linux.git/drivers/leds/led-class.c, branch v3.14

leds: convert class code to use dev_groups

2013-07-27T01:05:17+00:00

The dev_attrs field of struct class is going away soon, dev_groups
should be used instead.  This converts the led class code to use the
correct field.

Acked-by: Bryan Wu 
Cc: Richard Purdie 
Signed-off-by: Greg Kroah-Hartman

leds: Convert led class driver from legacy pm ops to dev_pm_ops

2013-06-21T00:36:45+00:00

Convert drivers/leds/led-class to use dev_pm_ops for power management and
remove Legacy PM ops hooks. With this change, led class registers
suspend/resume callbacks via class->pm (dev_pm_ops) instead of Legacy
class->suspend/resume. When __device_suspend() runs call-backs, it will
find class->pm ops for the led class.

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

leds: led-class: Fix checkpatch warning

2012-11-27T22:49:25+00:00

Fixes the following checkpatch warning:
WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...
FILE: leds/led-class.c:214:
	printk(KERN_DEBUG "Registered led device: %s\n",

Signed-off-by: Sachin Kamat 
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_brightness_set() to led_set_brightness()

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

Rename leds external interface led_brightness_set() to led_set_brightness().
This is the second phase of the change to reduce confusion between the
leds internal and external interfaces that set brightness. With this change,
now the external interface is led_set_brightness(). The first phase renamed
the internal interface led_set_brightness() to __led_set_brightness().
There are no changes to the interface implementations.

Signed-off-by: Shuah Khan 
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: add oneshot blink functions

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

Add two new functions, led_blink_set_oneshot and
led_trigger_blink_oneshot, to be used by triggers for one-shot blink of
led devices.

This is implemented extending the existing software-blink code, and uses
the same timer and handler function.

The behavior of the code is to do a blink-on, blink-off sequence when
the function is called, ignoring other calls until the sequence is
completed so that the leds keep blinking at constant rate if the
functions are called repeatedly.

This is meant to be used by drivers which needs to trigger on sporadic
event, but doesn't have clear busy/idle trigger points.

After the blink sequence the led remains off. This behavior can be
inverted setting the "invert" argument, which blink the led off, than on
and leave the led on after the sequence.

(bryan.wu@canonical.com: rebase to commit 'leds: don't disable blinking
when writing the same value to delay_on or delay_off')

Signed-off-by: Fabio Baltieri 
Acked-by: Shuah Khan 
Signed-off-by: Bryan Wu

leds: fixed a coding style issue.

2012-06-12T02:56:24+00:00

Fixed a coding style issue relating to trailing
white space error found by checkpatch.pl tool in drivers/leds/led-class.c

Signed-off-by: Jeffrin Jose 
Signed-off-by: Bryan Wu

leds: simple_strtoul() cleanup

2012-05-29T23:22:31+00:00

led-class.c and ledtrig-timer.c still use simple_strtoul().  Change them
to use kstrtoul() instead of obsolete simple_strtoul().

Also fix the existing int ret declaration to be ssize_t to match the
return type for _store functions in ledtrig-timer.c.

Signed-off-by: Shuah Khan 
Cc: Joe Perches 
Cc: Richard Purdie 
Cc: Bryan Wu 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

led-class: change back LEDS_CLASS to tristate instead of bool

2012-03-23T23:58:35+00:00

After moving some core functions to led-core.c, led-class.c can be built
as module again.

Signed-off-by: Bryan Wu 
Acked-by: Richard Purdie 
Acked-by: Linus Walleij 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds