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path: root/drivers/leds/leds-lp3952.c
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2022-08-16i2c: Make remove callback return voidUwe Kleine-König1-3/+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>
2020-04-17leds: lp3952: Include the right headerLinus Walleij1-1/+1
This driver is using the GPIO descriptor API properly as it should be but is including the legacy GPIO header <linux/gpio.h>. Fix it by including <linux/gpio/consumer.h> instead. Cc: Tony Makkiel <tony.makkiel@daqri.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner1-5/+1
Based on 2 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 version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-03-23leds: lp3952: Use 'if (ret)' patternAndy Shevchenko1-3/+4
Instead of unusual "if (!ret)" use "if (ret)" in lp3952_get_label(). Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-03-23leds: lp3952: Remove ACPI support for lp3952Andy Shevchenko1-11/+0
In ACPI world any ID should be carefully chosen and registered officially. The discussion [1] as I read it gets to wilful assignment an ID for non-existing real DSDT example. Rafael already told [2] how this device would be enumerated using compatible string. To be more precise look at the possible DSDT excerpt below: Device (LDX0) { Name (_HID, "PRP0001") Name (_DDN, "TI LP3952 compatible led driver") ... }) Name (_DSD, Package () { ToUUID("daffd814-6eba-4d8c-8a91-bc9bbf4aa301"), Package () { Package () {"compatible", "ti,lp3952"}, ... } }) Based on above, remove non-official ACPI IDs and enumeration from the driver. Note: currently driver has no compatible strings at all, to make above working one should add at least one. [1] https://e2e.ti.com/support/power_management/led_driver/f/192/t/524926 [2] https://www.spinics.net/lists/linux-acpi/msg67125.html Cc: Tony Makkiel <tony.makkiel@daqri.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2016-11-22leds: lp3952: Export I2C module alias information for module autoloadJavier Martinez Canillas1-0/+1
If the driver is built as a module, I2C module alias information is not filled so the module won't be autoloaded if the device isn't registered over ACPI. Export the I2C device table alias with MODULE_DEVICE_TABLE() macro so the information is exported in the module. Before this patch: $ modinfo drivers/leds/leds-lp3952.ko | grep alias alias: acpi*:TXNW3952:* After this patch: $ modinfo drivers/leds/leds-lp3952.ko | grep alias alias: i2c:lp3952 alias: acpi*:TXNW3952:* Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2016-07-18leds: LED driver for TI LP3952 6-Channel Color LEDTony Makkiel1-0/+301
The chip can drive 2 sets of RGB leds. Controller can be controlled via PWM, I2C and audio synchronisation. This driver uses I2C to communicate with the chip. Datasheet: http://www.ti.com/lit/gpn/lp3952 Signed-off-by: Tony Makkiel <tony.makkiel@daqri.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Reviewed-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>