04 Oct, 2008
2 commits
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Check the return value of led_classdev_register and unregister all
registered devices, if registering one device fails. Also the dynamic
memory handling is totally bogus. You can't allocate multiple chunks via
kzalloc() and expect them to be in order later. I wonder how this ever
worked.Signed-off-by: Sven Wegener
Acked-by: Nate Case
Tested-by: Nate Case
Acked-by: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
On initialization, we first do the ioremap and then register the led devices.
On deinitialization, we do it in reverse order. This prevents someone calling
into the brightness_set functions with an invalid latch_address.Signed-off-by: Sven Wegener
Acked-by: Rod Whitby
Acked-by: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Aug, 2008
3 commits
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This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: Russell King
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Remove includes of asm/hardware.h in addition to asm/arch/hardware.h.
Then, since asm/hardware.h only exists to include asm/arch/hardware.h,
update everything to directly include asm/arch/hardware.h and remove
asm/hardware.h.Signed-off-by: Russell King
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There are 43 includes of asm/mach-types.h by files that don't
reference anything from that file. Remove these unnecessary
includes.Signed-off-by: Russell King
23 Jul, 2008
5 commits
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Make sure led->trigger is valid before calling trigger->activate
Signed-off-by: Dmitry Baryshkov
Signed-off-by: Andrew Morton
Signed-off-by: Richard Purdie -
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 -
Fixes the following sparse errors:
drivers/leds/leds-h1940.c:26:6: warning: symbol 'h1940_greenled_set' was not declared. Should it be static?
drivers/leds/leds-h1940.c:55:6: warning: symbol 'h1940_redled_set' was not declared. Should it be static?
drivers/leds/leds-h1940.c:85:6: warning: symbol 'h1940_blueled_set' was not declared. Should it be static?Signed-off-by: Ben Dooks
Signed-off-by: Richard Purdie -
Fix an unsigned value overflow in the error handling code in the
Atmel PWM driver.Signed-off-by: Li Zefan
Signed-off-by: Richard Purdie -
NXP pca9532 is a LED dimmer/controller attached to i2c bus. It allows
attaching upto 16 leds which can either be on, off or dimmed and/or blinked
with the two PWM modulators available.This driver is a "new-style" i2c driver that adheres to the driver model and
implements the led framework api. Since the leds connected to the driver are
platform specific, it is only useful when platform data is passed to the
driver to define what leds are connected to which pins.Signed-off-by: Riku Voipio
Signed-off-by: Andrew Morton
Signed-off-by: Richard Purdie
21 May, 2008
1 commit
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There is a race from when a device is created with device_create() and
then the drvdata is set with a call to dev_set_drvdata() in which a
sysfs file could be open, yet the drvdata will be NULL, causing all
sorts of bad things to happen.This patch fixes the problem by using the new function,
device_create_drvdata().Cc: Kay Sievers
Cc: Richard Purdie
Signed-off-by: Greg Kroah-Hartman
29 Apr, 2008
1 commit
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Some drivers have duplicated unlikely() macros. IS_ERR() already has
unlikely() in itself.This patch cleans up such pointless code.
Signed-off-by: Hirofumi Nakagawa
Acked-by: David S. Miller
Acked-by: Jeff Garzik
Cc: Paul Clements
Cc: Richard Purdie
Cc: Alessandro Zummo
Cc: David Brownell
Cc: James Bottomley
Cc: Michael Halcrow
Cc: Anton Altaparmakov
Cc: Al Viro
Cc: Carsten Otte
Cc: Patrick McHardy
Cc: Paul Mundt
Cc: Jaroslav Kysela
Cc: Takashi Iwai
Acked-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
25 Apr, 2008
7 commits
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Add a trigger which allows LEDs to default to the full
brightness state.Signed-off-by: Nick Forbes
Signed-off-by: Richard Purdie -
The LEDs on the Freecom FSG-3 are connected to an external
memory-mapped latch on the ixp4xx expansion bus, and therefore cannot
be supported by any of the existing LEDs drivers.Signed-off-by: Rod Whitby
Signed-off-by: Richard Purdie -
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 -
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 -
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 -
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 -
The leds-clevo-mail module also works with model "Clevo D400P",
add this model to the white list.Signed-off-by: Mrton Nmeth
Signed-off-by: Andrew Morton
Signed-off-by: Richard Purdie
24 Apr, 2008
1 commit
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* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
iwlwifi: Fix built-in compilation of iwlcore
net: Unexport move_addr_to_{kernel,user}
rt2x00: Select LEDS_CLASS.
iwlwifi: Select LEDS_CLASS.
leds: Do not guard NEW_LEDS with HAS_IOMEM
[IPSEC]: Fix catch-22 with algorithm IDs above 31
time: Export set_normalized_timespec.
tcp: Make use of before macro in tcp_input.c
hamradio: Remove unneeded and deprecated cli()/sti() calls in dmascc.c
[NETNS]: Remove empty ->init callback.
[DCCP]: Convert do_gettimeofday() to getnstimeofday().
[NETNS]: Don't initialize err variable twice.
[NETNS]: The ip6_fib_timer can work with garbage on net namespace stop.
[IPV4]: Convert do_gettimeofday() to getnstimeofday().
[IPV4]: Make icmp_sk_init() static.
