backlight: add support for Sharp SL-6000 LCD and backlight drivers

On Sharp SL-6000 lcd/backlight is a bit complex, so add two drivers
one for lcd-driving chip, other one for dac regulating the backlight
LEDS.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index c72a135..10b701f 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -75,6 +75,15 @@
 	  This driver provides a platform-device registered LCD power
 	  control interface.
 
+config LCD_TOSA
+	tristate "Sharp SL-6000 LCD Driver"
+	depends on LCD_CLASS_DEVICE && SPI
+	depends on MACH_TOSA
+	default n
+	help
+	  If you have an Sharp SL-6000 Zaurus say Y to enable a driver
+	  for its LCD.
+
 #
 # Backlight
 #
@@ -179,3 +188,12 @@
          If you have an Apple Macbook Pro with Nvidia graphics hardware say Y
 	 to enable a driver for its backlight
 
+config BACKLIGHT_TOSA
+	tristate "Sharp SL-6000 Backlight Driver"
+	depends on BACKLIGHT_CLASS_DEVICE && I2C
+	depends on MACH_TOSA && LCD_TOSA
+	default n
+	help
+	  If you have an Sharp SL-6000 Zaurus say Y to enable a driver
+	  for its backlight
+