user/sven/linux.git/Documentation/leds, branch v3.6.3

LEDS: add BlinkM RGB LED driver, documentation and update MAINTAINERS

2012-07-24T08:00:51Z

Add driver for BlinkM device to drivers/leds/. Add entry to MAINTAINERS file. Add documentation in Documentation/leds/. A BlinkM is a RGB LED controlled through I2C. This driver implements an interface to the LED framework and another sysfs group to access the internal options of the BlinkM. rev6: Use module_i2c_driver(). rev5: Removed own workqueue in favor of events wq. rev4: Fixed comments by Bryan Wu. rev3: Fixed issues found by Jonathan Neuschäfer. (bryan.wu@canonical.com: remove 2 trailing whitespace) Signed-off-by: Jan-Simon Möller Signed-off-by: Bryan Wu

leds: Add LED driver for lm3556 chip

2012-07-23T23:52:35Z

LM3556 : The LM3556 is a 4 MHz fixed-frequency synchronous boost converter plus 1.5A constant current driver for a high-current white LED. Datasheet: www.national.com/ds/LM/LM3556.pdf Tested on OMAP4430 (bryan.wu@canonical.com: use module_i2c_driver() rather than lm3556_init/lm3556_exit for code simplicity; fixed some typo pointed out by Rob Landley) Signed-off-by: G.Shark Jeong Reviewed-by: Axel Lin Reviewed-by: Kim, Milo Acked-by: Rob Landley Signed-off-by: Bryan Wu

leds: add oneshot trigger

2012-07-23T23:52:34Z

Add oneshot trigger to blink a led with configurale parameters via sysfs. Signed-off-by: Fabio Baltieri Cc: Shuah Khan Signed-off-by: Bryan Wu

leds: add new transient trigger for one shot timer activation

2012-05-29T23:22:32Z

The leds timer trigger does not currently have an interface to activate a one shot timer. The current support allows for setting two timers, one for specifying how long a state to be on, and the second for how long the state to be off. The delay_on value specifies the time period an LED should stay in on state, followed by a delay_off value that specifies how long the LED should stay in off state. The on and off cycle repeats until the trigger gets deactivated. There is no provision for one time activation to implement features that require an on or off state to be held just once and then stay in the original state forever. Without one shot timer interface, user space can still use timer trigger to set a timer to hold a state, however when user space application crashes or goes away without deactivating the timer, the hardware will be left in that state permanently. As a specific example of this use-case, let's look at vibrate feature on phones. Vibrate function on phones is implemented using PWM pins on SoC or PMIC. There is a need to activate one shot timer to control the vibrate feature, to prevent user space crashes leaving the phone in vibrate mode permanently causing the battery to drain. This trigger exports three properties, activate, state, and duration When transient trigger is activated these properties are set to default values. - duration allows setting timer value in msecs. The initial value is 0. - activate allows activating and deactivating the timer specified by duration as needed. The initial and default value is 0. This will allow duration to be set after trigger activation. - state allows user to specify a transient state to be held for the specified duration. Signed-off-by: Shuah Khan Cc: Jonas Bonn Cc: Richard Purdie Cc: NeilBrown Cc: Bryan Wu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/leds/leds-lp5521.c: support led pattern data

2012-03-23T23:58:34Z

The lp5521 has autonomous operation mode without external control. Using lp5521_platform_data, various led patterns can be configurable. For supporting this feature, new functions and device attribute are added. Structure of lp5521_led_pattern: 3 channels are supported - red, green and blue. Pattern(s) of each channel and numbers of pattern(s) are defined in the pla= tform data. Pattern data are hexa codes which include pattern commands such like set pwm, wait, ramp up/down, branch and so on. Pattern mode functions: * lp5521_clear_program_memory Before running new led pattern, program memory should be cleared. * lp5521_write_program_memory Pattern data updated in the program memory via the i2c. * lp5521_get_pattern Get pattern from predefined in the platform data. * lp5521_run_led_pattern Stop current pattern or run new pattern. Transition time is required between different operation mode. Device attribute - 'led_pattern': To load specific led pattern, new device attribute is added. When the lp5521 driver is unloaded, stop current led pattern mode. Documentation updated : description about how to define the led patterns and example. [akpm@linux-foundation.org: checkpatch fixes] Signed-off-by: Milo(Woogyom) Kim Acked-by: Linus Walleij Cc: Arun MURTHY Cc: Srinidhi Kasagar Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/leds/leds-lp5521.c: add 'update_config' in the lp5521_platform_data

2012-03-23T23:58:34Z

The value of CONFIG register(Addr 08h) is configurable. For supporting this feature, update_config is added in the platform data. If 'update_config' is not defined, the default value is 'LP5521_PWRSAVE_EN | LP5521_CP_MODE_AUTO | LP5521_R_TO_BATT'. To define CONFIG register in the platform data, the bit definitions were mo= ved to the header file. Documentation updated : description about 'update_config' and example. Signed-off-by: Milo(Woogyom) Kim Acked-by: Linus Walleij Cc: Arun MURTHY Cc: Srinidhi Kasagar Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

drivers/leds/leds-lp5521.c: add 'name' in the lp5521_led_config

2012-03-23T23:58:34Z

The name of each led channel can be configurable. For the compatibility, the name is set to default value(xx:channelN) when 'name' is not defined. Signed-off-by: Milo(Woogyom) Kim Acked-by: Linus Walleij Cc: Arun MURTHY Cc: Srinidhi Kasagar Cc: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

Documentation: fix leds-class.txt duplicated word

2011-11-04T19:01:48Z

Fix a typo (duplicated word) in Documentation/leds/leds-class.txt Signed-off-by: Bryan Wu Acked-by: Richard Purdie Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds

Documentation: consolidate leds files to leds/ subdir

2011-04-05T00:51:47Z

leds: move leds-class documentation under the leds/ subdir. Add also a leds/00-INDEX file describing the files under leds/ Signed-off-by: Antonio Ospite Acked-by: Richard Purdie Cc: Andrew Morton Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds

Documentation: led drivers lp5521 and lp5523

2010-11-12T15:55:32Z

Create sub directory Documentation/leds and add short documentation for LP5521 and LP5523 drivers. Signed-off-by: Samu Onkalo Cc: Richard Purdie Cc: Jean Delvare Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds