linux.git/drivers/leds/trigger, branch v4.7-rc2

leds: triggers: Allow to switch the trigger to "panic" on a kernel panic

2016-05-06T08:22:09+00:00

This commit adds a new led_cdev flag LED_PANIC_INDICATOR, which
allows to mark a specific LED to be switched to the "panic"
trigger, on a kernel panic.

This is useful to allow the user to assign a regular trigger
to a given LED, and still blink that LED on a kernel panic.

Signed-off-by: Ezequiel Garcia 
Reviewed-by: Matthias Brugger 
Acked-by: Pavel Machek 
Signed-off-by: Jacek Anaszewski

leds: ledtrig-ide-disk: Move ide_blink_delay to ledtrig_ide_activity()

2016-04-19T06:57:16+00:00

Parameters delay_on and delay_off of led_trigger_blink_oneshot()
are pointers, to enable blink interval adjustment by LED class drivers
of the controllers that implement hardware blinking.

Move ide_blink_delay variable to ledtrig_ide_activity() in order to
prevent the situation when adjustment committed by one LED class
driver influences blink interval of the software fallback blink feature,
that is applied to the drivers that don't implement blink_set op.

Reviewed-by: Boris Brezillon 
Signed-off-by: Jacek Anaszewski

leds: trigger: Introduce a MTD (NAND/NOR) trigger

2016-04-13T08:23:14+00:00

This commit introduces a MTD trigger for flash (NAND/NOR) device
activity. The implementation is copied from IDE disk.

This trigger deprecates the "nand-disk" LED trigger, but for backwards
compatibility, we still keep the "nand-disk" trigger around.

The motivation for deprecating the "nand-disk" LED trigger is that
it only works for NAND drivers, whereas the "mtd" LED trigger
is more generic (in fact, "nand-disk" currently only works for
certain NAND drivers).

Signed-off-by: Ezequiel Garcia 
Acked-by: Boris Brezillon 
Signed-off-by: Jacek Anaszewski

leds: trigger: Introduce a kernel panic LED trigger

2016-03-30T09:16:39+00:00

This commit introduces a new LED trigger which allows to configure
a LED to blink on a kernel panic (through panic_blink).

Notice that currently the Openmoko FreeRunner (GTA02) mach code
sets panic_blink to blink a hard-coded LED. The new trigger is
meant to introduce a generic mechanism to achieve this.

Signed-off-by: Ezequiel Garcia 
Signed-off-by: Jacek Anaszewski

leds: ledtrig-ide-disk: Make the driver explicitly non-modular

2016-01-04T08:57:39+00:00

The Kconfig for this driver is currently:

config LEDS_TRIGGER_IDE_DISK
        bool "LED IDE Disk Trigger"

...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Bryan Wu 
Cc: Richard Purdie 
Cc: linux-leds@vger.kernel.org
Signed-off-by: Paul Gortmaker 
Signed-off-by: Jacek Anaszewski

leds: ledtrig-cpu: Make the driver explicitly non-modular

2016-01-04T08:57:39+00:00

The Kconfig for this driver is currently:

config LEDS_TRIGGER_CPU
        bool "LED CPU Trigger"

...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.

Since module_init translates to device_initcall in the non-modular
case, the init ordering remains unchanged with this commit.

We also delete the MODULE_LICENSE tag etc. since all that information
is already contained at the top of the file in the comments.

Cc: Bryan Wu 
Cc: Richard Purdie 
Cc: linux-leds@vger.kernel.org
Signed-off-by: Paul Gortmaker 
Acked-by: Linus Walleij 
Signed-off-by: Jacek Anaszewski

leds: triggers: oneshot: fix module license specification

2016-01-04T08:57:36+00:00

The header of this file fixes the license to GPL 2 only without the
option to use later version. So use the string "GPL v2" that is to be
used in this case.

Signed-off-by: Uwe Kleine-König 
Acked-by: Fabio Baltieri 
Signed-off-by: Jacek Anaszewski

leds: ledtrig-transient: fix duration to be msec instead of jiffies

2016-01-04T08:57:36+00:00

The transient trigger duration is documented to be in msec units, but is
actually in jiffies units. Other time based triggers are in msec units
as well. Fix the timer setup to convert from msec.

This could break an existing userspace that worked around this problem,
but exposing jiffies to userspace is just wrong and would break anyway
if HZ is changed.

Signed-off-by: Rob Herring 
Cc: Shuah Khan 
Cc: Richard Purdie 
Cc: linux-leds@vger.kernel.org
Signed-off-by: Jacek Anaszewski

leds: core: Add led_set_brightness_nosleep{nopm} functions

2016-01-04T08:57:30+00:00

This patch adds led_set_brightness_nosleep() and led_set_brightness_nopm()
functions, that guarantee setting LED brightness in a non-blocking way.
The latter is used from pm_ops context and doesn't modify the brightness
cached in the struct led_classdev. Its execution always ends up with
a call to brightness setting op - either directly or through
a set_brightness_work, regardless of LED_SUSPENDED flag state.

The patch also replaces led_set_brightness_async() with
led_set_brightness_nosleep() in all places where the most vital was setting
brightness in a non sleeping way but not necessarily asynchronously, which
is not needed for non-blocking drivers.

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

leds: triggers: add invert to heartbeat

2015-11-03T07:59:23+00:00

This patch adds possibility to invert heartbeat blinking.
The inverted LED is more time ON then OFF. It's because it looks
better when the heartbeat LED is next to other LED which is most
time ON. The invert value is exported same way via sysfs in file
invert like oneshot. I get inspiration from this trigger.

Signed-off-by: Jiri Prchal 
Signed-off-by: Jacek Anaszewski