linux.git/drivers/iio/temperature, branch v5.16

iio: temperature: Add MAX31865 RTD Support

2021-09-14T11:00:33+00:00

This patch adds support for Maxim MAX31865 RTD temperature
sensor support.

More information can be found in:
https://datasheets.maximintegrated.com/en/ds/MAX31865.pdf

Signed-off-by: Navin Sankar Velliangiri 
Link: https://lore.kernel.org/r/20210824050123.71289-1-navin@linumiz.com
Signed-off-by: Jonathan Cameron

iio: ltc2983: fail probe if no channels are given

2021-09-14T11:00:32+00:00

If there are no channels defined in the devicetree, there's no point in
probing the device. We were actually requesting a zero sized 'kmalloc'
array but since we were not touching the ZERO_SIZE_PTR afterwards,
nothing bad was actually happening. Hence this is not really a fix but
rather an improvement.

Reviewed-by: Alexandru Ardelean 
Signed-off-by: Nuno Sá 
Link: https://lore.kernel.org/r/20210825084149.11587-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron

iio: ltc2983: add support for optional reset gpio

2021-09-14T11:00:32+00:00

Check if an optional reset gpio is present and if so, make sure to reset
the device.

Signed-off-by: Nuno Sá 
Link: https://lore.kernel.org/r/20210825084149.11587-1-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron

iio: ltc2983: fix device probe

2021-08-15T15:58:37+00:00

There is no reason to assume that the IRQ rising edge (indicating that
the device start up phase is done) will happen after we request the IRQ.
If the device is already up by the time we request it, the call to
'wait_for_completion_timeout()' will timeout and we will fail the device
probe even though there's nothing wrong.

Fix it by just polling the status register until we get the indication that
the device is up and running. As a side effect of this fix, requesting the
IRQ is also moved to after the setup function.

Fixes: f110f3188e563 ("iio: temperature: Add support for LTC2983")
Reported-and-tested-by: Drew Fustini 
Reviewed-by: Drew Fustini 
Signed-off-by: Nuno Sá 
Reviewed-by: Andy Shevchenko 
Cc: 
Link: https://lore.kernel.org/r/20210811133220.190264-2-nuno.sa@analog.com
Signed-off-by: Jonathan Cameron

iio: temperature: tmp006: make sure the chip is powered up in probe

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

When the device is probed, there's no guarantee that the device is not in
power-down mode. This can happen if the driver is unregistered and
re-probed.

To make sure this doesn't happen, the value of the TMP006_CONFIG register
(which is read in the probe function and stored in the device's private
data) is being checked to see if the MOD bits have the correct value.

This is a fix for a somewhat-rare corner case. As it stands, this doesn't
look like a high priority to go into the Fixes route.

Signed-off-by: Alexandru Ardelean 
Link: https://lore.kernel.org/r/20210624081924.15897-2-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron

iio: temperature: tmp006: convert probe to device-managed

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

This change converts the driver to register via devm_iio_device_register().
For the tmp006_powerdown() hook, this uses a devm_add_action() hook to put
the device in powerdown mode when it's unregistered.

With these changes, the remove hook can be removed.

The i2c_set_clientdata() call is staying around as the private data is used
in the PM routines.

Signed-off-by: Alexandru Ardelean 
Link: https://lore.kernel.org/r/20210624081924.15897-1-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron

iio: hid-sensors: Update header includes

2021-06-16T13:53:13+00:00

General driver churn doesn't always include updates of header includes.
Manual review of the output of the include-what-you-use checker lead to the
following cleanup. Hopefuly this brings things back to a good state for the
hid-sensor drivers.

Signed-off-by: Jonathan Cameron 
Cc: Jiri Kosina 
Cc: Srinivas Pandruvada 
Acked-by: Srinivas Pandruvada 
Link: https://lore.kernel.org/r/20210608205510.4033887-1-jic23@kernel.org

iio: hid-sensors: lighten exported symbols by moving to IIO_HID namespace

2021-06-16T13:53:13+00:00

A namespace for exported symbols makes clear who is a provider
and who is a consumer of the certain resources. Besides that,
it doesn't pollute the common namespace.

Signed-off-by: Andy Shevchenko 
Acked-by: Alexandre Belloni 
Acked-by: Srinivas Pandruvada 
Link: https://lore.kernel.org/r/20210614162447.5392-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron

iio: temp: mlx90614: Handle failure in pm_runtime_resume_and_get()

2021-05-17T12:54:26+00:00

Converts from using pm_runtime_get_sync() with no error handling over
to pm_runtime_resume_and_get() which will ensure we don't end up
holding a reference.  Ensure this error return is then handled at
calls to mlx90614_power_get(). These are all direct returns.

Signed-off-by: Jonathan Cameron 
Reviewed-by: Mauro Carvalho Chehab 
Link: https://lore.kernel.org/r/20210509113354.660190-25-jic23@kernel.org

iio: temperature: add driver support for ti tmp117

2021-05-17T12:49:05+00:00

TMP117 is a Digital temperature sensor with integrated Non-Volatile memory.
Add support for tmp117 driver in iio subsystem.

Datasheet: https://www.ti.com/lit/gpn/tmp117
Signed-off-by: Puranjay Mohan 
Reviewed-by: Andy Shevchenko 
Reviewed-by: Lars-Peter Clausen 
Link: https://lore.kernel.org/r/20210407182147.77221-3-puranjay12@gmail.com
Signed-off-by: Jonathan Cameron