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path: root/drivers/iio/light/tsl2772.c
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2019-08-05iio: tsl2772: Use regulator_bulk_() APIsChuhong Yuan1-58/+29
Use regulator_bulk_() APIs to shrink driver size. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Reviewed-by: Brian Masney <masneyb@onstation.org> Tested-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-08-05iio: tsl2772: Use devm_iio_device_registerChuhong Yuan1-18/+1
Use devm_iio_device_register, which removes the tsl2772_remove function. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Reviewed-by: Brian Masney <masneyb@onstation.org> Tested-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-08-05iio: tsl2772: Use devm_add_action_or_reset for tsl2772_chip_offChuhong Yuan1-3/+13
Use devm_add_action_or_reset to call tsl2772_chip_off when the device is removed. This also fixes the issue that the chip is turned off before the device is unregistered. Not marked for stable as fairly hard to hit the bug and this is in the middle of a set making other cleanups to the driver. Hence will probably need explicit backporting. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Fixes: c06c4d793584 ("staging: iio: tsl2x7x/tsl2772: move out of staging") Reviewed-by: Brian Masney <masneyb@onstation.org> Tested-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-08-05iio: tsl2772: Use devm_add_action_or_resetChuhong Yuan1-3/+3
Use devm_add_action_or_reset to remove the call to tsl2772_disable_regulators_action to simplify the error path. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Reviewed-by: Brian Masney <masneyb@onstation.org> Tested-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-19iio: tsl2772: add support for regulator frameworkBrian Masney1-1/+94
This patch adds support for the regulator framework to the tsl2772 driver. Driver was tested using a LG Nexus 5 (hammerhead) phone with the two regulators and on a Raspberry Pi 2 without any regulators controlling the power to the sensor. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-18iio: tsl2772: add support for avago,apds9930Brian Masney1-2/+16
The Avago APDS9930 has the same register set as the TAOS/AMS TSL2772 so this patch adds the correct bindings and the appropriate LUX table values derived from the values in the datasheet. Driver was tested on a LG Nexus 5 (hammerhead) phone. avago,apds9930 datasheet: https://www.mouser.com/datasheet/2/678/avago_AV02-3190EN_DS_APDS-9930_2014-03-25[1]-1217273.pdf tsl2772 datasheet: https://ams.com/eng/content/download/291503/1066377/file/TSL2772_DS000181_2-00.pdf Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-08-18iio: tsl2772: add support for reading proximity led settings from device treeBrian Masney1-0/+81
This patch adds support for optionally reading the proximity led diode and current settings from device tree. This was tested using a LG Nexus 5 (hammerhead) which requires a different diode than the driver default for the IR LED. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-06-24iio: tsl2x7x/tsl2772: avoid potential division by zeroColin Ian King1-0/+2
It may be possible for tsl2772_get_lux to return a zero lux value and hence a division by zero can occur when lux_val is zero. Check for this case and return -ERANGE to avoid the division by zero. Detected by CoverityScan, CID#1469484 ("Division or modulo by zero") Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-05-12staging: iio: tsl2x7x/tsl2772: move out of stagingBrian Masney1-0/+1800
Move the tsl2772 driver out of staging and into mainline. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>