linux.git/drivers/staging/iio, branch v5.1

staging: iio: ad7192: Fix ad7193 channel address

2019-03-09T16:55:06+00:00

This patch fixes the differential channels addresses for the ad7193.

Signed-off-by: Mircea Caprioru 
Cc: 
Signed-off-by: Jonathan Cameron

Staging: iio: meter: fixed typo

2019-03-09T16:55:05+00:00

This patch fixes an obvious typo, which will cause erroneously returning the Peak
Voltage instead of the Peak Current.

Signed-off-by: Leonard Pollak 
Cc: 
Acked-by: Michael Hennerich 
Signed-off-by: Jonathan Cameron

staging: iio: frequency: ad9833: Load clock using clock framework

2019-02-02T17:06:49+00:00

The clock frequency is loaded from device-tree using clock framework
instead of statically value. The change allow configuration of
the device via device-trees and better initialization sequence.
This is part of broader effort to add device-tree support to this driver
and take it out from staging.

Signed-off-by: Beniamin Bia 
Signed-off-by: Jonathan Cameron

staging: iio: frequency: ad9833: Get frequency value statically

2019-02-02T16:01:36+00:00

The values from platform data were replaced by statically values.
This was just a intermediate step of taking this driver out of staging and
load data from device tree.

Signed-off-by: Beniamin Bia 
Signed-off-by: Jonathan Cameron

staging: iio: cdc: ad7152: remove driver completely

2019-02-02T10:01:37+00:00

The AD7153 part has been obsoleted for some time. The AD7152 part will be
obsolete in the coming future.
Moving it out of staging doesn't make sense anymore. Which makes the driver
enter a limbo state.

This patch removes the driver completely, so that no effort is placed on
it, allowing people to focus on other parts that will still be around.

Signed-off-by: Alexandru Ardelean 
Signed-off-by: Jonathan Cameron

staging: iio: adt7316: fix the dac write calculation

2019-01-05T17:57:06+00:00

The lsb calculation is not masking the correct bits from the user input.
Subtract 1 from (1 << offset) to correctly set up the mask to be applied
to user input.

The lsb register stores its value starting at the bit 7 position.
adt7316_store_DAC() currently assumes the value is at the other end of the
register. Shift the lsb value before storing it in a new variable lsb_reg,
and write this variable to the lsb register.

Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jeremy Fertic 
Signed-off-by: Jonathan Cameron

staging: iio: adt7316: fix the dac read calculation

2019-01-05T17:55:23+00:00

The calculation of the current dac value is using the wrong bits of the
dac lsb register. Create two macros to shift the lsb register value into
lsb position, depending on whether the dac is 10 or 12 bit. Initialize
data to 0 so, with an 8 bit dac, the msb register value can be bitwise
ORed with data.

Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jeremy Fertic 
Signed-off-by: Jonathan Cameron

staging: iio: adt7316: fix handling of dac high resolution option

2019-01-05T17:52:17+00:00

The adt7316/7 and adt7516/7 have the option to output voltage proportional
to temperature on dac a and/or dac b. The default dac resolution in this
mode is 8 bits with the dac high resolution option enabling 10 bits. None
of these settings affect dacs c and d. Remove the "1 (12 bits)" output from
the show function since that is not an option for this mode. Return
"1 (10 bits)" if the device is one of the above mentioned chips and the dac
high resolution mode is enabled.

In the store function, the driver currently allows the user to write to the
ADT7316_DA_HIGH_RESOLUTION bit regardless of the device in use. Add a check
to return an error in the case of an adt7318 or adt7519. Remove the else
statement that clears the ADT7316_DA_HIGH_RESOLUTION bit. Instead, clear it
before conditionally enabling it, depending on user input. This matches the
typical pattern in the driver when an attribute is a boolean.

Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jeremy Fertic 
Signed-off-by: Jonathan Cameron

staging: iio: adt7316: fix dac_bits assignment

2019-01-05T17:48:39+00:00

The value of dac_bits is used in adt7316_show_DAC() and adt7316_store_DAC(),
and it should be either 8, 10, or 12 bits depending on the device in use. The
driver currently only assigns a value to dac_bits in
adt7316_store_da_high_resolution(). The purpose of the dac high resolution
option is not to change dac resolution for normal operation. Instead, it
is specific to an optional feature where one or two of the four dacs can
be set to output voltage proportional to temperature. If the user chooses
to set dac a and/or dac b to output voltage proportional to temperature,
the da_high_resolution attribute can optionally be enabled to use 10 bit
resolution rather than the default 8 bits. This is only available on the
10 and 12 bit dac devices. If the user attempts to read or write dacs a
or b under these settings, the driver's current behaviour is to return an
error. Dacs c and d continue to operate normally under these conditions.
With the above in mind, remove the dac_bits assignments from this function
since the value of dac_bits as used in the driver is not dependent on this
dac high resolution option.

Since the dac_bits assignments discussed above are currently the only ones
in this driver, the default value of dac_bits is 0. This results in incorrect
calculations when the dacs are read or written in adt7316_show_DAC() and
adt7316_store_DAC(). To correct this, assign a value to dac_bits in
adt7316_probe() to ensure correct operation as soon as the device is
registered and available to userspace.

Fixes: 35f6b6b86ede ("staging: iio: new ADT7316/7/8 and ADT7516/7/9 driver")
Signed-off-by: Jeremy Fertic 
Signed-off-by: Jonathan Cameron

staging: iio: adc: ad7606: Move out of staging

2019-01-05T16:10:59+00:00

Move ad7606 ADC driver out of staging and into the mainline.

Signed-off-by: Stefan Popa 
Signed-off-by: Jonathan Cameron