xref: /linux/drivers/video/backlight/Kconfig (revision 42796d37da6ef4fd851dc6d5d0387baf7e2b0c3c)

#
# Backlight & LCD drivers configuration
#

menuconfig BACKLIGHT_LCD_SUPPORT
	bool "Backlight & LCD device support"
	help
	  Enable this to be able to choose the drivers for controlling the
	  backlight and the LCD panel on some platforms, for example on PDAs.

#
# LCD
#
config LCD_CLASS_DEVICE
        tristate "Lowlevel LCD controls"
	depends on BACKLIGHT_LCD_SUPPORT
	default m
	help
	  This framework adds support for low-level control of LCD.
	  Some framebuffer devices connect to platform-specific LCD modules
	  in order to have a platform-specific way to control the flat panel
	  (contrast and applying power to the LCD (not to the backlight!)).

	  To have support for your specific LCD panel you will have to
	  select the proper drivers which depend on this option.

config LCD_LTV350QV
	tristate "Samsung LTV350QV LCD Panel"
	depends on LCD_CLASS_DEVICE && SPI_MASTER
	default n
	help
	  If you have a Samsung LTV350QV LCD panel, say y to include a
	  power control driver for it.  The panel starts up in power
	  off state, so you need this driver in order to see any
	  output.

	  The LTV350QV panel is present on all ATSTK1000 boards.

#
# Backlight
#
config BACKLIGHT_CLASS_DEVICE
        tristate "Lowlevel Backlight controls"
	depends on BACKLIGHT_LCD_SUPPORT
	default m
	help
	  This framework adds support for low-level control of the LCD
          backlight. This includes support for brightness and power.

	  To have support for your specific LCD panel you will have to
	  select the proper drivers which depend on this option.

config BACKLIGHT_ATMEL_LCDC
	bool "Atmel LCDC Contrast-as-Backlight control"
	depends on BACKLIGHT_CLASS_DEVICE && FB_ATMEL
	default y if MACH_SAM9261EK || MACH_SAM9263EK
	help
	  This provides a backlight control internal to the Atmel LCDC
	  driver.  If the LCD "contrast control" on your board is wired
	  so it controls the backlight brightness, select this option to
	  export this as a PWM-based backlight control.

	  If in doubt, it's safe to enable this option; it doesn't kick
	  in unless the board's description says it's wired that way.

config BACKLIGHT_CORGI
	tristate "Generic (aka Sharp Corgi) Backlight Driver"
	depends on BACKLIGHT_CLASS_DEVICE
	default n
	help
	  Say y to enable the generic platform backlight driver previously
	  known as the Corgi backlight driver. If you have a Sharp Zaurus
	  SL-C7xx, SL-Cxx00 or SL-6000x say y. Most users can say n.

config BACKLIGHT_LOCOMO
	tristate "Sharp LOCOMO LCD/Backlight Driver"
	depends on BACKLIGHT_CLASS_DEVICE && SHARP_LOCOMO
	default y
	help
	  If you have a Sharp Zaurus SL-5500 (Collie) or SL-5600 (Poodle) say y to
	  enable the LCD/backlight driver.

config BACKLIGHT_OMAP1
	tristate "OMAP1 PWL-based LCD Backlight"
	depends on BACKLIGHT_CLASS_DEVICE && ARCH_OMAP1
	default y
	help
	  This driver controls the LCD backlight level and power for
	  the PWL module of OMAP1 processors.  Say Y if your board
	  uses this hardware.

config BACKLIGHT_HP680
	tristate "HP Jornada 680 Backlight Driver"
	depends on BACKLIGHT_CLASS_DEVICE && SH_HP6XX
	default y
	help
	  If you have a HP Jornada 680, say y to enable the
	  backlight driver.

config BACKLIGHT_PROGEAR
	tristate "Frontpath ProGear Backlight Driver"
	depends on BACKLIGHT_CLASS_DEVICE && PCI && X86
	default n
	help
	  If you have a Frontpath ProGear say Y to enable the
	  backlight driver.

config BACKLIGHT_CARILLO_RANCH
	tristate "Intel Carillo Ranch Backlight Driver"
	depends on BACKLIGHT_CLASS_DEVICE && LCD_CLASS_DEVICE && PCI && X86 && FB_LE80578
	default n
	help
	  If you have a Intel LE80578 (Carillo Ranch) say Y to enable the
	  backlight driver.

config BACKLIGHT_PWM
	tristate "Generic PWM based Backlight Driver"
	depends on BACKLIGHT_CLASS_DEVICE && HAVE_PWM
	help
	  If you have a LCD backlight adjustable by PWM, say Y to enable
	  this driver.