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path: root/drivers/leds/leds-syscon.c
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2023-12-13leds: syscon: Support 'reg' in addition to 'offset' for register addressRob Herring1-1/+2
The register-bit-led binding now also supports 'reg' in addition to 'offset' for the register address. Add support to the driver to get the address from 'reg'. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20231025190619.881090-2-robh@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2023-07-28leds: Explicitly include correct DT includesRob Herring1-2/+1
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230714174651.4058753-1-robh@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>
2023-01-30leds: syscon: Get rid of custom led_init_default_state_get()Andy Shevchenko1-26/+23
LED core provides a helper to parse default state from firmware node. Use it instead of custom implementation. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20230103131256.33894-11-andriy.shevchenko@linux.intel.com
2020-09-26leds: parse linux,default-trigger DT property in LED coreMarek Behún1-2/+0
Do the parsing of `linux,default-trigger` DT property to LED core. Currently it is done in many different drivers and the code is repeated. This patch removes the parsing from 23 drivers: an30259a, aw2013, bcm6328, bcm6358, cr0014114, el15203000, gpio, is31fl32xx, lm3532, lm36274, lm3692x, lm3697, lp50xx, lp8860, lt3593, max77650, mt6323, ns2, pm8058, pwm, syscon, tlc591xx and turris-omnia. There is one driver in drivers/input which parses this property on it's own. I shall send a separate patch there after this is applied. There are still 8 drivers that parse this property on their own because they do not pass the led_init_data structure to the registering function. I will try to refactor those in the future. Signed-off-by: Marek Behún <marek.behun@nic.cz> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-09-26leds: syscon: use struct led_init_data when registeringMarek Behún1-3/+4
By using struct led_init_data when registering we do not need to parse `label` DT property. Moreover `label` is deprecated and if it is not present but `color` and `function` are, LED core will compose a name from these properties instead. Signed-off-by: Marek Behún <marek.behun@nic.cz> Cc: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-09-26leds: various: use dev_of_node(dev) instead of dev->of_nodeMarek Behún1-2/+2
The dev_of_node function should be preferred. Signed-off-by: Marek Behún <marek.behun@nic.cz> Cc: Orson Zhai <orsonzhai@gmail.com> Cc: Baolin Wang <baolin.wang7@gmail.com> Cc: Chunyan Zhang <zhang.lyra@gmail.com> Cc: Sean Wang <sean.wang@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: Riku Voipio <riku.voipio@iki.fi> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2019-09-01leds: syscon: Use resource managed variant of device registerAlexander Dahl1-1/+1
We have a MFD driver compiled as module instantiating this driver. When unloading that module, those LED devices are not removed, which produces conflicts, when that module is inserted again. Signed-off-by: Alexander Dahl <ada@thorsis.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156Thomas Gleixner1-15/+1
Based on 1 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 you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 59 temple place suite 330 boston ma 02111 1307 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1334 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-01-04leds: syscon: Make the driver explicitly non-modularPaul Gortmaker1-15/+3
The Kconfig currently controlling compilation of this code is: drivers/leds/Kconfig:config LEDS_SYSCON drivers/leds/Kconfig: bool "LED support for LEDs on system controllers" ...meaning that it currently is not being built as a module by anyone. Lets remove the modular code that is essentially orphaned, so that when reading the driver there is no doubt it is builtin-only. We explicitly disallow a driver unbind, since that doesn't have a sensible use case anyway, and it allows us to drop the ".remove" code for non-modular drivers. Since module_platform_driver() uses the same init level priority as builtin_platform_driver() the init ordering remains unchanged with this commit. Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code. Cc: Richard Purdie <rpurdie@rpsys.net> Cc: linux-leds@vger.kernel.org Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-08-28leds: syscon: Correct check for syscon_node_to_regmap() errorsBjorn Andersson1-2/+2
syscon_node_to_regmap() returns a regmap or an ERR_PTR(). Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
2015-05-11leds: syscon: instantiate from platform deviceLinus Walleij1-85/+85
Currently syscon LEDs will traverse the device tree looking for syscon devices and if found, traverse any subnodes of these to identify matching children and from there instantiate LED class devices. This is not a good use of the Linux device model. Instead we have converted the device trees to add the "simple-mfd" property to the MFD nexi spawning syscon LEDs so that these will appear as platform devices in the system and we can use the proper device probing mechanism. Cc: Arnd Bergmann <arnd@arndb.de> Cc: Lee Jones <lee.jones@linaro.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Bjorn Andersson <bjorn.andersson@sonymobile.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-11-15leds: syscon: handle multiple syscon instancesLinus Walleij1-31/+36
Currently the syscon LED driver will only handle LEDs on the first syscon found in the system. But there can be several of them, so augment the driver to traverse all syscon nodes and check for syscon LEDs on them. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-11-15leds: delete copy/paste mistakeLinus Walleij1-4/+0
A chunk of text followed the copied license text, ehm, sorry that kind of things happen from time to time. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-09-26leds: add a driver for syscon-based LEDsLinus Walleij1-0/+166
This makes it possible to create a set of LEDs from a syscon MFD instance, which is lean mean and clean on the ARM reference designs and can replace the Versatile LEDs driver in the long run, as well as other custom syscon LEDs drivers. Cc: Bryan Wu <cooloney@gmail.com> Cc: Richard Purdie <rpurdie@rpsys.net> [Fixed cocinelle warnings] Signed-off-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>