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path: root/drivers/iio/light/tsl2583.c
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* iio: light: tsl2583: Convert to i2c's .probe_new()Uwe Kleine-König2022-11-231-3/+2
| | | | | | | | | | The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted. 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/20221118224540.619276-145-uwe@kleine-koenig.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: light: tsl2583: Fix module unloadingShreeya Patel2022-10-171-1/+1
| | | | | | | | | | | | | tsl2583 probe() uses devm_iio_device_register() and calling iio_device_unregister() causes the unregister to occur twice. s Switch to iio_device_register() instead of devm_iio_device_register() in probe to avoid the device managed cleanup. Fixes: 371894f5d1a0 ("iio: tsl2583: add runtime power management support") Signed-off-by: Shreeya Patel <shreeya.patel@collabora.com> Link: https://lore.kernel.org/r/20220826122352.288438-1-shreeya.patel@collabora.com Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* i2c: Make remove callback return voidUwe Kleine-König2022-08-161-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The value returned by an i2c driver's remove function is mostly ignored. (Only an error message is printed if the value is non-zero that the error is ignored.) So change the prototype of the remove function to return no value. This way driver authors are not tempted to assume that passing an error to the upper layer is a good idea. All drivers are adapted accordingly. There is no intended change of behaviour, all callbacks were prepared to return 0 before. Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com> Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au> Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Crt Mori <cmo@melexis.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013 Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/* Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5 Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860 Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power Acked-by: Krzysztof Hałasa <khalasa@piap.pl> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
* iio: light: tsl2583: Use DEFINE_RUNTIME_DEV_PM_OPS and pm_ptr()Jonathan Cameron2022-07-181-8/+5
| | | | | | | | | | | | Using these new macros allows removal of unused pm_ops structure and functions if !CONFIG_PM without the need to mark the function __maybe_unused. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Brian Masney <masneyb@onstation.org> Reviewed-by: Brian Masney <masneyb@onstation.org> Reviewed-by: Paul Cercueil <paul@crapouillou.net> Link: https://lore.kernel.org/r/20220621202719.13644-31-jic23@kernel.org
* iio:light:tsl2583: Remove duplicated error reporting in .remove()Uwe Kleine-König2022-06-111-1/+3
| | | | | | | | | | | | | | | | | Returning an error value in an i2c remove callback results in an error message being emitted by the i2c core, but otherwise it doesn't make a difference. The device goes away anyhow and the devm cleanups are called. As tsl2583_set_power_state() already emits an error message on failure and the additional error message by the i2c core doesn't add any useful information, change the return value to zero to suppress this message. This patch is a preparation for making i2c remove callbacks return void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20220430081607.15078-10-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: light: tsl2583: Balance runtime pm + use pm_runtime_resume_and_get()Jonathan Cameron2021-05-171-6/+7
| | | | | | | | | | | | | | | Error paths in read_raw() and write_raw() callbacks failed to perform and type of runtime pm put(). Remove called pm_runtime_put_noidle() but there is no equivalent get (this is safe because the reference count is protected against going below zero, but it is misleading. Whilst here use pm_runtime_resume_and_get() to replace boilerplate. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Brian Masney <masneyb@onstation.org> Reviewed-by: Brian Masney <masneyb@onstation.org> Reviewed-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/20210509113354.660190-4-jic23@kernel.org
* iio: tsl2583: Fix division by a zero lux_valColin Ian King2021-05-101-0/+8
| | | | | | | | | | | | | | | | | The lux_val returned from tsl2583_get_lux can potentially be zero, so check for this to avoid a division by zero and an overflowed gain_trim_val. Fixes clang scan-build warning: drivers/iio/light/tsl2583.c:345:40: warning: Either the condition 'lux_val<0' is redundant or there is division by zero at line 345. [zerodivcond] Fixes: ac4f6eee8fe8 ("staging: iio: TAOS tsl258x: Device driver") Signed-off-by: Colin Ian King <colin.king@canonical.com> Cc: <Stable@vger.kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: tsl2583: Use DIV_ROUND_CLOSEST() instead of open-coding itLars-Peter Clausen2021-01-091-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use DIV_ROUND_CLOSEST() instead of open-coding it. This documents intent and makes it more clear what is going on for the casual reviewer. Generated using the following the Coccinelle semantic patch. // <smpl> @r1@ expression x; constant C1; constant C2; @@ ((x) + C1) / C2 @script:python@ C1 << r1.C1; C2 << r1.C2; @@ try: if int(C1) * 2 != int(C2): cocci.include_match(False) except: cocci.include_match(False) @@ expression r1.x; constant r1.C1; constant r1.C2; @@ -(((x) + C1) / C2) +DIV_ROUND_CLOSEST(x, C2) // </smpl> Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Link: https://lore.kernel.org/r/20201227171126.28216-3-lars@metafoo.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: remove explicit IIO device parent assignmentAlexandru Ardelean2020-06-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157Thomas Gleixner2019-05-301-10/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 3 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version [author] [graeme] [gregory] [gg]@[slimlogic] [co] [uk] [author] [kishon] [vijay] [abraham] [i] [kishon]@[ti] [com] [based] [on] [twl6030]_[usb] [c] [author] [hema] [hk] [hemahk]@[ti] [com] this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1105 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.202006027@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* iio: tsl2583: correct values in integration_time_availableBrian Masney2018-05-201-1/+1
| | | | | | | | | | | | | | The times reported by the in_illuminance_integration_time_available sysfs attribute are actually in milliseconds, not microseconds. This patch corrects the times with the correct unit. The fixes tag is inaccurate as the issue existed when the driver was still in staging. However, lots of changes occured before it graduated so this is as a good a point as any for backports. Signed-off-by: Brian Masney <masneyb@onstation.org> Fixes: f44d5c8ac399 ("staging: iio: tsl2583: move out of staging") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio:light: drop assign iio_info.driver_module and iio_trigger_ops.ownerJonathan Cameron2017-08-221-1/+0
| | | | | | | | | The equivalent of both of these are now done via macro magic when the relevant register calls are made. The actual structure elements will shortly go away. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
* iio: light: tsl2583: constify i2c_device_idArvind Yadav2017-08-201-1/+1
| | | | | | | | | i2c_device_id are not supposed to change at runtime. All functions working with i2c_device_id provided by <linux/i2c.h> work with const i2c_device_id. So mark the non-const structs as const. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
* iio: tsl2583: add runtime power management supportBrian Masney2017-05-161-30/+76
| | | | | | | | | | This patch adds runtime power management support to the tsl2583 driver. The device is powered off after two seconds of inactivity. Verified that the driver still functions correctly using a TSL2581 hooked up to a Raspberry Pi 2. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* iio: tsl2583: make array large enoughDan Carpenter2016-11-241-1/+1
| | | | | | | | | | | This array is supposed to have 10 elements. Smatch complains that with the current code we can have n == max_ints and read beyond the end of the array. Fixes: ac4f6eee8fe8 ("staging: iio: TAOS tsl258x: Device driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
* staging: iio: tsl2583: move out of stagingBrian Masney2016-11-131-0/+913
Move tsl2580, tsl2581, tsl2583 driver out of staging into mainline. Signed-off-by: Brian Masney <masneyb@onstation.org> Signed-off-by: Jonathan Cameron <jic23@kernel.org>