linux-toradex.git/drivers/leds/led-class.c, branch v3.6

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

Merge branch 'driver-core-next' into Linux 3.2

2012-01-06T19:42:52+00:00

This resolves the conflict in the arch/arm/mach-s3c64xx/s3c6400.c file,
and it fixes the build error in the arch/x86/kernel/microcode_core.c
file, that the merge did not catch.

The microcode_core.c patch was provided by Stephen Rothwell
 who was invaluable in the merge issues involved
with the large sysdev removal process in the driver-core tree.

Signed-off-by: Greg Kroah-Hartman

driver-core: remove sysdev.h usage.

2011-12-22T00:26:03+00:00

The sysdev.h file should not be needed by any in-kernel code, so remove
the .h file from these random files that seem to still want to include
it.

The sysdev code will be going away soon, so this include needs to be
removed no matter what.

Cc: Jiandong Zheng 
Cc: Scott Branden 
Cc: Russell King 
Cc: Kukjin Kim 
Cc: David Brown 
Cc: Daniel Walker 
Cc: Bryan Huntsman 
Cc: Ben Dooks 
Cc: Wan ZongShun 
Cc: Haavard Skinnemoen 
Cc: Hans-Christian Egtvedt 
Cc: Guan Xuetao 
Cc: "Venkatesh Pallipadi
Cc: Thomas Gleixner 
Cc: Ingo Molnar 
Cc: "H. Peter Anvin" 
Cc: Grant Likely 
Cc: Richard Purdie 
Cc: Matthew Garrett 
Signed-off-by: Kay Sievers

Revert "leds: save the delay values after a successful call to blink_set()"

2011-11-16T00:41:50+00:00

Revert commit 6123b0e274503a0d3588e84fbe07c9aa01bfaf5d.

The problem this patch intends to solve has alreadqy been fixed by
commit 7a5caabd090b ("drivers/leds/ledtrig-timer.c: fix broken sysfs
delay handling").

Signed-off-by: Johan Hovold 
Cc: Antonio Ospite 
Cc: Johannes Berg 
Cc: Richard Purdie 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

leds: turn the blink_timer off before starting to blink

2011-11-01T00:30:55+00:00

Depending on the implementation of the hardware blinking function in
blink_set(), the led can support hardware blinking for some values of
delay_on and delay_off and fall-back to software blinking for some other
values.

Turning off the blink_timer unconditionally before starting to blink
make sure that a sequence like:

  OFF
  hardware blinking
  software blinking
  hardware blinking

does not leave the software blinking timer active.

Signed-off-by: Antonio Ospite 
Reviewed-by: Johannes Berg 
Cc: Richard Purdie 
Cc: 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds