v4.19.13 snapshot.
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
new file mode 100644
index 0000000..d66ea75
--- /dev/null
+++ b/drivers/iio/light/Kconfig
@@ -0,0 +1,493 @@
+
+#
+# Light sensors
+#
+# When adding new entries keep the list in alphabetical order
+
+menu "Light sensors"
+
+config ACPI_ALS
+ tristate "ACPI Ambient Light Sensor"
+ depends on ACPI
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ select IIO_KFIFO_BUF
+ help
+ Say Y here if you want to build a driver for the ACPI0008
+ Ambient Light Sensor.
+
+ To compile this driver as a module, choose M here: the module will
+ be called acpi-als.
+
+config ADJD_S311
+ tristate "ADJD-S311-CR999 digital color sensor"
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ depends on I2C
+ help
+ If you say yes here you get support for the Avago ADJD-S311-CR999
+ digital color light sensor.
+
+ This driver can also be built as a module. If so, the module
+ will be called adjd_s311.
+
+config AL3320A
+ tristate "AL3320A ambient light sensor"
+ depends on I2C
+ help
+ Say Y here if you want to build a driver for the Dyna Image AL3320A
+ ambient light sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called al3320a.
+
+config APDS9300
+ tristate "APDS9300 ambient light sensor"
+ depends on I2C
+ help
+ Say Y here if you want to build a driver for the Avago APDS9300
+ ambient light sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called apds9300.
+
+config APDS9960
+ tristate "Avago APDS9960 gesture/RGB/ALS/proximity sensor"
+ select REGMAP_I2C
+ select IIO_BUFFER
+ select IIO_KFIFO_BUF
+ depends on I2C
+ help
+ Say Y here to build I2C interface support for the Avago
+ APDS9960 gesture/RGB/ALS/proximity sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called apds9960
+
+config BH1750
+ tristate "ROHM BH1750 ambient light sensor"
+ depends on I2C
+ help
+ Say Y here to build support for the ROHM BH1710, BH1715, BH1721,
+ BH1750, BH1751 ambient light sensors.
+
+ To compile this driver as a module, choose M here: the module will
+ be called bh1750.
+
+config BH1780
+ tristate "ROHM BH1780 ambient light sensor"
+ depends on I2C
+ help
+ Say Y here to build support for the ROHM BH1780GLI ambient
+ light sensor.
+
+ To compile this driver as a module, choose M here: the module will
+ be called bh1780.
+
+config CM32181
+ depends on I2C
+ tristate "CM32181 driver"
+ help
+ Say Y here if you use cm32181.
+ This option enables ambient light sensor using
+ Capella cm32181 device driver.
+
+ To compile this driver as a module, choose M here:
+ the module will be called cm32181.
+
+config CM3232
+ depends on I2C
+ tristate "CM3232 ambient light sensor"
+ help
+ Say Y here if you use cm3232.
+ This option enables ambient light sensor using
+ Capella Microsystems cm3232 device driver.
+
+ To compile this driver as a module, choose M here:
+ the module will be called cm3232.
+
+config CM3323
+ depends on I2C
+ tristate "Capella CM3323 color light sensor"
+ help
+ Say Y here if you want to build a driver for Capella CM3323
+ color sensor.
+
+ To compile this driver as a module, choose M here: the module will
+ be called cm3323.
+
+config CM3605
+ tristate "Capella CM3605 ambient light and proximity sensor"
+ depends on OF
+ help
+ Say Y here if you want to build a driver for Capella CM3605
+ ambient light and short range proximity sensor.
+
+ To compile this driver as a module, choose M here: the module will
+ be called cm3605.
+
+config CM36651
+ depends on I2C
+ tristate "CM36651 driver"
+ help
+ Say Y here if you use cm36651.
+ This option enables proximity & RGB sensor using
+ Capella cm36651 device driver.
+
+ To compile this driver as a module, choose M here:
+ the module will be called cm36651.
+
+config IIO_CROS_EC_LIGHT_PROX
+ tristate "ChromeOS EC Light and Proximity Sensors"
+ depends on IIO_CROS_EC_SENSORS_CORE
+ help
+ Say Y here if you use the light and proximity sensors
+ presented by the ChromeOS EC Sensor hub.
+
+ To compile this driver as a module, choose M here:
+ the module will be called cros_ec_light_prox.
+
+config GP2AP020A00F
+ tristate "Sharp GP2AP020A00F Proximity/ALS sensor"
+ depends on I2C
+ select REGMAP_I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ select IRQ_WORK
+ help
+ Say Y here if you have a Sharp GP2AP020A00F proximity/ALS combo-chip
+ hooked to an I2C bus.
+
+ To compile this driver as a module, choose M here: the
+ module will be called gp2ap020a00f.
