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path: root/include/media/v4l2-flash-led-class.h
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2019-06-19treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner
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>
2017-12-18media: v4l2-flash-led-class.h: add kernel-doc to two helper funcsMauro Carvalho Chehab
There are two helper functions at v4l2-flash-led-class.h that aren't documented. Document them. Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26media: v4l2-flash-led-class: Document v4l2_flash_init() referencesSakari Ailus
The v4l2_flash_init() keeps a reference to the ops struct but not to the config struct (nor anything it contains). Document this. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Acked-by: Pavel Machek <pavel@ucw.cz> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26media: v4l2-flash-led-class: Create separate sub-devices for indicatorsSakari Ailus
The V4L2 flash interface allows controlling multiple LEDs through a single sub-devices if, and only if, these LEDs are of different types. This approach scales badly for flash controllers that drive multiple flash LEDs or for LED specific associations. Essentially, the original assumption of a LED driver chip that drives a single flash LED and an indicator LED is no longer valid. Address the matter by registering one sub-device per LED. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Acked-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Rui Miguel Silva <rmfrfs@gmail.com> (for greybus/light) Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-07-26media: v4l2-flash: Use led_classdev instead of led_classdev_flash for indicatorSakari Ailus
The V4L2 flash class initialisation expects struct led_classdev_flash that describes an indicator but only uses struct led_classdev which is a field iled_cdev in the struct. Use struct iled_cdev only. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Jacek Anaszewski <jacek.anaszewski@gmail.com> Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-06-06[media] v4l: flash led class: Use fwnode_handle instead of device_node in initSakari Ailus
Pass the more generic fwnode_handle to the init function than the device_node. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Tested-by: Hans Verkuil <hans.verkuil@cisco.com> Tested-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-09[media] v4l2-flash-led-class.h: document v4l2_flash_opsMauro Carvalho Chehab
Fix this warning: ./include/media/v4l2-flash-led-class.h:103: WARNING: c:type reference target not found: v4l2_flash_ops Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2015-08-22[media] Docbook: fix comments at v4l2-flash-led-class.hMauro Carvalho Chehab
Warning(.//include/media/v4l2-flash-led-class.h:51): bad line: unique in the system Warning(.//include/media/v4l2-flash-led-class.h:56): bad line: definitions are available in the header file Warning(.//include/media/v4l2-flash-led-class.h:57): bad line: <linux/led-class-flash.h> Warning(.//include/media/v4l2-flash-led-class.h:122): No description found for parameter 'ops' Warning(.//include/media/v4l2-flash-led-class.h:122): Excess function parameter 'flash_ops' description in 'v4l2_flash_init' Warning(.//include/media/v4l2-flash-led-class.h:130): No description found for parameter 'v4l2_flash' Warning(.//include/media/v4l2-flash-led-class.h:130): Excess function parameter 'flash' description in 'v4l2_flash_release' Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Jonathan Corbet <corbet@lwn.net>
2015-06-22media: Add registration helpers for V4L2 flash sub-devicesJacek Anaszewski
This patch adds helper functions for registering/unregistering LED Flash class devices as V4L2 sub-devices. The functions should be called from the LED subsystem device driver. In case the support for V4L2 Flash sub-devices is disabled in the kernel config the functions' empty versions will be used. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Sakari Ailus <sakari.ailus@iki.fi> Cc: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Bryan Wu <cooloney@gmail.com>