linux-stable.git/drivers/iio/temperature, branch linux-6.5.y

iio: temperature: tmp006: Add OF device matching support

2023-05-28T19:22:03+00:00

Adds an of_device_id table entry to the driver, enabling
device matching through device tree. With this update, the driver
can now match devices using both the i2c_device_id entry and the
newly added of_device_id table.

Signed-off-by: Anup Sharma 
Reviewed-by: Conor Dooley 
Link: https://lore.kernel.org/r/72746bdfd8f74171943e41759b891c7af40627ec.1684579603.git.anupnewsmail@gmail.com
Signed-off-by: Jonathan Cameron

iio: mlx90614: Add MLX90615 support

2023-05-23T20:20:17+00:00

Add support for MLX90615 Infra Red Thermometer, which seems to be
the predecesor of MLX90614 . There are significant differences in
the register layout compared to MLX90614, but the functionality
of the device is virtually identical.

The following differences have been identified:
- RAM/EEPROM/SLEEP access opcodes are different
- RAM/EEPROM registers are at different offsets
- EEPROM emissivity and configuration registers are at different offsets
- EEPROM configuration register bits are shuffled around
- EEPROM emissivity settings are 14 bit on MLX90615 , 16 bit on MLX90614
- MLX90615 can only ever support one sensor, MLX90614 could support two
- FIR filter is set to fixed settings on MLX90615
- IIR filter coefficients are different

This patch fills in the MLX90615 specific description and quirk handling.

The IIR filter coefficients were provided by Melexis as follows:
0b0000 - Forbidden value
0b0001 - 100% - settling time = refresh rate = 205ms (around 5Hz)
0b0010 - 50% - settling time = 2050ms (around 0.5Hz)
0b0011 - 33% - settling time = 36900ms (around 0.3Hz)
0b0100 - 25% - settling time = 5125ms (around 0.2Hz)
0b0101 - 20% - settling time = 6355ms (around 0.15Hz)
0b0110 - 17% - settling time = 7790ms (around 0.13Hz)
0b0111 - 14% - settling time = 9225ms (around 0.1Hz)

Signed-off-by: Marek Vasut 
Acked-by: Crt Mori 
Link: https://lore.kernel.org/r/20230510102251.10118-6-marex@denx.de
Signed-off-by: Jonathan Cameron

iio: mlx90614: Factor our register IO and constants into model specific descriptor

2023-05-23T20:20:17+00:00

Factor out all the differences between MLX90614 and other similar chips
into a structure which describes the chip and allows abstracting out the
differences from the driver code. No functional change.

This patch moves all the RAM and EEPROM IO opcodes into the descriptor
structure and combines them, instead of combining the opcode and offset
in macros.

Acked-by: Crt Mori 
Tested-by: Crt Mori 
Signed-off-by: Marek Vasut 
Link: https://lore.kernel.org/r/20230510102251.10118-5-marex@denx.de
Signed-off-by: Jonathan Cameron

iio: mlx90614: Drop MLX90614_CONST_EMISSIVITY_RESOLUTION

2023-05-23T20:20:16+00:00

The MLX90614_CONST_EMISSIVITY_RESOLUTION can be calculated from
MLX90614_CONST_RAW_EMISSIVITY_MAX, perform the calculation inline
and drio the MLX90614_CONST_EMISSIVITY_RESOLUTION.

Signed-off-by: Marek Vasut 
Acked-by: Crt Mori 
Link: https://lore.kernel.org/r/20230510102251.10118-4-marex@denx.de
Signed-off-by: Jonathan Cameron

iio: mlx90614: Drop unused register macros

2023-05-23T20:20:16+00:00

To simplify addition of support for new parts, drop unused register macros.
No functional change.

Acked-by: Crt Mori 
Signed-off-by: Marek Vasut 
Link: https://lore.kernel.org/r/20230510102251.10118-3-marex@denx.de
Signed-off-by: Jonathan Cameron

iio: mlx90614: Sort headers

2023-05-23T20:20:16+00:00

Sort the headers alphabetically. No functional change.

Acked-by: Crt Mori 
Signed-off-by: Marek Vasut 
Link: https://lore.kernel.org/r/20230510102251.10118-2-marex@denx.de
Signed-off-by: Jonathan Cameron

iio: Switch i2c drivers back to use .probe()

2023-05-21T17:54:53+00:00

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.

Signed-off-by: Uwe Kleine-König 
Link: https://lore.kernel.org/r/20230515205048.19561-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Jonathan Cameron

iio: temperature: tmp117: cosmetic alignment cleanup

2023-03-11T12:18:29+00:00

Align the code correctly if possible and align the channel bit mask to
make it easier to read.

Signed-off-by: Marco Felsch 
Link: https://lore.kernel.org/r/20230228090518.529811-6-m.felsch@pengutronix.de
Signed-off-by: Jonathan Cameron

iio: temperature: tmp117: add TI TMP116 support

2023-03-11T12:18:29+00:00

The TMP116 is the predecessor of the TMP117. The TMP116 don't support
custom offset calibration data, instead this register is used as generic
EEPROM storage as well.

Signed-off-by: Marco Felsch 
Link: https://lore.kernel.org/r/20230228090518.529811-5-m.felsch@pengutronix.de
Signed-off-by: Jonathan Cameron

iio: temperature: tmp117: improve fallback capabilities

2023-03-11T12:18:29+00:00

Don't error if the device-id found don't match the device-id for the
TMP117 sensor since other TMPxxx might be compatible to the TMP117. The
fallback mechanism tries to gather the required information from the
of_device_id or from the i2c_client information.

The commit also prepares the driver for adding new devices more easily
by making use of switch-case at the relevant parts.

Signed-off-by: Marco Felsch 
Link: https://lore.kernel.org/r/20230228090518.529811-3-m.felsch@pengutronix.de
Signed-off-by: Jonathan Cameron