iio: light: Add support for AL3000a illuminance sensor

AL3000a is a simple I2C-based ambient light sensor, which is
closely related to AL3010 and AL3320a, but has significantly
different way of proc

iio: light: Add support for AL3000a illuminance sensor

AL3000a is a simple I2C-based ambient light sensor, which is
closely related to AL3010 and AL3320a, but has significantly
different way of processing data generated by the sensor.

Tested-by: Robert Eckelmann <[email protected]>
Tested-by: Antoni Aloy Torrens <[email protected]>
Signed-off-by: Svyatoslav Ryhel <[email protected]>
Reviewed-by: David Heidelberg <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: veml6030: fix scale to conform to ABI

The current scale is not ABI-compliant as it is just the sensor gain
instead of the value that acts as a multiplier to be applied to the raw
value (

iio: light: veml6030: fix scale to conform to ABI

The current scale is not ABI-compliant as it is just the sensor gain
instead of the value that acts as a multiplier to be applied to the raw
value (there is no offset).

Use the iio-gts helpers to obtain the proper scale values according to
the gain and integration time to match the resolution tables from the
datasheet and drop dedicated variables to store the current values of
the integration time, gain and resolution. When at it, use 'scale'
instead of 'gain' consistently for the get/set functions to avoid
misunderstandings.

Fixes: 7b779f573c48 ("iio: light: add driver for veml6030 ambient light sensor")
Acked-by: Matti Vaittinen <[email protected]>
Signed-off-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: Add APDS9160 ALS & Proximity sensor driver

APDS9160 is a combination of ALS and proximity sensors.

This patch add supports for:
- Intensity clear data and illuminance data
- Pro

iio: light: Add APDS9160 ALS & Proximity sensor driver

APDS9160 is a combination of ALS and proximity sensors.

This patch add supports for:
- Intensity clear data and illuminance data
- Proximity data
- Gain control, rate control
- Event thresholds

Signed-off-by: Mikael Gonella-Bolduc <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: veml3235: fix scale to conform to ABI

The current scale is not ABI-compliant as it is just the sensor gain
instead of the value that acts as a multiplier to be applied to the raw
value (

iio: light: veml3235: fix scale to conform to ABI

The current scale is not ABI-compliant as it is just the sensor gain
instead of the value that acts as a multiplier to be applied to the raw
value (there is no offset).

Use the iio-gts helpers to obtain the proper scale values according to
the gain and integration time to match the resolution tables from the
datasheet. When at it, use 'scale' instead of 'gain' consistently for
the get/set functions to avoid misunderstandings.

Fixes: c5a23f80c164 ("iio: light: add support for veml3235")
Reviewed-by: Matti Vaittinen <[email protected]>
Signed-off-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: Add support for TI OPT4060 color sensor

Add support for Texas Instruments OPT4060 RGBW Color sensor.

Signed-off-by: Per-Daniel Olsson <[email protected]>
Link: https://patch.msg

iio: light: Add support for TI OPT4060 color sensor

Add support for Texas Instruments OPT4060 RGBW Color sensor.

Signed-off-by: Per-Daniel Olsson <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: veml6030: add support for triggered buffer

All devices supported by this driver (currently veml6030, veml6035
and veml7700) have two 16-bit channels, and can profit for the same
configur

iio: light: veml6030: add support for triggered buffer

All devices supported by this driver (currently veml6030, veml6035
and veml7700) have two 16-bit channels, and can profit for the same
configuration to support data access via triggered buffers.

The measurements are stored in two 16-bit consecutive registers
(addresses 0x04 and 0x05) as little endian, unsigned data.

Signed-off-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: Drop BU27008 and BU27010

The ROHM BU27008 and BU27010 RGB sensors got cancelled. I was informed
they never reached mass production stage.

Keeping the drivers around is waste of maintena

iio: light: Drop BU27008 and BU27010

The ROHM BU27008 and BU27010 RGB sensors got cancelled. I was informed
they never reached mass production stage.

Keeping the drivers around is waste of maintenance resources. Drop the
drivers.

Signed-off-by: Matti Vaittinen <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://patch.msgid.link/f4d0aa31f29f160a06cba4856a034fa5636d3372.1732819203.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: add support for veml3235

The Vishay veml3235 is a low-power ambient light sensor with I2C
interface. It provides a minimum detectable intensity of
0.0021 lx/cnt, configurable integration

iio: light: add support for veml3235

The Vishay veml3235 is a low-power ambient light sensor with I2C
interface. It provides a minimum detectable intensity of
0.0021 lx/cnt, configurable integration time and gain, and an additional
white channel to distinguish between different light sources.

