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2022-05-07leds: Move pwm-multicolor driver into rgb directorySven Schwermer1-1/+0
The drivers/leds/rgb subdirectory is relatively fresh, so we move this new PWM multi-color driver into it. Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2022-05-05leds: Add PWM multicolor driverSven Schwermer1-0/+1
By allowing to group multiple monochrome PWM LEDs into multicolor LEDs, all involved LEDs can be controlled in-sync. This enables using effects using triggers, etc. Signed-off-by: Sven Schwermer <sven.schwermer@disruptive-technologies.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2022-05-04leds: Add driver for Qualcomm LPGBjorn Andersson1-0/+3
The Light Pulse Generator (LPG) is a PWM-block found in a wide range of PMICs from Qualcomm. These PMICs typically comes with 1-8 LPG instances, with their output being routed to various other components, such as current sinks or GPIOs. Each LPG instance can operate on fixed parameters or based on a shared lookup-table, altering the duty cycle over time. This provides the means for hardware assisted transitions of LED brightness. A typical use case for the fixed parameter mode is to drive a PWM backlight control signal, the driver therefor allows each LPG instance to be exposed to the kernel either through the LED framework or the PWM framework. A typical use case for the LED configuration is to drive RGB LEDs in smartphones etc, for which the driver supports multiple channels to be ganged up to a MULTICOLOR LED. In this configuration the pattern generators will be synchronized, to allow for multi-color patterns. The idea of modelling this as a LED driver ontop of a PWM driver was considered, but setting the properties related to patterns does not fit in the PWM API. Similarly the idea of just duplicating the lower bits in a PWM and LED driver separately was considered, but this would not allow the PWM channels and LEDs to be configured on a per-board basis. The driver implements the more complex LED interface, and provides a PWM interface on the side of that, in the same driver. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Tested-by: Douglas Anderson <dianders@chromium.org> Tested-by: Luca Weiss <luca@z3ntu.xyz> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org> Tested-by: Marijn Suijten <marijn.suijten@somainline.org> [On the Sony Xperia Nile Discovery, SDM630] Signed-off-by: Pavel Machek <pavel@ucw.cz>
2022-01-12Merge tag 'leds-5.17-rc1' of ↵Linus Torvalds1-1/+0
git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds Pull LED updates from Pavel Machek: "Nothing major is happening here" * tag 'leds-5.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: leds: lp55xx: initialise output direction from dts ARM: dts: omap3-n900: Fix lp5523 for multi color leds: ktd2692: Drop calling dev_of_node() in ktd2692_parse_dt leds: lgm-sso: Get rid of duplicate of_node assignment leds: tca6507: Get rid of duplicate of_node assignment leds: leds-fsg: Drop FSG3 LED driver leds: lp50xx: remove unused variable dt-bindings: leds: Replace moonlight with indicator in mt6360 example leds: led-core: Update fwnode with device_set_node leds: tca6507: use swap() to make code cleaner leds: Add mt6360 driver dt-bindings: leds: Add bindings for MT6360 LED
2022-01-12leds: leds-fsg: Drop FSG3 LED driverLinus Walleij1-1/+0
The board file using this driver has been deleted and the FSG3 LEDs can be modeled using a system controller and some register bit LEDs in the device tree so this driver is no longer needed. Reported-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Cc: Krzysztof Hałasa <khalasa@piap.pl> Cc: Rod Whitby <rod@whitby.id.au> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-12-23leds: simatic-ipc-leds: add new driver for Siemens Industial PCsHenning Schild1-0/+3
This driver adds initial support for several devices from Siemens. It is based on a platform driver introduced in an earlier commit. One of the supported machines has GPIO connected LEDs, here we poke GPIO memory directly because pinctrl does not come up. Signed-off-by: Henning Schild <henning.schild@siemens.com> Acked-by: Pavel Machek <pavel@ucw.cz> Link: https://lore.kernel.org/r/20211213120502.20661-3-henning.schild@siemens.com Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-07-12leds: ktd2692: Move driver to flash subdirectoryLinus Walleij1-1/+0
