp41010: Switch to generic firmware properties.

2021-12-12T17:12:47+00:00

In this case it was only of_device_get_match_data() + header update.
This enables use of other firmware types with no other changes, such
as ACPI via the PRP0001 route.

Signed-off-by: Jonathan Cameron 
Reviewed-by: Andy Shevchenko 
Cc: Chris Coffey

iio: potentiometer: max5487: Don't return an error in .remove()

2021-10-19T07:30:46+00:00

The only effect of returning an error in an spi .remove() callback is
that the spi core issues a generic warning message. Instead emit a more
specific error message and return 0 to not report the same issue twice.

Signed-off-by: Uwe Kleine-König 
Reviewed-by: Alexandru Ardelean 
Link: https://lore.kernel.org/r/20211013203223.2694577-15-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron

iio: potentiometer: Add driver support for AD5110

2021-08-15T14:38:16+00:00

The AD5110/AD5112/AD5114 provide a nonvolatile solution
for 128-/64-/32-position adjustment applications, offering
guaranteed low resistor tolerance errors of ±8% and up to
±6 mA current density.

Datasheet: https://www.analog.com/media/en/technical-documentation/data-sheets/AD5110_5112_5114.pdf
Signed-off-by: Mugilraj Dhavachelvan 
Reviewed-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210814175607.48399-3-dmugil2000@gmail.com
Signed-off-by: Jonathan Cameron

iio: potentiometer: max5481: convert probe to device-managed

2021-07-19T08:51:59+00:00

The change converts the probe function to use the
devm_iio_device_register() function.

Before calling that, we need to register an action to store the wiper back
to non-volatile memory when the device is de-registered.

We don't need to do this if the probe fails, because the only place where
the probe can fail now is devm_iio_device_register() and that shouldn't
create an IIO device (for userspace to poke at) if it fails.

Signed-off-by: Alexandru Ardelean 
Link: https://lore.kernel.org/r/20210624080641.9953-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron

iio: use getter/setter functions

2021-03-11T20:47:07+00:00

Use getter and setter functions, for a variety of data types.

Signed-off-by: Julia Lawall 
Link: https://lore.kernel.org/r/20210209211315.1261791-1-Julia.Lawall@inria.fr
Signed-off-by: Jonathan Cameron

iio: potentiometer: ad5272: Correct polarity of reset

2020-12-03T19:32:42+00:00

The driver should assert reset by setting the gpio high, and
then release it by setting it the gpio low. This allows the
device tree (or other hardware definition) to specify how the
gpio is configured.

For example as open drain or push-pull depending on the
connected hardware.

Signed-off-by: Phil Reid 
Link: https://lore.kernel.org/r/20201124050014.4453-1-preid@electromag.com.au
Signed-off-by: Jonathan Cameron

iio:potentiometer:mcp4531: Drop of_match_ptr and CONFIG_OF protections.

2020-09-21T17:41:27+00:00

These prevent use of this driver with ACPI via PRP0001 and are
an example of an anti pattern I'm trying to remove from IIO.
Hence drop them from this driver.

Also switch to device_get_match_data() from of_ variant and adjust
headers to reflect the change.

Signed-off-by: Jonathan Cameron 
Reviewed-by: Andy Shevchenko 
Cc: Peter Rosin 
Link: https://lore.kernel.org/r/20200910173242.621168-9-jic23@kernel.org

iio:potentiometer:mcp4131: Drop of_match_ptr and use generic fw interfaces.

2020-09-21T17:41:26+00:00

This change allows the use of the driver with ACPI via PRP0001
and remove an example of an anti pattern I'm trying to remove from IIO.
Also adjust includes to reflect this change.

Signed-off-by: Jonathan Cameron 
Reviewed-by: Andy Shevchenko 
Cc: Slawomir Stepien 
Link: https://lore.kernel.org/r/20200910173242.621168-8-jic23@kernel.org

iio:potentiometer:mcp4018: Drop of_match_ptr and CONFIG_OF protections.

2020-09-21T17:41:26+00:00

These prevent use of this driver with ACPI via PRP0001 and are
an example of an anti pattern I'm trying to remove from IIO.
Also use device_get_match_data() rather than devicetree only version.

Signed-off-by: Jonathan Cameron 
Reviewed-by: Andy Shevchenko 
Cc: Peter Rosin 
Link: https://lore.kernel.org/r/20200910173242.621168-7-jic23@kernel.org

iio:potentiometer:max5481: Drop invalid ACPI binding.

2020-09-21T17:41:26+00:00

Given that an ACPI binding must start with 3 or 4 capitals,
this cannot represent a valid binding.

It seems unlikely anything out there is using it.

Signed-off-by: Jonathan Cameron 
Reviewed-by: Andy Shevchenko 
Cc: Maury Anderson 
Cc: Matthew Weber 
Cc: Slawomir Stepien 
Link: https://lore.kernel.org/r/20200910173242.621168-6-jic23@kernel.org