Commit graph

9 commits

Author SHA1 Message Date
Thomas Gleixner
d2912cb15b treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
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>
2019-06-19 17:09:55 +02:00
Mauro Carvalho Chehab
716b87647f media: v4l2-flash-led-class.h: add kernel-doc to two helper funcs
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>
2017-12-18 10:40:41 -05:00
Sakari Ailus
40cefffd35 media: v4l2-flash-led-class: Document v4l2_flash_init() references
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>
2017-08-26 20:26:57 -04:00
Sakari Ailus
503dd28af1 media: v4l2-flash-led-class: Create separate sub-devices for indicators
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LED driver chip that drives a single flash LED and an indicator LED is no
longer valid.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>
2017-08-26 20:26:35 -04:00
Sakari Ailus
85f7ff9702 media: v4l2-flash: Use led_classdev instead of led_classdev_flash for indicator
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>
2017-07-26 08:40:28 -04:00
Sakari Ailus
048ea05b4f [media] v4l: flash led class: Use fwnode_handle instead of device_node in init
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>
2017-06-06 09:27:51 -03:00
Mauro Carvalho Chehab
0d56015d80 [media] v4l2-flash-led-class.h: document v4l2_flash_ops
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>
2016-09-09 10:19:35 -03:00
Mauro Carvalho Chehab
62ba6b22f4 [media] Docbook: fix comments at v4l2-flash-led-class.h
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>
2015-08-22 05:28:44 -03:00
Jacek Anaszewski
42bd6f59ae media: Add registration helpers for V4L2 flash sub-devices
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>
2015-06-22 13:53:16 -07:00