We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Cc: Ingi Kim <ingi2.kim@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-07-12leds: lm3601x: Move driver to flash subdirectoryLinus Walleij1-1/+0
We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Cc: Dan Murphy <dmurphy@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-07-12leds: sgm3140: Move driver to flash subdirectoryLinus Walleij1-1/+0
We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Cc: Luca Weiss <luca@z3ntu.xyz> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-07-12leds: max77693: Move driver to flash subdirectoryLinus Walleij1-1/+0
We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-07-12leds: as3645a: Move driver to flash subdirectoryLinus Walleij1-1/+0
We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-07-12leds: aat1290: Move driver to flash subdirectoryLinus Walleij1-1/+0
We created a subdirectory for LED drivers that depend on CONFIG_LEDS_CLASS_FLASH, and this driver does so let's move it there. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-03-25leds: lgm: Improve Kconfig helpRahul Tanwar1-1/+1
Remove unnecessary Kconfig symbol LEDS_BLINK Improve Kconfig help text to make it more useful. Signed-off-by: Rahul Tanwar <rtanwar@maxlinear.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-02-26Merge tag 'leds-5.12-rc1' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds Pull LED updates from Pavel Machek: "Besides the usual fixes and new drivers, we are changing CLASS_FLASH to return success to make it easier to work with V4L2 stuff disabled, and we are getting rid of enum that should have been plain integer long time ago. I'm slightly nervous about potential warnings, but it needed to be fixed at some point" * tag 'leds-5.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: leds: lp50xx: Get rid of redundant explicit casting leds: lp50xx: Update headers block to reflect reality leds: lp50xx: Get rid of redundant check in lp50xx_enable_disable() leds: lp50xx: Reduce level of dereferences leds: lp50xx: Switch to new style i2c-driver probe function leds: lp50xx: Don't spam logs when probe is deferred leds: apu: extend support for PC Engines APU1 with newer firmware leds: flash: Fix multicolor no-ops registration by return 0 leds: flash: Add flash registration with undefined CONFIG_LEDS_CLASS_FLASH leds: lgm: Add LED controller driver for LGM SoC dt-bindings: leds: Add bindings for Intel LGM SoC leds: led-core: Get rid of enum led_brightness leds: gpio: Set max brightness to 1 leds: lm3533: Switch to using the new API kobj_to_dev() leds: ss4200: simplify the return expression of register_nasgpio_led() leds: Use DEVICE_ATTR_{RW, RO, WO} macros
2021-02-19leds: lgm: Add LED controller driver for LGM SoCAmireddy Mallikarjuna reddy1-0/+3
Parallel to serial conversion, which is also called SSO controller, can drive external shift register for LED outputs, reset or general purpose outputs. This driver enables LED support for Serial Shift Output Controller (SSO). Signed-off-by: Amireddy Mallikarjuna reddy <mallikarjunax.reddy@linux.intel.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2021-01-31leds: rt8515: Add Richtek RT8515 LED driverLinus Walleij1-0/+3
This adds a driver for the Richtek RT8515 dual channel torch/flash white LED driver. This LED driver is found in some mobile phones from Samsung such as the GT-S7710 and GT-I8190. A V4L interface is added. We do not have a proper datasheet for the RT8515 but it turns out that RT9387A has a public datasheet and is essentially the same chip. We designed the driver in accordance with this datasheet. The day someone needs to drive a RT9387A this driver can probably easily be augmented to handle that chip too. Sakari Ailus, Pavel Machek and Andy Shevchenko helped significantly in getting this driver right. Cc: Sakari Ailus <sakari.ailus@iki.fi> Cc: newbytee@protonmail.com Cc: Stephan Gerhold <stephan@gerhold.net> Cc: linux-media@vger.kernel.org Cc: phone-devel@vger.kernel.org Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-09-26leds: Add driver for Acer Iconia Tab A500Dmitry Osipenko1-0/+1
Acer Iconia Tab A500 is an Android tablet device which has two LEDs embedded into the Power Button. Orange LED indicates "battery charging" status and white LED indicates "wake-up/charge-done" status. The new LED driver provides control over both LEDs to userspace. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-08-17leds: lp50xx: Add the LP50XX family of the RGB LED driverDan Murphy1-0/+1
