iio: light: add support for veml6046x00 RGBIR color sensor

Add Vishay VEML6046X00 high accuracy RGBIR color sensor.

This sensor provides three colour (red, green and blue) as well as one
infrared (IR) channel through I2C.

Support direct and buffered mode.

An optional interrupt for signaling green colour threshold underflow or
overflow is not supported so far.

Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Link: https://patch.msgid.link/20250728075447.338725-3-ak@it-klinger.de
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/light/Kconfig

@@ -724,6 +724,19 @@ config VEML6040
 	  To compile this driver as a module, choose M here: the
 	  module will be called veml6040.
 
+config VEML6046X00
+	tristate "VEML6046X00 RGBIR color sensor"
+	select REGMAP_I2C
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	depends on I2C
+	help
+	  Say Y here if you want to build a driver for the Vishay VEML6046X00
+	  high accuracy RGBIR color sensor.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called veml6046x00.
+
 config VEML6070
 	tristate "VEML6070 UV A light sensor"
 	depends on I2C

drivers/iio/light/Makefile

@@ -67,6 +67,7 @@ obj-$(CONFIG_VCNL4035)		+= vcnl4035.o
 obj-$(CONFIG_VEML3235)		+= veml3235.o
 obj-$(CONFIG_VEML6030)		+= veml6030.o
 obj-$(CONFIG_VEML6040)		+= veml6040.o
+obj-$(CONFIG_VEML6046X00)	+= veml6046x00.o
 obj-$(CONFIG_VEML6070)		+= veml6070.o
 obj-$(CONFIG_VEML6075)		+= veml6075.o
 obj-$(CONFIG_VL6180)		+= vl6180.o