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iio: light: introduce si1133 

e-mail received from Silicon Lab to confirm that the licensing
isn't a problem.

"
Dear Maxime Roussin-Belanger,

The LUX calculation code only works with Si1133.
As long as the software is used with Silicon Lab's sensor product,
I don't see any problem.

Regards,
Tony
"

Signed-off-by: Maxime Roussin-Bélanger <maxime.roussinbelanger@gmail.com>
Reviewed-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Maxime Roussin-Bélanger 2018-07-19 16:26:25 -04:00 committed by Jonathan Cameron
parent c0e4e0fd95
commit e01e7eaf37
4 changed files with 1103 additions and 0 deletions
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22
Documentation/ABI/testing/sysfs-bus-iio-light-si1133 Normal file
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@ -0,0 +1,22 @@
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_ir_small_raw
KernelVersion: 4.18
Contact: linux-iio@vger.kernel.org
Description:
Unit-less infrared intensity. The intensity is measured from 1
dark photodiode. "small" indicate the surface area capturing
infrared.
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_ir_large_raw
KernelVersion: 4.18
Contact: linux-iio@vger.kernel.org
Description:
Unit-less infrared intensity. The intensity is measured from 4
dark photodiodes. "large" indicate the surface area capturing
infrared.
What: /sys/bus/iio/devices/iio:deviceX/in_intensity_large_raw
KernelVersion: 4.18
Contact: linux-iio@vger.kernel.org
Description:
Unit-less light intensity with more diodes.

12
drivers/iio/light/Kconfig
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@ -1,3 +1,4 @@
#
# Light sensors
#
@ -319,6 +320,17 @@ config PA12203001
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

1
drivers/iio/light/Makefile
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@ -32,6 +32,7 @@ obj-$(CONFIG_OPT3001) += opt3001.o
obj-$(CONFIG_PA12203001) += pa12203001.o
obj-$(CONFIG_RPR0521) += rpr0521.o
obj-$(CONFIG_SENSORS_TSL2563) += tsl2563.o
obj-$(CONFIG_SI1133) += si1133.o
obj-$(CONFIG_SI1145) += si1145.o
obj-$(CONFIG_STK3310) += stk3310.o
obj-$(CONFIG_ST_UVIS25) += st_uvis25_core.o

1068
drivers/iio/light/si1133.c Normal file
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