backlight: Improve backlight selection for fbdev drivers

Improve backlight selection for fbdev drivers

Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>

diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 8874cf2..cd2ef0a 100644 (file)
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -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