+
+config SENSORS_ISL29018
+ tristate "Intersil 29018 light and proximity sensor"
+ depends on I2C
+ select REGMAP_I2C
+ default n
+ help
+ If you say yes here you get support for ambient light sensing and
+ proximity infrared sensing from Intersil ISL29018.
+ This driver will provide the measurements of ambient light intensity
+ in lux, proximity infrared sensing and normal infrared sensing.
+ Data from sensor is accessible via sysfs.
+
+config SENSORS_ISL29028
+ tristate "Intersil ISL29028 Concurrent Light and Proximity Sensor"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Provides driver for the Intersil's ISL29028 device.
+ This driver supports the sysfs interface to get the ALS, IR intensity,
+ Proximity value via iio. The ISL29028 provides the concurrent sensing
+ of ambient light and proximity.
+
+config ISL29125
+ tristate "Intersil ISL29125 digital color light sensor"
+ depends on I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ Say Y here if you want to build a driver for the Intersil ISL29125
+ RGB light sensor for I2C.
+
+ To compile this driver as a module, choose M here: the module will be
+ called isl29125.
+
+config HID_SENSOR_ALS
+ depends on HID_SENSOR_HUB
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ select HID_SENSOR_IIO_COMMON
+ select HID_SENSOR_IIO_TRIGGER
+ tristate "HID ALS"
+ help
+ Say yes here to build support for the HID SENSOR
+ Ambient light sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hid-sensor-als.
+
+config HID_SENSOR_PROX
+ depends on HID_SENSOR_HUB
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ select HID_SENSOR_IIO_COMMON
+ select HID_SENSOR_IIO_TRIGGER
+ tristate "HID PROX"
+ help
+ Say yes here to build support for the HID SENSOR
+ Proximity sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hid-sensor-prox.
+
+config JSA1212
+ tristate "JSA1212 ALS and proximity sensor driver"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say Y here if you want to build a IIO driver for JSA1212
+ proximity & ALS sensor device.
+
+ To compile this driver as a module, choose M here:
+ the module will be called jsa1212.
+
+config RPR0521
+ tristate "ROHM RPR0521 ALS and proximity sensor driver"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say Y here if you want to build support for ROHM's RPR0521
+ ambient light and proximity sensor device.
+
+ To compile this driver as a module, choose M here:
+ the module will be called rpr0521.
+
+config SENSORS_LM3533
+ tristate "LM3533 ambient light sensor"
+ depends on MFD_LM3533
+ help
+ If you say yes here you get support for the ambient light sensor
+ interface on National Semiconductor / TI LM3533 Lighting Power
+ chips.
+
+ The sensor interface can be used to control the LEDs and backlights
+ of the chip through defining five light zones and three sets of
+ corresponding output-current values.
+
+ The driver provides raw and mean adc readings along with the current
+ light zone through sysfs. A threshold event can be generated on zone
+ changes. The ALS-control output values can be set per zone for the
+ three current output channels.
+
+config LTR501
+ tristate "LTR-501ALS-01 light sensor"
+ depends on I2C
+ select REGMAP_I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ If you say yes here you get support for the Lite-On LTR-501ALS-01
+ ambient light and proximity sensor. This driver also supports LTR-559
+ ALS/PS or LTR-301 ALS sensors.
+
+ This driver can also be built as a module. If so, the module
+ will be called ltr501.
+
+config LV0104CS
+ tristate "LV0104CS Ambient Light Sensor"
+ depends on I2C
+ help
+ Say Y here if you want to build support for the On Semiconductor
+ LV0104CS ambient light sensor.
+
+ To compile this driver as a module, choose M here:
+ the module will be called lv0104cs.
+
+config MAX44000
+ tristate "MAX44000 Ambient and Infrared Proximity Sensor"
+ depends on I2C
+ select REGMAP_I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ Say Y here if you want to build support for Maxim Integrated's
+ MAX44000 ambient and infrared proximity sensor device.
+
+ To compile this driver as a module, choose M here:
+ the module will be called max44000.
+
+config OPT3001
+ tristate "Texas Instruments OPT3001 Light Sensor"
+ depends on I2C
+ help
+ If you say Y or M here, you get support for Texas Instruments
+ OPT3001 Ambient Light Sensor.
+
+ If built as a dynamically linked module, it will be called
+ opt3001.
+
+config PA12203001
+ tristate "TXC PA12203001 light and proximity sensor"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ If you say yes here you get support for the TXC PA12203001
+ ambient light and proximity sensor.
+
+ This driver can also be built as a module. If so, the module
+ will be called pa12203001.
+
+config SI1133
+ tristate "SI1133 UV Index Sensor and Ambient Light Sensor"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say Y here if you want to build a driver for the Silicon Labs SI1133
+ UV Index Sensor and Ambient Light Sensor chip.
+
+ To compile this driver as a module, choose M here: the module will be
+ called si1133.