Signed-off-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: Remove "default n" entries

Linus already once did that for PDx86, don't repeat our mistakes.
TL;DR: 'n' *is* the default 'default'.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@lin

iio: light: Remove "default n" entries

Linus already once did that for PDx86, don't repeat our mistakes.
TL;DR: 'n' *is* the default 'default'.

Signed-off-by: Andy Shevchenko <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: opt3001: add support for TI's opt3002 light sensor

TI's opt3002 light sensor shares most properties with the opt3001
model, with the exception of supporting a wider spectrum range.

Add

iio: light: opt3001: add support for TI's opt3002 light sensor

TI's opt3002 light sensor shares most properties with the opt3001
model, with the exception of supporting a wider spectrum range.

Add support for TI's opt3002 by extending the TI opt3001 driver.

Datasheet: https://www.ti.com/product/OPT3002
Signed-off-by: Emil Gedenryd <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: bu27008: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BUFFER' a

iio: light: bu27008: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig

This driver makes use of triggered buffers, but does not select the
required modules.

Add the missing 'select IIO_BUFFER' and 'select IIO_TRIGGERED_BUFFER'.

Fixes: 41ff93d14f78 ("iio: light: ROHM BU27008 color sensor")
Signed-off-by: Javier Carrasco <[email protected]>
Acked-by: Matti Vaittinen <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: veml6030: add support for veml6035

The veml6035 is an ALS that shares most of its functionality with the
veml6030, which allows for some code recycling.

Some chip-specific properties di

iio: light: veml6030: add support for veml6035

The veml6035 is an ALS that shares most of its functionality with the
veml6030, which allows for some code recycling.

Some chip-specific properties differ and dedicated functions to get and
set the sensor gain as well as its initialization are required.

Signed-off-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: ROHM BH1745 colour sensor

Add support for BH1745, which is an I2C colour sensor with red, green,
blue and clear channels. It has a programmable active low interrupt
pin. Interrupt occurs

iio: light: ROHM BH1745 colour sensor

Add support for BH1745, which is an I2C colour sensor with red, green,
blue and clear channels. It has a programmable active low interrupt
pin. Interrupt occurs when the signal from the selected interrupt
source channel crosses set interrupt threshold high or low level.

Interrupt source for the device can be configured by enabling the
corresponding event. Interrupt latch is always enabled when setting
up interrupt.

Add myself as the maintainer for this driver in MAINTAINERS.

Signed-off-by: Mudit Sharma <[email protected]>
Reviewed-by: Ivan Orlov <[email protected]>
Reviewed-by: Javier Carrasco <[email protected]>
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: driver for Vishay VEML6040

Implements driver for the Vishay VEML6040 rgbw light sensor.

Included functionality: setting the integration time and reading the raw
values for the four chan

iio: light: driver for Vishay VEML6040

Implements driver for the Vishay VEML6040 rgbw light sensor.

Included functionality: setting the integration time and reading the raw
values for the four channels

Not yet implemented: setting the measurements to 'Manual Force Mode' (Auto
measurements off, and adding a measurement trigger)

Datasheet: https://www.vishay.com/docs/84276/veml6040.pdf
Signed-off-by: Arthur Becker <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: Add support for APDS9306 Light Sensor

Driver support for Avago (Broadcom) APDS9306 Ambient Light Sensor.
It has two channels - ALS and CLEAR. The ALS (Ambient Light Sensor)
channel appro

iio: light: Add support for APDS9306 Light Sensor

Driver support for Avago (Broadcom) APDS9306 Ambient Light Sensor.
It has two channels - ALS and CLEAR. The ALS (Ambient Light Sensor)
channel approximates the response of the human-eye providing direct
read out where the output count is proportional to ambient light levels.
It is internally temperature compensated and rejects 50Hz and 60Hz flicker
caused by artificial light sources. Hardware interrupt configuration is
optional. It is a low power device with 20 bit resolution and has
configurable adaptive interrupt mode and interrupt persistence mode.
The device also features inbuilt hardware gain, multiple integration time
selection options and sampling frequency selection options.

This driver also uses the IIO GTS (Gain Time Scale) Helpers Namespace for
Scales, Gains and Integration time implementation.

Signed-off-by: Subhajit Ghosh <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: as73211: add support for as7331

The AMS AS7331 is a UV light sensor with three channels: UVA, UVB and
UVC (also known as deep UV and referenced as DUV in the iio core).
Its internal stru

iio: light: as73211: add support for as7331

The AMS AS7331 is a UV light sensor with three channels: UVA, UVB and
UVC (also known as deep UV and referenced as DUV in the iio core).
Its internal structure and forming blocks are practically identical to
the ones the AS73211 contains: API, internal DAC, I2C interface and
registers, measurement modes, number of channels and pinout.

The only difference between them is the photodiodes used to acquire
light, which means that only some modifications are required to add
support for the AS7331 in the existing driver.

The temperature channel is identical for both devices and only the
channel modifiers of the IIO_INTENSITY channels need to account for the
device type.

The scale values have been obtained from the chapter "7.5 Transfer
Function" of the official datasheet[1] for the configuration chosen as
basis (Nclk = 1024 and GAIN = 1). Those values keep the units from the
datasheet (nW/cm^2), as opposed to the units used for the AS73211
(nW/m^2).

Add a new device-specific data structure to account for the device
differences: channel types and scale of LSB per channel.

[1] https://ams.com/documents/20143/9106314/AS7331_DS001047_4-00.pdf

Tested-by: Christian Eggers <[email protected]>
Signed-off-by: Javier Carrasco <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: driver for Lite-On ltr390

Implements driver for the Ambient/UV Light sensor LTR390.
The driver exposes two ways of getting sensor readings:
1. Raw UV Counts directly from the sensor

iio: light: driver for Lite-On ltr390

Implements driver for the Ambient/UV Light sensor LTR390.
The driver exposes two ways of getting sensor readings:
1. Raw UV Counts directly from the sensor
2. The computed UV Index value with a percision of 2 decimal places

[NOTE] Ambient light sensing has not been implemented yet.

Driver tested on RPi Zero 2W

Datasheet: https://optoelectronics.liteon.com/upload/download/DS86-2015-0004/LTR-390UV_Final_%20DS_V1%201.pdf
Signed-off-by: Anshul Dalal <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: isl76682: Add ISL76682 driver

The ISL76682 is very basic ALS which only supports ALS or IR mode
in four ranges, 1k/4k/16k/64k LUX. There is no IRQ support or any
other fancy functionalit

iio: light: isl76682: Add ISL76682 driver

The ISL76682 is very basic ALS which only supports ALS or IR mode
in four ranges, 1k/4k/16k/64k LUX. There is no IRQ support or any
other fancy functionality.

Reviewed-by: Andy Shevchenko <[email protected]>
Reviewed-by: Matti Vaittinen <[email protected]>
Signed-off-by: Marek Vasut <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: add VEML6075 UVA and UVB light sensor driver

The Vishay VEMl6075 is a low power, 16-bit resolution UVA and UVB
light sensor with I2C interface and noise compensation (visible and
infrarr

iio: light: add VEML6075 UVA and UVB light sensor driver

The Vishay VEMl6075 is a low power, 16-bit resolution UVA and UVB
light sensor with I2C interface and noise compensation (visible and
infrarred).

Every UV channel generates an output signal measured in counts per
integration period, where the integration time is configurable.

This driver adds support for both UV channels and the ultraviolet
index (UVI) inferred from them according to the device application note
with open-air (no teflon) coefficients.

Signed-off-by: Javier Carrasco <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: ROHM BU27008 color sensor

The ROHM BU27008 is a sensor with 5 photodiodes (red, green, blue, clear
and IR) with four configurable channels. Red and green being always
available and two o

iio: light: ROHM BU27008 color sensor

The ROHM BU27008 is a sensor with 5 photodiodes (red, green, blue, clear
and IR) with four configurable channels. Red and green being always
available and two out of the rest three (blue, clear, IR) can be
selected to be simultaneously measured. Typical application is adjusting
LCD backlight of TVs, mobile phones and tablet PCs.

Add initial support for the ROHM BU27008 color sensor.
- raw_read() of RGB and clear channels
- triggered buffer w/ DRDY interrtupt

Signed-off-by: Matti Vaittinen <[email protected]>
Link: https://lore.kernel.org/r/2594162f0e44148cffb1fb05f1d6edfde6bd11bc.1683541225.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: Add support for TI OPT4001 light sensor

This driver uses the continuous mode of the chip and integration
time can be configured through sysfs.
The constants for calculating lux value dif

iio: light: Add support for TI OPT4001 light sensor

This driver uses the continuous mode of the chip and integration
time can be configured through sysfs.
The constants for calculating lux value differs between packaging
so it uses different compatible string for the two versions
"ti,opt4001-picostar" and "ti,opt4001-sot-5x3" since the device id
is the same.

