• Kim, Milo's avatar
    backlight: add new lp8788 backlight driver · c5a51053
    Kim, Milo authored
    TI LP8788 PMU supports regulators, battery charger, RTC, ADC, backlight
    dri= ver and current sinks.  This patch enables LP8788 backlight module.
    
    (Brightness mode)
    The brightness is controlled by PWM input or I2C register.
    All modes are supported in the driver.
    
    (Platform data)
    Configurable data can be defined in the platform side.
     name                  : backlight driver name. (default: "lcd-backlight")
     initial_brightness    : initial value of backlight brightness
     bl_mode               : brightness control by PWM or lp8788 register
     dim_mode              : dimming mode selection
     full_scale            : full scale current setting
     rise_time             : brightness ramp up step time
     fall_time             : brightness ramp down step time
     pwm_pol               : PWM polarity setting when bl_mode is PWM based
     period_ns             : platform specific PWM period value. unit is nano.
    
    The default values are set in case no platform data is defined.
    
    [akpm@linux-foundation.org: checkpatch fixes]
    Signed-off-by: default avatarMilo(Woogyom) Kim <milo.kim@ti.com>
    Cc: Richard Purdie <rpurdie@rpsys.net>
    Cc: Samuel Ortiz <sameo@linux.intel.com>
    Cc: Thierry Reding <thierry.reding@avionic-design.de>
    Cc: "devendra.aaru" <devendra.aaru@gmail.com>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
    c5a51053
Makefile 2.19 KB