[IPV6]: Make struct ip6_prohibit_entry_template static.
tcp: Trivial fix to correct function name in a comment in net/ipv4/tcp.c
[NET]: Expose netdevice dev_id through sysfs
skbuff: fix missing kernel-doc notation
[ROSE]: Fix soft lockup wrt. rose_node_list_lock
23 Apr, 2008
1 commit
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The LEDS infrastructure itself does not require anything
that a platform dependant upon HAS_IOMEM.The individual drivers do, but they are properly guarded
with the necessary platform dependencies.One can even imagine a hypervisor based LED driver that
a platform without HAS_IOMEM might have.Signed-off-by: David S. Miller
22 Apr, 2008
1 commit
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: (36 commits)
SCSI: convert struct class_device to struct device
DRM: remove unused dev_class
IB: rename "dev" to "srp_dev" in srp_host structure
IB: convert struct class_device to struct device
memstick: convert struct class_device to struct device
driver core: replace remaining __FUNCTION__ occurrences
sysfs: refill attribute buffer when reading from offset 0
PM: Remove destroy_suspended_device()
Firmware: add iSCSI iBFT Support
PM: Remove legacy PM (fix)
Kobject: Replace list_for_each() with list_for_each_entry().
SYSFS: Explicitly include required header file slab.h.
Driver core: make device_is_registered() work for class devices
PM: Convert wakeup flag accessors to inline functions
PM: Make wakeup flags available whenever CONFIG_PM is set
PM: Fix misuse of wakeup flag accessors in serial core
Driver core: Call device_pm_add() after bus_add_device() in device_add()
PM: Handle device registrations during suspend/resume
block: send disk "change" event for rescan_partitions()
sysdev: detect multiple driver registrations
...Fixed trivial conflict in include/linux/memory.h due to semaphore header
file change (made irrelevant by the change to mutex).
20 Apr, 2008
3 commits
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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
19 Apr, 2008
2 commits
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As now tosa uses leds-gpio, drop leds-tosa driver.
Signed-off-by: Dmitry Baryshkov
Signed-off-by: Russell King -
See f99ee0b99214cf5329e711859e3f5fd02c820a24
Signed-off-by: Russell King
16 Apr, 2008
1 commit
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Since 43cc71eed1250755986da4c0f9898f9a635cb3bf, the platform
modalias is prefixed with "platform:". Add MODULE_ALIAS() to the
hotpluggable platform LED drivers, to re-enable auto loading.[dbrownell@users.sourceforge.net: more drivers, registration fixes]
Signed-off-by: Kay Sievers
Signed-off-by: David Brownell
Acked-by: Richard Purdie
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
01 Apr, 2008
2 commits
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It appears that we can't just check to see if we're in a task
context ... so instead of trying that, just make the relevant
leds always schedule a little worklet.Signed-off-by: David Brownell
Signed-off-by: Richard Purdie -
Call gpio_cansleep only after gpio_request succeeded avoiding an
oops.Signed-off-by: Uwe Kleine-König
Acked-by: David Brownell
Signed-off-by: Richard Purdie
09 Feb, 2008
1 commit
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This is a LED driver using the PWM on newer SOCs from Atmel; brightness is
controlled by changing the PWM duty cycle. So for example if you've set up
two leds labeled "pwm0" and "pwm1":echo 0 > /sys/class/leds/pwm2/brightness # off (0%)
echo 80 > /sys/class/leds/pwm2/brightness
echo 255 > /sys/class/leds/pwm2/brightness # on (100%)Note that "brightness" here isn't linear; maybe that should change. Going
from 4 to 8 probably doubles perceived brightness, while 244 to 248 is
imperceptible.This is mostly intended to be a simple example of PWM, although it's
realistic since LCD backlights are often driven with PWM to conserve
battery power (and offer brightness options).Signed-off-by: David Brownell
Signed-off-by: Haavard Skinnemoen
Cc: Richard Purdie
Cc: Andrew Victor
Cc: Nicolas Ferre
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
07 Feb, 2008
8 commits
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Add support for the LEDs on the HP Jornada 620/660/680/690 devices.
Signed-off-by: Kristoffer Ericson
Signed-off-by: Richard Purdie -
All boards using the IXP4XX-GPIO-LED driver have been updated to use
the generic leds-gpio driver instead.Signed-off-by: Rod Whitby
Signed-off-by: Richard Purdie -
The 3rd LED on this board is something like a power-led, it is on all the
time. With this change to the leds-wrap driver it is possible to use this
LED too.Signed-off-by: Michael Loeffler
Signed-off-by: Richard Purdie -
When gpio_direction_output() is called, led_dat->active_low is used
as default value. This means that the led will always be off by
default. cdev.brightness should really have been set to LED_OFF
unconditionally to reflect this behavior.Signed-off-by: Raphael Assenat
Signed-off-by: Richard Purdie -
Add support for hardware accelerated LED blinking for the mail LED
commonly found on Clevo notebooks.Signed-off-by: Márton Németh
Signed-off-by: Richard Purdie -
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 -
As discussed on LKML some notion of 'function' is needed in
LED naming. This patch adds this to the documentation and
standardises existing LED drivers.Signed-off-by: Richard Purdie
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The driver supports the mail LED commonly found on different Clevo notebooks.
The driver access the LED through the i8042 hardware which is handled by
the input subsystem.Signed-off-by: Márton Németh
Signed-off-by: Richard Purdie
06 Feb, 2008
1 commit
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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