24 Mar, 2012

1 commit

  • THis driver supports TI LP8550/LP8551/LP8552/LP8553/LP8556 backlight
    devices.

    The brightness can be controlled by the I2C or PWM input. The lp855x
    driver provides both modes. For the PWM control, pwm-specific functions
    can be defined in the platform data. And some information can be read
    via the sysfs(lp855x device attributes).

    For details, please refer to Documentation/backlight/lp855x-driver.txt.

    [axel.lin@gmail.com: add missing mutex_unlock in lp855x_read_byte() error path]
    [axel.lin@gmail.com: check platform data in lp855x_probe()]
    [axel.lin@gmail.com: small cleanups]
    [dan.carpenter@oracle.com: silence a compiler warning]
    [axel.lin@gmail.com: use id->driver_data to differentiate lp855x chips]
    [akpm@linux-foundation.org: simplify boolean return expression]
    Signed-off-by: Milo(Woogyom) Kim
    Signed-off-by: Axel Lin
    Signed-off-by: Dan Carpenter
    Cc: Richard Purdie
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Kim, Milo