backlight: move register definitions from header to source

ROM boundary definitions do not need to be exported because these are
used only internally in the lp855x driver.

And few code cosmetic changes
Signed-off-by: NMilo(Woogyom) Kim <milo.kim@ti.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

drivers/video/backlight/lp855x_bl.c

@@ -17,8 +17,12 @@
 #include <linux/lp855x.h>
 
 /* Registers */
-#define BRIGHTNESS_CTRL		(0x00)
-#define DEVICE_CTRL		(0x01)
+#define BRIGHTNESS_CTRL		0x00
+#define DEVICE_CTRL		0x01
+#define EEPROM_START		0xA0
+#define EEPROM_END		0xA7
+#define EPROM_START		0xA0
+#define EPROM_END		0xAF
 
 #define BUF_SIZE		20
 #define DEFAULT_BL_NAME		"lcd-backlight"

include/linux/lp855x.h

@@ -47,12 +47,6 @@
 				(LP8556_I2C_ONLY << BRT_MODE_SHFT))
 #define LP8556_COMB2_CONFIG	(LP8556_COMBINED2 << BRT_MODE_SHFT)
 
-/* ROM area boundary */
-#define EEPROM_START	(0xA0)
-#define EEPROM_END	(0xA7)
-#define EPROM_START	(0xA0)
-#define EPROM_END	(0xAF)
-
 enum lp855x_chip_id {
 	LP8550,
 	LP8551,