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Author SHA1 Message Date
Subhajit Ghosh
0d8d626407 iio: light: apds9306: Fix input arguments to in_range()
Third input argument to in_range() function requires the number of
values in range, not the last value in that range. Update macro for
persistence and adaptive threshold to reflect number of values
supported instead of the maximum values supported.

Fixes: 620d1e6c7a ("iio: light: Add support for APDS9306 Light Sensor")
Signed-off-by: Subhajit Ghosh <subhajit.ghosh@tweaklogic.com>
Link: https://lore.kernel.org/r/20240427090914.37274-1-subhajit.ghosh@tweaklogic.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-04-28 12:46:53 +01:00
Subhajit Ghosh
85795d3edd iio: light: apds9306: Improve apds9306_write_event_config()
Simplify event configuration flow.

Suggested-by: Jonathan Cameron <jic23@kernel.org>
Link: https://lore.kernel.org/all/20240310124237.52fa8a56@jic23-huawei/
Signed-off-by: Subhajit Ghosh <subhajit.ghosh@tweaklogic.com>
Link: https://lore.kernel.org/r/20240405104641.29478-1-subhajit.ghosh@tweaklogic.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-04-06 16:52:45 +01:00
Dan Carpenter
c8e2d48739 iio: light: apds9306: Fix off by one in apds9306_sampling_freq_get()
The > comparison needs to be >= to prevent an out of bounds access.

Fixes: 620d1e6c7a ("iio: light: Add support for APDS9306 Light Sensor")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Subhajit Ghosh <subhajit.ghosh@tweaklogic.com>
Link: https://lore.kernel.org/r/69c5cb83-0209-40ff-a276-a0ae5e81c528@moroto.mountain
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-04-06 16:41:27 +01:00
Subhajit Ghosh
620d1e6c7a 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 <subhajit.ghosh@tweaklogic.com>
Link: https://lore.kernel.org/r/20240309105031.10313-6-subhajit.ghosh@tweaklogic.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-03-25 20:10:12 +00:00