Introduce the LP5036/30/24/18/12/9 RGB LED driver. The difference in these parts are the number of LED outputs where the: LP5036 can control 36 LEDs LP5030 can control 30 LEDs LP5024 can control 24 LEDs LP5018 can control 18 LEDs LP5012 can control 12 LEDs LP5009 can control 9 LEDs The device has the ability to group LED outputs into control banks so that multiple LED banks can be controlled with the same mixing and brightness. Or the LED outputs can also be controlled independently. Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-07-24leds: initial support for Turris Omnia LEDsMarek Behún1-0/+1
This adds basic support for LEDs on the front side of CZ.NIC's Turris Omnia router. There are 12 RGB LEDs. The controller supports HW triggering mode for the LEDs, but this driver does not support it yet, and sets all the LEDs defined in device-tree into SW mode upon probe. This driver uses the multicolor LED framework. Signed-off-by: Marek Behún <marek.behun@nic.cz> Reviewed-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-07-22leds: multicolor: Introduce a multicolor class definitionDan Murphy1-0/+1
Introduce a multicolor class that groups colored LEDs within a LED node. The multicolor class groups monochrome LEDs and allows controlling two aspects of the final combined color: hue and lightness. The former is controlled via the intensity file and the latter is controlled via brightness file. Signed-off-by: Dan Murphy <dmurphy@ti.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz> [squashed leds: multicolor: Fix camel case in documentation in]
2020-05-25leds: add aw2013 driverNikita Travkin1-0/+1
This commit adds support for AWINIC AW2013 3-channel LED driver. The chip supports 3 PWM channels and is controlled with I2C. Signed-off-by: Nikita Travkin <nikitos.tr@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-04-27leds: add sgm3140 driverLuca Weiss1-0/+1
Add a driver for the SGMICRO SGM3140 Buck/Boost Charge Pump LED driver. This device is controlled by two GPIO pins, one for enabling and the second one for switching between torch and flash mode. Signed-off-by: Luca Weiss <luca@z3ntu.xyz> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-04-27leds: ariel: Add driver for status LEDs on Dell Wyse 3020Lubomir Rintel1-0/+1
This adds support for controlling the LEDs attached to the Embedded Controller on a Dell Wyse 3020 "Ariel" board. Signed-off-by: Lubomir Rintel <lkundrak@v3.sk> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-04-06leds: sort Makefile entriesPavel Machek1-50/+50
Sort Makefile entries to reduce risk of rejects. Signed-off-by: Pavel Machek <pavel@ucw.cz>
2020-02-26leds: add SGI IP30 led supportThomas Bogendoerfer1-0/+1
This patch implemenets a driver to support the front panel LEDs of SGI Octane (IP30) workstations. Reviewed-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2019-12-21leds: tps6105x: add driver for MFD chip LED modeSven Van Asbroeck1-0/+1
This driver adds support for the LED operational mode of the tps6105x MFD device. Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2019-11-03leds: add LED driver for EL15203000 boardOleh Kravchenko1-0/+1
This patch adds a LED class driver for the LEDs found on the Crane Merchandising System EL15203000 LEDs board (aka RED LEDs board). Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua> Reviewed-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Pavel Machek <pavel@ucw.cz>
2019-06-11Merge tag 'ti-lmu-led-drivers' into for-nextJacek Anaszewski1-0/+3
Merge immutable branch between LEDs, MFD and REGULATOR due to TI LMU LED support rework and introduction of two new drivers with DT bindings. * tag 'ti-lmu-led-drivers': leds: lm36274: Introduce the TI LM36274 LED driver dt-bindings: leds: Add LED bindings for the LM36274 regulator: lm363x: Add support for LM36274 mfd: ti-lmu: Add LM36274 support to the ti-lmu dt-bindings: mfd: Add lm36274 bindings to ti-lmu leds: lm3697: Introduce the lm3697 driver mfd: ti-lmu: Remove support for LM3697 dt-bindings: ti-lmu: Modify dt bindings for the LM3697 leds: TI LMU: Add common code for TI LMU devices dt-bindings: mfd: LMU: Add ti,brightness-resolution dt-bindings: mfd: LMU: Add the ramp up/down property
2019-06-07leds: lm36274: Introduce the TI LM36274 LED driverDan Murphy1-0/+1
Introduce the LM36274 LED driver. This driver uses the ti-lmu MFD driver to probe this LED driver. The driver configures only the LED registers and enables the outputs according to the config file. The driver utilizes the TI LMU (Lighting Management Unit) LED common framework to set the brightness bits. Signed-off-by: Dan Murphy <dmurphy@ti.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-05-24leds: lm3697: Introduce the lm3697 driverDan Murphy1-0/+1
