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acd899e4f3
linux-next/drivers/leds
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Jacek Anaszewski acd899e4f3 leds: implement sysfs interface locking mechanism 
Add a mechanism for locking LED subsystem sysfs interface.
This patch prepares ground for addition of LED Flash Class
extension, whose API will be integrated with V4L2 Flash API.
Such a fusion enforces introducing a locking scheme, which
will secure consistent access to the LED Flash Class device.

The mechanism being introduced allows for disabling LED
subsystem sysfs interface by calling led_sysfs_disable function
and enabling it by calling led_sysfs_enable. The functions
alter the LED_SYSFS_DISABLE flag state and must be called
under mutex lock. The state of the lock is checked with use
of led_sysfs_is_disabled function. Such a design allows for
providing immediate feedback to the user space on whether
the LED Flash Class device is available or is under V4L2 Flash
sub-device control.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
2014-11-14 14:29:35 -08:00
..
trigger leds: trigger: gpio: fix warning in gpio trigger for gpios whose accessor function may sleep 2014-09-11 16:57:51 -07:00
dell-led.c dell-led: add mic mute led interface 2014-05-08 14:28:07 +08:00
Kconfig New driver for menf21bmc. 2014-10-10 16:40:14 -04:00
led-class.c leds: implement sysfs interface locking mechanism 2014-11-14 14:29:35 -08:00
led-core.c leds: implement sysfs interface locking mechanism 2014-11-14 14:29:35 -08:00
led-triggers.c leds: implement sysfs interface locking mechanism 2014-11-14 14:29:35 -08:00
leds-88pm860x.c leds: 88pm860x: Fix missing refcount decrement for parent of_node 2014-05-08 14:28:08 +08:00
leds-adp5520.c leds: Remove duplicated OOM message for individual driver 2014-05-08 14:28:08 +08:00
leds-asic3.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-bd2802.c leds: Remove duplicated OOM message for individual driver 2014-05-08 14:28:08 +08:00
leds-blinkm.c leds: blinkm: remove unnecessary spaces 2014-02-27 10:19:57 -08:00
leds-clevo-mail.c leds: clevo-mail: Make probe function __init 2014-03-13 15:53:31 -07:00
leds-cobalt-qube.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-cobalt-raq.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2012-12-15 12:52:42 -08:00
leds-da903x.c leds: Remove duplicated OOM message for individual driver 2014-05-08 14:28:08 +08:00
leds-da9052.c leds: Remove duplicated OOM message for individual driver 2014-05-08 14:28:08 +08:00
leds-dac124s085.c leds: dac124s085: Remove redundant spi_set_drvdata 2013-10-22 10:57:34 -07:00
leds-fsg.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-gpio-register.c led: gpio: Fix possible ZERO_SIZE_PTR pointer dereferencing error. 2014-09-29 10:21:01 -07:00
leds-gpio.c leds: gpio: cleanup the leds-gpio driver 2014-09-29 10:22:26 -07:00
leds-hp6xx.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-ipaq-micro.c leds: ipaq-micro: fix sparse non static symbol warning 2014-07-29 10:57:20 -07:00
leds-lm355x.c leds: lm355x: fix attribute-creation race 2014-06-25 15:10:54 -07:00
leds-lm3530.c leds: lm3550: fix attribute-creation race 2014-06-25 15:00:55 -07:00
leds-lm3533.c leds: lm3533: fix attribute-creation race 2014-06-25 15:02:31 -07:00
leds-lm3642.c leds: lm3642: fix attribute-creation race 2014-06-25 15:13:08 -07:00
leds-locomo.c drivers/leds: Add module.h to files using it implicitly 2011-10-31 19:31:49 -04:00
leds-lp55xx-common.c leds: lp55xx-common: fix attribute-creation race 2014-06-27 13:44:05 -07:00
leds-lp55xx-common.h leds: lp55xx: add common macros for device attributes 2013-08-26 17:22:12 -07:00
leds-lp3944.c leds: lp3944: fix sparse warning 2014-09-11 16:55:27 -07:00
leds-lp5521.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-lp5523.c leds: lp55xx: add DT bindings for LP55231 2014-05-08 14:28:08 +08:00
leds-lp5562.c leds: lp5562: remove unnecessary parentheses 2014-02-27 10:17:15 -08:00
leds-lp8501.c lp5523, lp8501: comment improvements 2014-01-10 11:44:44 +01:00
leds-lp8788.c leds-lp8788: fix a parent device in _probe() 2013-02-01 17:47:05 -08:00
leds-lt3593.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-max8997.c leds: max8997: fix attribute-creation race 2014-06-25 15:24:03 -07:00
leds-mc13783.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-menf21bmc.c leds: leds-menf21bmc: Introduce MEN 14F021P00 BMC LED driver 2014-09-24 15:36:30 +01:00
leds-net48xx.c leds: leds-net48xx: Use linux/io.h instead of asm/io.h 2012-11-27 14:49:28 -08:00
leds-netxbig.c leds: netxbig: fix attribute-creation race 2014-06-25 15:27:37 -07:00
leds-ns2.c leds: ns2: fix attribute-creation race 2014-06-25 15:32:11 -07:00
leds-ot200.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-pca955x.c leds: use dev_get_platdata() 2013-08-26 17:22:11 -07:00
leds-pca963x.c leds:pca963x: Always initialize MODE2 register 2014-07-03 11:55:56 -07:00
leds-pca9532.c driver:gpio remove all usage of gpio_remove retval in driver 2014-09-18 11:03:10 -07:00
leds-pwm.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2014-06-12 13:08:09 -07:00
leds-rb532.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2012-12-15 12:52:42 -08:00
leds-regulator.c leds: regulator: Convert to devm_regulator_get_exclusive 2014-11-14 14:29:34 -08:00
leds-s3c24xx.c leds: Remove duplicated OOM message for individual driver 2014-05-08 14:28:08 +08:00
leds-ss4200.c leds: ss4200: fix attribute-creation race 2014-06-25 15:34:24 -07:00
leds-sunfire.c leds: Remove duplicated OOM message for individual driver 2014-05-08 14:28:08 +08:00
leds-syscon.c leds: syscon: handle multiple syscon instances 2014-11-14 14:29:35 -08:00
leds-tca6507.c driver:gpio remove all usage of gpio_remove retval in driver 2014-09-18 11:03:10 -07:00
leds-versatile.c ARM/leds: move ARM Versatile LED driver to leds subsystem 2014-03-28 10:54:15 +01:00
leds-wm831x-status.c leds: wm831x-status: fix attribute-creation race 2014-06-25 15:35:11 -07:00
leds-wm8350.c drivers/leds: delete non-required instances of include <linux/init.h> 2014-02-27 09:56:56 -08:00
leds-wrap.c leds: leds-wrap: Use <linux/io.h> instead of <asm/io.h> 2012-11-27 14:49:30 -08:00
leds.h leds: delay led_set_brightness if stopping soft-blink 2012-09-11 18:32:40 +08:00
Makefile New driver for menf21bmc. 2014-10-10 16:40:14 -04:00