Eric Lee / smarc-fsl-linux-kernel

04 Nov, 2019

1 commit

26 Jul, 2019

1 commit

  • b2b998c0f   leds: class: Improve LED and LED flash class registration API ... Browse Code »

    Replace of_led_classdev_register() with led_classdev_register_ext(), which
    accepts easily extendable struct led_init_data, instead of the fixed
    struct device_node argument. The latter can be now passed in an fwnode
    property of the struct led_init_data.

    The modification is driven by the need for passing additional arguments
    required for the forthcoming generic mechanism for composing LED names.
    Currently the LED name is conveyed in the "name" char pointer property of
    the struct led_classdev. This is redundant since LED class device name
    is accessible throughout the whole LED class device life time via
    associated struct device's kobj->name property.

    The change will not break any existing clients since the patch alters
    also existing led_classdev{_flash}_register() macro wrappers, that pass
    NULL in place of init_data, which leads to using legacy name
    initialization path basing on the struct led_classdev's "name" property.

    Three existing users of devm_of_led_classdev_registers() are modified
    to use devm_led_classdev_register(), which will not impact their
    operation since they in fact didn't need to pass struct device_node on
    registration from the beginning.

    Signed-off-by: Jacek Anaszewski
    Cc: Baolin Wang
    Cc: Dan Murphy
    Cc: Daniel Mack
    Cc: Linus Walleij
    Cc: Oleh Kravchenko
    Cc: Sakari Ailus
    Cc: Simon Shields
    Acked-by: Pavel Machek

    Jacek Anaszewski
     

19 Jun, 2019

1 commit

  • d2912cb15   treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 ... Browse Code »

    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
    Reviewed-by: Enrico Weigelt
    Reviewed-by: Kate Stewart
    Reviewed-by: Allison Randal
    Cc: linux-spdx@vger.kernel.org
    Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de
    Signed-off-by: Greg Kroah-Hartman

    Thomas Gleixner
     

04 Jan, 2016

3 commits

  • abc196359   leds: flash: Remove checking for state < 1 in flash_strobe_store() ... Browse Code »

    Strobe state variable is declared as unsigned long, remove
    the check for values less than zero then.

    Signed-off-by: Jacek Anaszewski
    Reported-by: David Binderman

    Jacek Anaszewski
     
  • 13ae79bbe   leds: core: Drivers shouldn't enforce SYNC/ASYNC brightness setting ... Browse Code »

    This patch removes SET_BRIGHTNESS_ASYNC and SET_BRIGHTNESS_SYNC flags.
    led_set_brightness() now calls led_set_brightness_nosleep() instead of
    choosing between sync and async op basing on the flags defined by the
    driver.

    From now on, if a user wants to make sure that brightness will be set
    synchronously, they have to use led_set_brightness_sync() API. It is now
    being made publicly available since it has become apparent that it is
    a caller who should decide whether brightness is to be set in
    a synchronous or an asynchronous way.

    Signed-off-by: Jacek Anaszewski
    Acked-by: Sakari Ailus

    Jacek Anaszewski
     
  • 437a4240f   leds: Rename brightness_set_sync op to brightness_set_blocking ... Browse Code »

    The initial purpose of brightness_set_sync op, introduced along with
    the LED flash class extension, was to add a means for setting torch LED
    brightness as soon as possible, which couldn't have been guaranteed by
    brightness_set op. This patch renames the op to brightness_set_blocking,
    which describes its purpose in a more generic way. It is beneficial
    in view of the prospective changes in the LED core, aiming at removing
    the need for using work queues in LED class drivers that can sleep
    or use delays while setting brightness.

    Signed-off-by: Jacek Anaszewski
    Acked-by: Andrew Lunn
    Acked-by: Pavel Machek
    Acked-by: Sakari Ailus

    Jacek Anaszewski
     

10 Mar, 2015

1 commit

27 Jan, 2015

1 commit

  • 7aea8389a   leds: Add LED Flash class extension to the LED subsystem ... Browse Code »

    Some LED devices support two operation modes - torch and flash.
    This patch provides support for flash LED devices in the LED subsystem
    by introducing new sysfs attributes and kernel internal interface.
    The attributes being introduced are: flash_brightness, flash_strobe,
    flash_timeout, max_flash_timeout, max_flash_brightness, flash_fault,
    flash_sync_strobe and available_sync_leds. All the flash related
    features are placed in a separate module.

    The modifications aim to be compatible with V4L2 framework requirements
    related to the flash devices management. The design assumes that V4L2
    sub-device can take of the LED class device control and communicate
    with it through the kernel internal interface. When V4L2 Flash sub-device
    file is opened, the LED class device sysfs interface is made
    unavailable.

    Signed-off-by: Jacek Anaszewski
    Acked-by: Kyungmin Park
    Cc: Richard Purdie
    Acked-by: Pavel Machek
    Signed-off-by: Bryan Wu

    Jacek Anaszewski