+
+config SI1145
+ tristate "SI1132 and SI1141/2/3/5/6/7 combined ALS, UV index and proximity sensor"
+ depends on I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ Say Y here if you want to build a driver for the Silicon Labs SI1132 or
+ SI1141/2/3/5/6/7 combined ambient light, UV index and proximity sensor
+ chips.
+
+ To compile this driver as a module, choose M here: the module will be
+ called si1145.
+
+config STK3310
+ tristate "STK3310 ALS and proximity sensor"
+ depends on I2C
+ select REGMAP_I2C
+ help
+ Say yes here to get support for the Sensortek STK3310 ambient light
+ and proximity sensor. The STK3311 model is also supported by this
+ driver.
+
+ Choosing M will build the driver as a module. If so, the module
+ will be called stk3310.
+
+config ST_UVIS25
+ tristate "STMicroelectronics UVIS25 sensor driver"
+ depends on (I2C || SPI)
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ select ST_UVIS25_I2C if (I2C)
+ select ST_UVIS25_SPI if (SPI_MASTER)
+ help
+ Say yes here to build support for STMicroelectronics UVIS25
+ uv sensor
+
+ To compile this driver as a module, choose M here: the module
+ will be called st_uvis25.
+
+config ST_UVIS25_I2C
+ tristate
+ depends on ST_UVIS25
+ select REGMAP_I2C
+
+config ST_UVIS25_SPI
+ tristate
+ depends on ST_UVIS25
+ select REGMAP_SPI
+
+config TCS3414
+ tristate "TAOS TCS3414 digital color sensor"
+ depends on I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ If you say yes here you get support for the TAOS TCS3414
+ family of digital color sensors.
+
+ This driver can also be built as a module. If so, the module
+ will be called tcs3414.
+
+config TCS3472
+ tristate "TAOS TCS3472 color light-to-digital converter"
+ depends on I2C
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
+ help
+ If you say yes here you get support for the TAOS TCS3472
+ family of color light-to-digital converters with IR filter.
+
+ This driver can also be built as a module. If so, the module
+ will be called tcs3472.
+
+config SENSORS_TSL2563
+ tristate "TAOS TSL2560, TSL2561, TSL2562 and TSL2563 ambient light sensors"
+ depends on I2C
+ help
+ If you say yes here you get support for the Taos TSL2560,
+ TSL2561, TSL2562 and TSL2563 ambient light sensors.
+
+ This driver can also be built as a module. If so, the module
+ will be called tsl2563.
+
+config TSL2583
+ tristate "TAOS TSL2580, TSL2581 and TSL2583 light-to-digital converters"
+ depends on I2C
+ help
+ Provides support for the TAOS tsl2580, tsl2581 and tsl2583 devices.
+ Access ALS data via iio, sysfs.
+
+config TSL2772
+ tristate "TAOS TSL/TMD2x71 and TSL/TMD2x72 Family of light and proximity sensors"
+ depends on I2C
+ help
+ Support for: tsl2571, tsl2671, tmd2671, tsl2771, tmd2771, tsl2572, tsl2672,
+ tmd2672, tsl2772, tmd2772 devices.
+ Provides iio_events and direct access via sysfs.
+
+config TSL4531
+ tristate "TAOS TSL4531 ambient light sensors"
+ depends on I2C
+ help
+ Say Y here if you want to build a driver for the TAOS TSL4531 family
+ of ambient light sensors with direct lux output.
+
+ To compile this driver as a module, choose M here: the
+ module will be called tsl4531.
+
+config US5182D
+ tristate "UPISEMI light and proximity sensor"
+ depends on I2C
+ help
+ If you say yes here you get support for the UPISEMI US5182D
+ ambient light and proximity sensor.
+
+ This driver can also be built as a module. If so, the module
+ will be called us5182d.
+
+config VCNL4000
+ tristate "VCNL4000/4010/4020/4200 combined ALS and proximity sensor"
+ depends on I2C
+ help
+ Say Y here if you want to build a driver for the Vishay VCNL4000,
+ VCNL4010, VCNL4020, VCNL4200 combined ambient light and proximity
+ sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called vcnl4000.
+
+config VEML6070
+ tristate "VEML6070 UV A light sensor"
+ depends on I2C
+ help
+ Say Y here if you want to build a driver for the Vishay VEML6070 UV A
+ light sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called veml6070.
+
+config VL6180
+ tristate "VL6180 ALS, range and proximity sensor"
+ depends on I2C
+ help
+ Say Y here if you want to build a driver for the STMicroelectronics
+ VL6180 combined ambient light, range and proximity sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called vl6180.
+
+config ZOPT2201
+ tristate "ZOPT2201 ALS and UV B sensor"
+ depends on I2C
+ help
+ Say Y here if you want to build a driver for the IDT
+ ZOPT2201 ambient light and UV B sensor.
+
+ To compile this driver as a module, choose M here: the
+ module will be called zopt2201.
+
+endmenu