28 Feb, 2014

2 commits


23 Oct, 2013

1 commit


27 Aug, 2013

2 commits


21 Jun, 2013

2 commits


02 Apr, 2013

2 commits

  • Now LP55xx provides automatic clock detection API, lp55xx_is_extclk_used().
    The clock configuration can be done by the driver itself.

    (a) Concept
    The default value is set by each driver with clock selection.
    The internal clock selection bit is updated in case that the external clock
    is not detected or clock rate is not 32KHz.

    (b) Change on LP55xx platform data
    The clock configuration is done automatically, so no need to define
    'update_config' in the platform side.
    Correlated information are removed in the documentations and header.

    (c) Definitions moved from header to driver files
    CONFIG register values are moved each driver, LP5521 and LP5562.
    Not necessary definitions are removed also.

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

    Kim, Milo
     
  • 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