linux-toradex.git/include/linux/leds.h, branch v2.6.27.39

leds: Add support for Philips PCA955x I2C LED drivers

2008-07-23T08:49:56+00:00

This driver supports the PCA9550, PCA9551, PCA9552, and PCA9553
LED driver chips.

Signed-off-by: Nate Case 
Signed-off-by: Andrew Morton 
Signed-off-by: Richard Purdie

leds: mark led_classdev.default_trigger as const

2008-07-23T08:49:56+00:00

LED classdev core doesn't modify memory pointed by the default_trigger,
so mark it as const and we'll able to pass const char *s without getting
compiler warnings.

Signed-off-by: Anton Vorontsov 
Signed-off-by: Richard Purdie

leds: Document the context brightness_set needs

2008-04-24T22:49:30+00:00

Make sure there is no confusion about the contexts brightness_set
can be called under by documenting it.

Signed-off-by: Richard Purdie

leds: Add support to leds with readable status

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

Some led hardware allows drivers to query the led state, and this patch
adds a hook to let the led class take advantage of that information when
available.

Without this functionality, when access to the led hardware is not
exclusive (i.e. firmware or hardware might change its state behind the
kernel's back), reality goes out of sync with the led class' idea of what
the led is doing, which is annoying at best.

Behaviour for drivers that do not or cannot read the led status is
unchanged.

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

leds: enable support for blink_set() platform hook in leds-gpio

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

Enhance leds-gpio to provide hardware-based led flashing by passing
through the blink_set() call to a optionally set platform-specific
function pointer.

Signed-off-by: Herbert Valerio Riedel 
Signed-off-by: Richard Purdie

PM: Remove destroy_suspended_device()

2008-04-20T02:10:28+00:00

After 2.6.24 there was a plan to make the PM core acquire all device
semaphores during a suspend/hibernation to protect itself from
concurrent operations involving device objects.  That proved to be
too heavy-handed and we found a better way to achieve the goal, but
before it happened, we had introduced the functions
device_pm_schedule_removal() and destroy_suspended_device() to allow
drivers to "safely" destroy a suspended device and we had adapted some
drivers to use them.  Now that these functions are no longer necessary,
it seems reasonable to remove them and modify their users to use the
normal device unregistration instead.

Signed-off-by: Rafael J. Wysocki 
Acked-by: Pavel Machek 
Signed-off-by: Greg Kroah-Hartman

leds: Add support for hardware accelerated LED flashing

2008-02-07T09:49:38+00:00

Extends the leds subsystem with a blink_set() callback function which can
be optionally implemented by a LED driver. If implemented, the driver can use
the hardware acceleration for blinking a LED.

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

leds: add possibility to remove leds classdevs during suspend/resume

2008-02-05T17:44:23+00:00

Make it possible to unregister a led classdev object in a safe way during a
suspend/resume cycle.

Signed-off-by: Rafael J. Wysocki 
Cc: Michael Buesch 
Cc: Pavel Machek 
Cc: "John W. Linville" 
Cc: Alan Stern 
Cc: Len Brown 
Cc: Greg KH 
Cc: Kay Sievers 
Cc: Richard Purdie 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

leds: Fix led trigger locking bugs

2007-12-07T09:06:53+00:00

Convert part of the led trigger core from rw spinlocks to rw
semaphores. We're calling functions which can sleep from invalid
contexts otherwise. Fixes bug #9264.

Signed-off-by: Richard Purdie

leds: Add missing include for leds.h

2007-09-11T21:24:45+00:00

This patch has added #include  to include/linux/leds.h
for rwlock_t.

Signed-off-by: Yoichi Yuasa 
Signed-off-by: Richard Purdie