Introduce the lm3697 LED driver for backlighting and display. Datasheet location: http://www.ti.com/lit/ds/symlink/lm3697.pdf Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-05-24leds: TI LMU: Add common code for TI LMU devicesDan Murphy1-0/+1
Create a TI LMU common framework for TI LMU devices that share common features. Currently the runtime ramp and brightness setting have been identified as common features with common register settings. This work is derived from Milo Kims TI LMU MFD code. Signed-off-by: Dan Murphy <dmurphy@ti.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-05-24leds: spi-byte: add single byte SPI LED driverChristian Mauderer1-0/+1
This driver adds support for simple SPI based LED controller which use only one byte for setting the brightness. Signed-off-by: Christian Mauderer <oss@c-mauderer.de> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2019-05-14Merge branches 'ib-mfd-arm-leds-5.2', 'ib-mfd-gpio-input-leds-power-5.2', ↵Lee Jones1-0/+1
'ib-mfd-pinctrl-5.2-2' and 'ib-mfd-regulator-5.2', tag 'ib-mfd-arm-net-5.2' into ibs-for-mfd-merged Immutable branch between MFD, ARM and Net due for the 5.2 merge window
2019-05-08leds: max77650: Add LEDs supportBartosz Golaszewski1-0/+1
This adds basic support for LEDs for the max77650 PMIC. The device has three current sinks for driving LEDs. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2019-04-07leds: lm3532: Introduce the lm3532 LED driverDan Murphy1-0/+1
Introduce the Texas Instruments LM3532 White LED driver. The driver supports ALS configurability or manual brightness control. The driver also supports associating LED strings with specific control banks in a group or as individually controlled strings. Signed-off-by: Dan Murphy <dmurphy@ti.com> Tested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2018-09-10leds: add Panasonic AN30259A supportSimon Shields1-0/+1
AN30259A is a 3-channel LED driver which uses I2C. It supports timed operation via an internal PWM clock, and variable brightness. This driver offers support for basic hardware-based blinking and brightness control. The datasheet is freely available: https://www.alliedelec.com/m/d/a9d2b3ee87c2d1a535a41dd747b1c247.pdf Signed-off-by: Simon Shields <simon@lineageos.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2018-05-23leds: lm3601x: Introduce the lm3601x LED driverDan Murphy1-0/+1
Introduce the family of LED devices that can drive a torch, strobe or IR LED. The LED driver can be configured with a strobe timer to execute a strobe flash. The IR LED brightness is controlled via the torch brightness register. The data sheet for each the LM36010 and LM36011 LED drivers can be found here: http://www.ti.com/product/LM36010 http://www.ti.com/product/LM36011 Signed-off-by: Dan Murphy <dmurphy@ti.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2018-05-14leds: Add Spreadtrum SC27xx breathing light controller driverBaolin Wang1-0/+1
This patch adds Spreadtrum SC27xx PMIC series breathing light controller driver, which can support 3 LEDs. Each LED can work at normal PWM mode and breathing mode. Signed-off-by: Xiaotong Lu <xiaotong.lu@spreadtrum.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2018-04-16leds: add LED driver for CR0014114 boardOleh Kravchenko1-0/+1
This patch adds a LED class driver for the RGB LEDs found on the Crane Merchandising System CR0014114 LEDs board. Signed-off-by: Oleh Kravchenko <oleg@kaa.org.ua> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2018-02-19leds: add driver for support Mellanox regmap LEDs for BMC and x86 platformVadim Pasternak1-0/+1
Driver obtains LED devices according to system configuration and creates devices in form: "devicename:color:function", like The full path is to be: /sys/class/leds/mlxreg\:status\:amber/brightness After timer trigger activation: echo timer > /sys/class/leds/mlxreg\:status\:amber/trigger Attributes for LED blinking will appaer in sysfs infrastructure: /sys/class/leds/mlxreg\:status\:amber/delay_off /sys/class/leds/mlxreg\:status\:amber/delay_on LED setting is controlled through the on-board programmable devices, which exports its register map. This device could be attached to any bus type, for which register mapping is supported. Signed-off-by: Vadim Pasternak <vadimp@mellanox.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2018-01-08leds: lm3692x: Introduce LM3692x dual string driverDan Murphy1-0/+1
