linux-toradex.git/drivers/leds/leds.h, branch v4.4.24

leds: core: Move LED core callbacks out of led-class.c

2015-11-03T07:59:22+00:00

Since the API for controlling LED brightness and blinking is defined in
the LED core, move the related timer and work callbacks to the led-core.c,
and initialize them through a new led_core_init API.

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

leds: unify the location of led-trigger API

2015-05-04T18:05:55+00:00

Part of led-trigger API was in the private drivers/leds/leds.h header.
Move it to the include/linux/leds.h header to unify the API location
and announce it as public. It has been already exported from
led-triggers.c with EXPORT_SYMBOL_GPL macro. The no-op definitions are
changed from macros to inline to match the style of the surrounding code.

Signed-off-by: Jacek Anaszewski 
Cc: Richard Purdie 
Acked-by: Sakari Ailus 
Signed-off-by: Bryan Wu

leds: Don't allow brightness values greater than max_brightness

2015-01-14T18:40:19+00:00

Since commit 4d71a4a12b13 ("leds: Add support for setting brightness in
a synchronous way") the value passed to brightness_set() is no longer
limited to max_brightness and can be different from the internally saved
brightness value.

Signed-off-by: Gabriele Mazzotta 
Signed-off-by: Bryan Wu

leds: Add support for setting brightness in a synchronous way

2014-11-14T22:29:35+00:00

There are use cases when setting a LED brightness has to
have immediate effect (e.g. setting a torch LED brightness).
This patch extends LED subsystem to support such operations.
The LED subsystem internal API __led_set_brightness is changed
to led_set_brightness_async and new led_set_brightness_sync API
is added.

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

leds: delay led_set_brightness if stopping soft-blink

2012-09-11T10:32:40+00:00

Delay execution of led_set_brightness() if need to stop soft-blink
timer.

This allows led_set_brightness to be called in hard-irq context even if
soft-blink was activated on that LED.

Signed-off-by: Fabio Baltieri 
Cc: Pawel Moll 
Signed-off-by: Bryan Wu

leds: Rename led_set_brightness() to __led_set_brightness()

2012-07-23T23:52:34+00:00

Rename leds internal interface led_set_brightness() to __led_set_brightness()
to reduce confusion between led_set_brightness() and the external interface
led_brightness_set(). led_brightness_set() cancels the timer and then calls
led_set_brightness().

Signed-off-by: Shuah Khan 
Signed-off-by: Bryan Wu

leds: support automatic start of blinking with ledtrig-timer

2011-05-25T15:39:49+00:00

By setting initial values blink_delay_on and blink_delay_off in a
led_classdev struct, this change starts the blinking when the led is
initialized.

With this patch, you can initialize blink_delay_on and blink_delay_off in
led_classdev with default_trigger set to "timer", and the led will start
up blinking.  The current ledtrig-timer implementation ignores any initial
blink_delay_on/blink_delay_off settings, and requires setting
blink_delay_on/blink_delay_off (typically from userspace) before the led
blinks.

Signed-off-by: Esben Haabendal 
Cc: Richard Purdie 
Cc: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

leds: allow led-drivers to use a variable range of brightness values

2009-04-06T15:06:25+00:00

This patch allows drivers to override the default maximum brightness value
of 255.  We take care to preserve backwards-compatibility as much as
possible, so that user-space ABI doesn't change for existing drivers.
LED trigger code has also been updated to use the per-LED maximum.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Richard Purdie

leds: Cleanup various whitespace and code style issues

2008-04-24T22:37:42+00:00

Break the lines which were more than 80 characters into more
lines; replace SPACEs with TABs; correct ident at switch-case;
change character encoding from ISO-8859-2 to UTF-8.

The order of the functions in led-triggers.c changed in order
the similar functions can still be together under titles
"Used by LED Class", "LED Trigger Interface" and "Simple
LED Tigger Interface" as was grouped before when exported
with EXPORT_SYMBOL.

Signed-off-by: Márton Németh 
Signed-off-by: Richard Purdie

leds: disable triggers on brightness set

2008-04-24T22:34:18+00:00

Disable any active triggers when the brightness attribute is
set to zero.

Signed-off-by: Henrique de Moraes Holschuh 
Signed-off-by: Márton Németh 
Signed-off-by: Richard Purdie