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-Kernel driver for LP5562
-========================
-
-* TI LP5562 LED Driver
-
-Author: Milo(Woogyom) Kim <milo.kim@ti.com>
-
-Description
-
-  LP5562 can drive up to 4 channels. R/G/B and White.
-  LEDs can be controlled directly via the led class control interface.
-
-  All four channels can be also controlled using the engine micro programs.
-  LP5562 has the internal program memory for running various LED patterns.
-  For the details, please refer to 'firmware' section in leds-lp55xx.txt
-
-Device attribute: engine_mux
-
-  3 Engines are allocated in LP5562, but the number of channel is 4.
-  Therefore each channel should be mapped to the engine number.
-  Value : RGB or W
-
-  This attribute is used for programming LED data with the firmware interface.
-  Unlike the LP5521/LP5523/55231, LP5562 has unique feature for the engine mux,
-  so additional sysfs is required.
-
-  LED Map
-  Red   ... Engine 1 (fixed)
-  Green ... Engine 2 (fixed)
-  Blue  ... Engine 3 (fixed)
-  White ... Engine 1 or 2 or 3 (selective)
-
-How to load the program data using engine_mux
-
-  Before loading the LP5562 program data, engine_mux should be written between
-  the engine selection and loading the firmware.
-  Engine mux has two different mode, RGB and W.
-  RGB is used for loading RGB program data, W is used for W program data.
-
-  For example, run blinking green channel pattern,
-  echo 2 > /sys/bus/i2c/devices/xxxx/select_engine     # 2 is for green channel
-  echo "RGB" > /sys/bus/i2c/devices/xxxx/engine_mux    # engine mux for RGB
-  echo 1 > /sys/class/firmware/lp5562/loading
-  echo "4000600040FF6000" > /sys/class/firmware/lp5562/data
-  echo 0 > /sys/class/firmware/lp5562/loading
-  echo 1 > /sys/bus/i2c/devices/xxxx/run_engine
-
-  To run a blinking white pattern,
-  echo 1 or 2 or 3 > /sys/bus/i2c/devices/xxxx/select_engine
-  echo "W" > /sys/bus/i2c/devices/xxxx/engine_mux
-  echo 1 > /sys/class/firmware/lp5562/loading
-  echo "4000600040FF6000" > /sys/class/firmware/lp5562/data
-  echo 0 > /sys/class/firmware/lp5562/loading
-  echo 1 > /sys/bus/i2c/devices/xxxx/run_engine
-
-How to load the predefined patterns
-
-  Please refer to 'leds-lp55xx.txt"
-
-Setting Current of Each Channel
-
-  Like LP5521 and LP5523/55231, LP5562 provides LED current settings.
-  The 'led_current' and 'max_current' are used.
-
-(Example of Platform data)
-
-To configure the platform specific data, lp55xx_platform_data structure is used.
-
-static struct lp55xx_led_config lp5562_led_config[] = {
-	{
-		.name 		= "R",
-		.chan_nr	= 0,
-		.led_current	= 20,
-		.max_current	= 40,
-	},
-	{
-		.name 		= "G",
-		.chan_nr	= 1,
-		.led_current	= 20,
-		.max_current	= 40,
-	},
-	{
-		.name 		= "B",
-		.chan_nr	= 2,
-		.led_current	= 20,
-		.max_current	= 40,
-	},
-	{
-		.name 		= "W",
-		.chan_nr	= 3,
-		.led_current	= 20,
-		.max_current	= 40,
-	},
-};
-
-static int lp5562_setup(void)
-{
-	/* setup HW resources */
-}
-
-static void lp5562_release(void)
-{
-	/* Release HW resources */
-}
-
-static void lp5562_enable(bool state)
-{
-	/* Control of chip enable signal */
-}
-
-static struct lp55xx_platform_data lp5562_platform_data = {
-        .led_config     = lp5562_led_config,
-        .num_channels   = ARRAY_SIZE(lp5562_led_config),
-        .setup_resources   = lp5562_setup,
-        .release_resources = lp5562_release,
-        .enable            = lp5562_enable,
-};
-
-If the current is set to 0 in the platform data, that channel is
-disabled and it is not visible in the sysfs.