Eric Lee / smarc-fsl-linux-kernel

02 Apr, 2013

1 commit

  • ff45262a8   leds: add new LP5562 LED driver ... Browse Code »

    LP5562 can drive up to 4 channels, RGB and White.
    LEDs can be controlled directly via the led class control interface.

    LP55xx common driver
    LP5562 is one of LP55xx family device, so LP55xx common code are used.
    On the other hand, chip specific configuration is defined in the structure
    'lp55xx_device_config'

    LED pattern data
    LP5562 has also internal program memory which is used for running various LED
    patterns. LP5562 driver supports the firmware interface and the predefined
    pattern data as well.

    LP5562 device attributes: 'led_pattern' and 'engine_mux'
    A 'led_pattern' is an index code which runs the predefined pattern data.
    And 'engine_mux' is updated with the firmware interface is activated.
    Detailed description has been updated in the documentation files,
    'leds-lp55xx.txt' and 'leds-lp5562.txt'.

    Changes on the header file
    LP5562 configurable definitions are added.
    Pattern RGB data is fixed as constant value.
    (No side effect on other devices, LP5521 or LP5523.)

    (cooloney@gmail.com: remove redundant mutex_unlock(). Reported by Dan
    Carpenter )

    Signed-off-by: Milo(Woogyom) Kim
    Signed-off-by: Bryan Wu

    Kim, Milo
     

07 Feb, 2013

1 commit

24 Jul, 2012

1 commit

  • 32abb4788   leds: Add LED driver for lm3556 chip ... Browse Code »

    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

    G.Shark Jeong
     

05 Apr, 2011

1 commit