Datasheet: https://www.ti.com/lit/gpn/opt4001
Signed-off-by: Stefan Windfeldt-Prytz <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: ROHM BU27034 Ambient Light Sensor

ROHM BU27034 is an ambient light sensor with 3 channels and 3 photo diodes
capable of detecting a very wide range of illuminance. Typical application
is

iio: light: ROHM BU27034 Ambient Light Sensor

ROHM BU27034 is an ambient light sensor with 3 channels and 3 photo diodes
capable of detecting a very wide range of illuminance. Typical application
is adjusting LCD and backlight power of TVs and mobile phones.

Add initial support for the ROHM BU27034 ambient light sensor.

NOTE:
- Driver exposes 4 channels. One IIO_LIGHT channel providing the
calculated lux values based on measured data from diodes #0 and
#1. In addition, 3 IIO_INTENSITY channels are emitting the raw
register data from all diodes for more intense user-space
computations.
- Sensor has GAIN values that can be adjusted from 1x to 4096x.
- Sensor has adjustible measurement times of 5, 55, 100, 200 and
400 mS. Driver does not support 5 mS which has special
limitations.
- Driver exposes standard 'scale' adjustment which is
implemented by:
1) Trying to adjust only the GAIN
2) If GAIN adjustment alone can't provide requested
scale, adjusting both the time and the gain is
attempted.
- Driver exposes writable INT_TIME property that can be used
for adjusting the measurement time. Time adjustment will also
cause the driver to try to adjust the GAIN so that the
overall scale is kept as close to the original as possible.

Signed-off-by: Matti Vaittinen <[email protected]>
Link: https://lore.kernel.org/r/2a7efb6f335da5526fbe34b95137c5e45db5c5d3.1680263956.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: rpr0521: add missing Kconfig dependencies

Fix an implicit declaration of function error for rpr0521 under some configs

When CONFIG_RPR0521 is enabled without CONFIG_IIO_TRIGGERED_BUFFER

iio: light: rpr0521: add missing Kconfig dependencies

Fix an implicit declaration of function error for rpr0521 under some configs

When CONFIG_RPR0521 is enabled without CONFIG_IIO_TRIGGERED_BUFFER,
the build results in "implicit declaration of function" errors, e.g.,
drivers/iio/light/rpr0521.c:434:3: error: implicit declaration of function
'iio_trigger_poll_chained' [-Werror=implicit-function-declaration]
434 | iio_trigger_poll_chained(data->drdy_trigger0);
| ^~~~~~~~~~~~~~~~~~~~~~~~

This fix adds select dependencies to RPR0521's configuration declaration.

Fixes: e12ffd241c00 ("iio: light: rpr0521 triggered buffer")
Signed-off-by: Paul Gazzillo <[email protected]>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216678
Reviewed-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/20221110214729.ls5ixav5kxpeftk7@device
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: Add support for ltrf216a sensor

Add initial support for ltrf216a ambient light sensor.

Datasheet: https://gitlab.collabora.com/shreeya/iio/-/blob/master/LTRF216A.pdf
Reviewed-by: Andy S

iio: light: Add support for ltrf216a sensor

Add initial support for ltrf216a ambient light sensor.

Datasheet: https://gitlab.collabora.com/shreeya/iio/-/blob/master/LTRF216A.pdf
Reviewed-by: Andy Shevchenko <[email protected]>
Co-developed-by: Zhigang Shi <[email protected]>
Signed-off-by: Zhigang Shi <[email protected]>
Co-developed-by: Dmitry Osipenko <[email protected]>
Signed-off-by: Dmitry Osipenko <[email protected]>
Signed-off-by: Shreeya Patel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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iio: light: cm3605: Drop dependency on OF

Nothing in this driver depends on OF firmware so drop the dependency
to remove the false impression such a dependency exists.

Signed-off-by: Andy Shevchenk

iio: light: cm3605: Drop dependency on OF

Nothing in this driver depends on OF firmware so drop the dependency
to remove the false impression such a dependency exists.

Signed-off-by: Andy Shevchenko <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Cameron <[email protected]>

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