Introducing the LM3692x Dual-String white LED driver. Data sheet is located http://www.ti.com/lit/ds/snvsa29/snvsa29.pdf Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-11-14Merge tag 'leds_for_4.15rc1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds Pull LED updates from Jacek Anaszewski: "New LED class driver: - add a driver for PC Engines APU/APU2 LEDs New LED trigger: - add a system activity LED trigger LED core improvements: - replace flags bit shift with BIT() macros Convert timers to use timer_setup() in: - led-core - ledtrig-activity - ledtrig-heartbeat - ledtrig-transient LED class drivers fixes: - lp55xx: fix spelling mistake: 'cound' -> 'could' - tca6507: Remove unnecessary reg check - pca955x: Don't invert requested value in pca955x_gpio_set_value() LED documentation improvements: - update 00-INDEX file" * tag 'leds_for_4.15rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/j.anaszewski/linux-leds: leds: Add driver for PC Engines APU/APU2 LEDs leds: lp55xx: fix spelling mistake: 'cound' -> 'could' leds: Convert timers to use timer_setup() Documentation: leds: Update 00-INDEX file leds: tca6507: Remove unnecessary reg check leds: ledtrig-heartbeat: Convert timers to use timer_setup() leds: Replace flags bit shift with BIT() macros leds: pca955x: Don't invert requested value in pca955x_gpio_set_value() leds: ledtrig-activity: Add a system activity LED trigger
2017-11-06leds: Add driver for PC Engines APU/APU2 LEDsAlan Mizrahi1-0/+1
This patch implements the driver to support the front panel LEDs for PC Engines APU and APU2 boards. Signed-off-by: Alan Mizrahi <alan@mizrahi.com.ve> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-26media: leds: as3645a: Add LED flash class driverSakari Ailus1-0/+1
Add a LED flash class driver for the as3654a flash controller. A V4L2 flash driver for it already exists (drivers/media/i2c/as3645a.c), and this driver is based on that. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-19leds: Remove SEAD-3 driverPaul Burton1-1/+0
SEAD3 is using the generic syscon & regmap based register-bit-led driver as of commit c764583f40b8 ("MIPS: SEAD3: Use register-bit-led driver via DT for LEDs") merged in the v4.9 cycle. As such the custom SEAD-3 LED driver is now unused, so remove it. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: linux-leds@vger.kernel.org Cc: linux-mips@linux-mips.org Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-05-14leds: Delete obsolete Versatile driverLinus Walleij1-1/+0
All users of the Versatile LED driver are deleted and replaced with the very generic leds-syscon. Delete the old driver. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-03-29leds: cpcap: new driverSebastian Reichel1-0/+1
Motorola CPCAP is a PMIC (power management integrated circuit) found in multiple smartphones. This driver adds support for the chip's LED controllers. This introduces support for all controllers used by the Droid 4. According to Motorola's driver (no datasheets available) there a couple of more LED controllers. I did not add support for them, since I cannot verify that they work with my modifications. Signed-off-by: Sebastian Reichel <sre@kernel.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-03-21leds: Add LED support for MT6323 PMICSean Wang1-0/+1
MT6323 PMIC is a multi-function device that includes LED function. It allows attaching up to 4 LEDs which can either be on, off or dimmed and/or blinked with the controller. Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
2017-03-06dell-led: move driver to drivers/platform/x86/dell-wmi-led.cMichał Kępień1-1/+0
The dell-led driver handles a specific WMI GUID present on some Dell laptops and as such it belongs in the x86 platform driver subsystem. Source code is moved along with the relevant Kconfig and Makefile entries, with some minor modifications: - Kconfig option is renamed from CONFIG_LEDS_DELL_NETBOOKS to CONFIG_DELL_WMI_LED, - the X86 Kconfig dependency is removed as the whole drivers/platform/x86 menu depends on it, so there is no need to duplicate it, - the name of the module's source file is removed from the header comment to avoid the need to update it in the future. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Tested-by: Alex Hung <alex.hung@canonical.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>