kernel/drivers/iio/light/Makefile, branch linux-6.9.y

iio: light: driver for Lite-On ltr390

2023-12-11T19:16:35Z

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 Link: https://lore.kernel.org/r/20231208102211.413019-2-anshulusr@gmail.com Signed-off-by: Jonathan Cameron

iio: light: isl76682: Add ISL76682 driver

2023-12-06T17:19:52Z

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 Reviewed-by: Matti Vaittinen Signed-off-by: Marek Vasut Link: https://lore.kernel.org/r/20231127212726.77707-2-marex@denx.de Signed-off-by: Jonathan Cameron

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

2023-12-04T13:57:25Z

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 Link: https://lore.kernel.org/r/20231110-veml6075-v3-3-6ee46775b422@gmail.com Signed-off-by: Jonathan Cameron

iio: light: ROHM BU27008 color sensor

2023-05-23T20:20:17Z

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 Link: https://lore.kernel.org/r/2594162f0e44148cffb1fb05f1d6edfde6bd11bc.1683541225.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron

iio: light: Add support for TI OPT4001 light sensor

2023-05-13T16:56:06Z

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 Link: https://lore.kernel.org/r/20230323-add-opt4001-driver-v3-2-62e121dab294@axis.com Signed-off-by: Jonathan Cameron

iio: light: ROHM BU27034 Ambient Light Sensor

2023-04-10T11:26:35Z

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 Link: https://lore.kernel.org/r/2a7efb6f335da5526fbe34b95137c5e45db5c5d3.1680263956.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron

iio: light: tsl2563: Keep Makefile sorted by module name

2022-12-28T17:19:46Z

The Makefile is sorted by a module name, keep it that way. Signed-off-by: Andy Shevchenko Tested-by: Ferry Toth Link: https://lore.kernel.org/r/20221207190348.9347-11-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron

iio: light: Add support for ltrf216a sensor

2022-08-15T21:29:57Z

Add initial support for ltrf216a ambient light sensor. Datasheet: https://gitlab.collabora.com/shreeya/iio/-/blob/master/LTRF216A.pdf Reviewed-by: Andy Shevchenko Co-developed-by: Zhigang Shi Signed-off-by: Zhigang Shi Co-developed-by: Dmitry Osipenko Signed-off-by: Dmitry Osipenko Signed-off-by: Shreeya Patel Link: https://lore.kernel.org/r/20220725104050.491396-3-shreeya.patel@collabora.com Signed-off-by: Jonathan Cameron

iio: light: Added AMS tsl2591 driver implementation

2021-05-17T12:49:06Z

Driver implementation for AMS/TAOS tsl2591 ambient light sensor. This driver supports configuration via device tree and sysfs. Supported channels for raw infrared light intensity, raw combined light intensity and illuminance in lux. The driver additionally supports iio events on lower and upper thresholds. This is a very-high sensitivity light-to-digital converter that transforms light intensity into a digital signal. Datasheet: https://ams.com/tsl25911#tab/documents Signed-off-by: Joe Sandom Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20210421221330.17007-1-joe.g.sandom@gmail.com Signed-off-by: Jonathan Cameron

iio: light: as73211: New driver

2020-09-03T18:40:40Z

Support for AMS AS73211 JENCOLOR(R) Digital XYZ Sensor. This driver has no built-in trigger. In order for making triggered measurements, an external (software) trigger driver like iio-trig-hrtimer or iio-trig-sysfs is required. The sensor supports single and continuous measurement modes. The latter is not used by design as this would require tight timing synchronization between hardware and driver without much benefit. Datasheet: https://ams.com/documents/20143/36005/AS73211_DS000556_3-01.pdf Signed-off-by: Christian Eggers Reviewed-by: Andy Shevchenko Signed-off-by: Jonathan Cameron