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-Kernel driver lp855x
-====================
-
-Backlight driver for LP855x ICs
-
-Supported chips:
-	Texas Instruments LP8550, LP8551, LP8552, LP8553, LP8555, LP8556 and
-	LP8557
-
-Author: Milo(Woogyom) Kim <milo.kim@ti.com>
-
-Description
------------
-
-* Brightness control
-
-Brightness can be controlled by the pwm input or the i2c command.
-The lp855x driver supports both cases.
-
-* Device attributes
-
-1) bl_ctl_mode
-Backlight control mode.
-Value : pwm based or register based
-
-2) chip_id
-The lp855x chip id.
-Value : lp8550/lp8551/lp8552/lp8553/lp8555/lp8556/lp8557
-
-Platform data for lp855x
-------------------------
-
-For supporting platform specific data, the lp855x platform data can be used.
-
-* name : Backlight driver name. If it is not defined, default name is set.
-* device_control : Value of DEVICE CONTROL register.
-* initial_brightness : Initial value of backlight brightness.
-* period_ns : Platform specific PWM period value. unit is nano.
-	     Only valid when brightness is pwm input mode.
-* size_program : Total size of lp855x_rom_data.
-* rom_data : List of new eeprom/eprom registers.
-
-example 1) lp8552 platform data : i2c register mode with new eeprom data
-
-#define EEPROM_A5_ADDR	0xA5
-#define EEPROM_A5_VAL	0x4f	/* EN_VSYNC=0 */
-
-static struct lp855x_rom_data lp8552_eeprom_arr[] = {
-	{EEPROM_A5_ADDR, EEPROM_A5_VAL},
-};
-
-static struct lp855x_platform_data lp8552_pdata = {
-	.name = "lcd-bl",
-	.device_control = I2C_CONFIG(LP8552),
-	.initial_brightness = INITIAL_BRT,
-	.size_program = ARRAY_SIZE(lp8552_eeprom_arr),
-	.rom_data = lp8552_eeprom_arr,
-};
-
-example 2) lp8556 platform data : pwm input mode with default rom data
-
-static struct lp855x_platform_data lp8556_pdata = {
-	.device_control = PWM_CONFIG(LP8556),
-	.initial_brightness = INITIAL_BRT,
-	.period_ns = 1000000,
-};