Commit e0e34ef7 authored by James Simmons's avatar James Simmons Committed by Richard Purdie
Browse files

backlight: Improve backlight selection for fbdev drivers 



Improve backlight selection for fbdev drivers

Signed-off-by: default avatarJames Simmons <jsimmons@infradead.org>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarRichard Purdie <rpurdie@rpsys.net>
parent 37ce69a5

drivers/video/Kconfig

+36 −37
Original line number Diff line number Diff line
@@ -4,20 +4,9 @@ 


menu "Graphics support"



config FIRMWARE_EDID

       bool "Enable firmware EDID"

       default y

       ---help---

         This enables access to the EDID transferred from the firmware.

	 On the i386, this is from the Video BIOS. Enable this if DDC/I2C

	 transfers do not work for your driver and if you are using

	 nvidiafb, i810fb or savagefb.



	 In general, choosing Y for this option is safe.  If you

	 experience extremely long delays while booting before you get

	 something on your display, try setting this to N.  Matrox cards in

	 combination with certain motherboards and monitors are known to

	 suffer from this problem.

if SYSFS

	source "drivers/video/backlight/Kconfig"

endif



config FB

	tristate "Support for frame buffer devices"
@@ -53,9 +42,27 @@ config FB 
	  (e.g. an accelerated X server) and that are not frame buffer

	  device-aware may cause unexpected results. If unsure, say N.



config FIRMWARE_EDID

       bool "Enable firmware EDID"

       depends on FB

       default n

       ---help---

         This enables access to the EDID transferred from the firmware.

	 On the i386, this is from the Video BIOS. Enable this if DDC/I2C

	 transfers do not work for your driver and if you are using

	 nvidiafb, i810fb or savagefb.



	 In general, choosing Y for this option is safe.  If you

	 experience extremely long delays while booting before you get

	 something on your display, try setting this to N.  Matrox cards in

	 combination with certain motherboards and monitors are known to

	 suffer from this problem.



config FB_DDC

       tristate

       depends on FB && I2C && I2C_ALGOBIT

       depends on FB

       select I2C_ALGOBIT

       select I2C

       default n



config FB_CFB_FILLRECT
@@ -134,6 +141,9 @@ config FB_TILEBLITTING 
	 This is particularly important to one driver, matroxfb.  If

	 unsure, say N.



comment "Frambuffer hardware drivers"

	depends on FB



config FB_CIRRUS

	tristate "Cirrus Logic support"

	depends on FB && (ZORRO || PCI)
@@ -671,6 +681,7 @@ config FB_NVIDIA 
	depends on FB && PCI

	select I2C_ALGOBIT if FB_NVIDIA_I2C

	select I2C if FB_NVIDIA_I2C

	select FB_BACKLIGHT if FB_NVIDIA_BACKLIGHT

	select FB_MODE_HELPERS

	select FB_CFB_FILLRECT

	select FB_CFB_COPYAREA
@@ -699,8 +710,7 @@ config FB_NVIDIA_I2C 


config FB_NVIDIA_BACKLIGHT

	bool "Support for backlight control"

	depends on FB_NVIDIA && PMAC_BACKLIGHT

	select FB_BACKLIGHT

	depends on FB_NVIDIA

	default y

	help

	  Say Y here if you want to control the backlight of your display.
@@ -708,9 +718,8 @@ config FB_NVIDIA_BACKLIGHT 
config FB_RIVA

	tristate "nVidia Riva support"

	depends on FB && PCI

	select I2C_ALGOBIT if FB_RIVA_I2C

	select I2C if FB_RIVA_I2C

	select FB_DDC if FB_RIVA_I2C

	select FB_BACKLIGHT if FB_RIVA_BACKLIGHT

	select FB_MODE_HELPERS

	select FB_CFB_FILLRECT

	select FB_CFB_COPYAREA
@@ -747,8 +756,7 @@ config FB_RIVA_DEBUG 


config FB_RIVA_BACKLIGHT

	bool "Support for backlight control"

	depends on FB_RIVA && PMAC_BACKLIGHT

	select FB_BACKLIGHT

	depends on FB_RIVA

	default y

	help

	  Say Y here if you want to control the backlight of your display.
@@ -798,8 +806,6 @@ config FB_I810_GTF 
config FB_I810_I2C

	bool "Enable DDC Support"

	depends on FB_I810 && FB_I810_GTF

	select I2C

	select I2C_ALGOBIT

	select FB_DDC

	help
@@ -989,9 +995,8 @@ config FB_MATROX_MULTIHEAD 
config FB_RADEON

	tristate "ATI Radeon display support"

	depends on FB && PCI

	select I2C_ALGOBIT if FB_RADEON_I2C

	select I2C if FB_RADEON_I2C

	select FB_DDC if FB_RADEON_I2C

	select FB_BACKLIGHT if FB_RADEON_BACKLIGHT

	select FB_MODE_HELPERS

	select FB_CFB_FILLRECT

	select FB_CFB_COPYAREA
@@ -1021,8 +1026,7 @@ config FB_RADEON_I2C 


config FB_RADEON_BACKLIGHT

	bool "Support for backlight control"

	depends on FB_RADEON && PMAC_BACKLIGHT

	select FB_BACKLIGHT

	depends on FB_RADEON

	default y

	help

	  Say Y here if you want to control the backlight of your display.
@@ -1042,6 +1046,7 @@ config FB_ATY128 
	select FB_CFB_FILLRECT

	select FB_CFB_COPYAREA

	select FB_CFB_IMAGEBLIT

	select FB_BACKLIGHT if FB_ATY128_BACKLIGHT

	select FB_MACMODES if PPC_PMAC

	help

	  This driver supports graphics boards with the ATI Rage128 chips.
@@ -1053,8 +1058,7 @@ config FB_ATY128 


config FB_ATY128_BACKLIGHT

	bool "Support for backlight control"

	depends on FB_ATY128 && PMAC_BACKLIGHT

	select FB_BACKLIGHT

	depends on FB_ATY128

	default y

	help

	  Say Y here if you want to control the backlight of your display.
@@ -1065,6 +1069,7 @@ config FB_ATY 
	select FB_CFB_FILLRECT

	select FB_CFB_COPYAREA

	select FB_CFB_IMAGEBLIT

	select FB_BACKLIGHT if FB_ATY_BACKLIGHT

	select FB_MACMODES if PPC

	help

	  This driver supports graphics boards with the ATI Mach64 chips.
@@ -1103,8 +1108,7 @@ config FB_ATY_GX 


config FB_ATY_BACKLIGHT

	bool "Support for backlight control"

	depends on FB_ATY && PMAC_BACKLIGHT

	select FB_BACKLIGHT

	depends on FB_ATY

	default y

	help

	  Say Y here if you want to control the backlight of your display.
@@ -1123,8 +1127,6 @@ config FB_S3 
config FB_SAVAGE

	tristate "S3 Savage support"

	depends on FB && PCI && EXPERIMENTAL

	select I2C_ALGOBIT if FB_SAVAGE_I2C

	select I2C if FB_SAVAGE_I2C

	select FB_DDC if FB_SAVAGE_I2C

	select FB_MODE_HELPERS

	select FB_CFB_FILLRECT
@@ -1639,6 +1641,7 @@ config FB_VIRTUAL 
	  the vfb_enable=1 option.



	  If unsure, say N.



if VT

	source "drivers/video/console/Kconfig"

endif
@@ -1647,9 +1650,5 @@ if FB || SGI_NEWPORT_CONSOLE 
	source "drivers/video/logo/Kconfig"

endif



if SYSFS

	source "drivers/video/backlight/Kconfig"

endif



endmenu