Hi, On Mon, Mar 20, 2017 at 11:21:04AM +0900, Milo Kim wrote: > This is consolidated driver which supports backlight devices below. > LM3532, LM3631, LM3632, LM3633, LM3695 and LM3697. > > Structure > --------- > It consists of two parts - core and data. > > Core part supports features below. > - Backlight subsystem control > - Channel configuration from DT properties > - Light dimming effect control: ramp up and down. > - LMU fault monitor notifier handling > - PWM brightness control > > Data part describes device specific data. > - Register value configuration for each LMU device > : initialization, channel configuration, control mode, enable and > brightness. > - PWM action configuration > - Light dimming effect table > - Option for LMU fault monitor support > > Macros for register data > ------------------------ > All LMU devices have 8-bit based registers. LMU_BL_REG() creates 24-bit > register value in data part. It consists of address, mask and value. > On the other hand, register value should be parsed when the driver > reads/writes data from/to I2C registers. Driver uses LMU_BL_GET_ADDR(), > LMU_BL_GET_MASK() and LMU_BL_GET_VAL() for this purpose. > > Data structure > -------------- > ti_lmu_bl: Backlight output channel data > ti_lmu_bl_chip: Backlight device data. One device can have multiple > backlight channel data. > ti_lmu_bl_reg: Backlight device register data > ti_lmu_bl_cfg: Backlight configuration data for each LMU device > > Cc: Rob Herring <robh...@kernel.org> > Cc: Sebastian Reichel <s...@kernel.org> > Cc: Tony Lindgren <t...@atomide.com> > Signed-off-by: Milo Kim <milo....@ti.com>
Works on Droid 4: Tested-by: Sebastian Reichel <s...@kernel.org> -- Sebastian
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