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path: root/drivers/iio/light/tsl2772.c
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2025-04-22iio: normalize array sentinel styleDavid Lechner
Use `\t(\{ ?\},|\{\}|\{\s*/\*.*\*/\s*\},?)$` regex to find and replace the array sentinel in all IIO drivers to the same style. For some time, we've been trying to consistently use `{ }` (no trailing comma, no comment, one space between braces) for array sentinels in the IIO subsystem. Still nearly 50% of existing code uses a different style. To save reviewers from having to request this trivial change as frequently, let's normalize the style in all existing IIO drivers. At least when code is copy/pasted to new drivers, the style will be consistent. Signed-off-by: David Lechner <dlechner@baylibre.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Link: https://patch.msgid.link/20250411-iio-sentinel-normalization-v1-1-d293de3e3d93@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-11-03iio: fix write_event_config signatureJulien Stephan
write_event_config callback use an int for state, but it is actually a boolean. iio_ev_state_store is actually using kstrtobool to check user input, then gives the converted boolean value to write_event_config. Fix signature and update all iio drivers to use the new signature. This patch has been partially written using coccinelle with the following script: $ cat iio-bool.cocci // Options: --all-includes virtual patch @c1@ identifier iioinfo; identifier wecfunc; @@ static const struct iio_info iioinfo = { ..., .write_event_config = ( wecfunc | &wecfunc ), ..., }; @@ identifier c1.wecfunc; identifier indio_dev, chan, type, dir, state; @@ int wecfunc(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, -int +bool state) { ... } make coccicheck MODE=patch COCCI=iio-bool.cocci M=drivers/iio Unfortunately, this script didn't match all files: * all write_event_config callbacks using iio_device_claim_direct_scoped were not detected and not patched. * all files that do not assign and declare the write_event_config callback in the same file. iio.h was also manually updated. The patch was build tested using allmodconfig config. cc: Julia Lawall <julia.lawall@inria.fr> Signed-off-by: Julien Stephan <jstephan@baylibre.com> Link: https://patch.msgid.link/20241031-iio-fix-write-event-config-signature-v2-7-2bcacbb517a2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-11-03iio: light: tsl2772: simplify code in write_event_config callbackJulien Stephan
iio_ev_state_store is actually using kstrtobool to check user input, then gives the converted boolean value to the write_event_config callback. Remove useless code in write_event_config callback. Signed-off-by: Julien Stephan <jstephan@baylibre.com> Link: https://patch.msgid.link/20241031-iio-fix-write-event-config-signature-v2-3-2bcacbb517a2@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-05-21iio: Switch i2c drivers back to use .probe()Uwe Kleine-König
After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230515205048.19561-1-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-04-08iio: light: tsl2772: fix reading proximity-diodes from device treeBrian Masney
tsl2772_read_prox_diodes() will correctly parse the properties from device tree to determine which proximity diode(s) to read from, however it didn't actually set this value on the struct tsl2772_settings. Let's go ahead and fix that. Reported-by: Tom Rix <trix@redhat.com> Link: https://lore.kernel.org/lkml/20230327120823.1369700-1-trix@redhat.com/ Fixes: 94cd1113aaa0 ("iio: tsl2772: add support for reading proximity led settings from device tree") Signed-off-by: Brian Masney <bmasney@redhat.com> Link: https://lore.kernel.org/r/20230404011455.339454-1-bmasney@redhat.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-11-23iio: light: tsl2772: Convert to i2c's .probe_new()Uwe Kleine-König
.probe_new() doesn't get the i2c_device_id * parameter, so determine that explicitly in the probe function. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20221118224540.619276-146-uwe@kleine-koenig.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-04-28iio: light: tsl2772: Make use of device propertiesAndy Shevchenko
Convert the module to be property provider agnostic and allow it to be used on non-OF platforms. While at it, reuse temporary device pointer in the same function. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20220413181402.19582-1-andriy.shevchenko@linux.intel.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-01-23iio:light:tsl2722: Fix inconsistent spacing before } in id tableJonathan Cameron
The final entry was missing a space. Tidy that up. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Gwendal Grignou <gwendal@chromium.org> Link: https://lore.kernel.org/r/20211230174911.78291-15-jic23@kernel.org
2020-09-03iio: light: tsl2772: Simplify with dev_err_probe()Krzysztof Kozlowski
Common pattern of handling deferred probe can be simplified with dev_err_probe(). Less code and also it prints the error value. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20200829064726.26268-15-krzk@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-06-14iio: remove explicit IIO device parent assignmentAlexandru Ardelean
This patch applies the semantic patch: @@ expression I, P, SP; @@ I = devm_iio_device_alloc(P, SP); ... - I->dev.parent = P; It updates 302 files and does 307 deletions. This semantic patch also removes some comments like '/* Establish that the iio_dev is a child of the i2c device */' But this is is only done in case where the block is left empty. The patch does not seem to cover all cases. It looks like in some cases a different variable is used in some cases to assign the parent, but it points to the same reference. In other cases, the block covered by ... may be just too big to be covered by the semantic patch. However, this looks pretty good as well, as it does cover a big bulk of the drivers that should remove the parent assignment. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2020-04-19iio: tsl2772: Use scnprintf() for avoiding potential buffer overflowTakashi Iwai
snprintf() is a hard-to-use function, it's especially difficult to use it for concatenating substrings in a buffer with a limited size. Since snprintf() returns the would-be-output size, not the actual size, the subsequent use of snprintf() may go beyond the given limit easily. Although the current code doesn't actually overflow the buffer, it's an incorrect usage. This patch replaces such snprintf() calls with a safer version, scnprintf(). Also this fixes the incorrect argument of the buffer limit size passed to snprintf(), too. The size has to be decremented for the remaining length. Signed-off-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-08-05iio: tsl2772: Use regulator_bulk_() APIsChuhong Yuan
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 Yuan
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 Yuan
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 Yuan
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 Masney
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 Masney
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 Masney
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 King
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 Masney
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>