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Date: Wed, 13 Dec 2006 15:32:09 +0000 (GMT)
From: James Simmons <jsimmons@...radead.org>
To: Andrew Morton <akpm@...l.org>
cc: Linux Fbdev development list
<linux-fbdev-devel@...ts.sourceforge.net>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] updated proper-backlight-selection-for-fbdev-drivers.patch
Signed-Off-By: James Simmons <jsimmons@....infradead.org>
Here is the updated patch for proper backlight selection.
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 4e83f01..39d8783 100644
--- 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
@@ -126,6 +133,9 @@ 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)
@@ -703,6 +713,7 @@ 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
@@ -731,8 +742,7 @@ 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.
@@ -740,9 +750,8 @@ 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
@@ -779,8 +788,7 @@ 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.
@@ -830,8 +838,6 @@ 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
@@ -1021,9 +1027,8 @@ 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
@@ -1053,8 +1058,7 @@ 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.
@@ -1074,6 +1078,7 @@ 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.
@@ -1085,8 +1090,7 @@ 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.
@@ -1097,6 +1101,7 @@ 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.
@@ -1135,8 +1140,7 @@ 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.
@@ -1150,8 +1154,6 @@ config FB_S3TRIO
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
@@ -1646,6 +1648,7 @@ config FB_VIRTUAL
the vfb_enable=1 option.
If unsure, say N.
+
if VT
source "drivers/video/console/Kconfig"
endif
@@ -1654,9 +1657,5 @@ if FB || SGI_NEWPORT_CONSOLE
source "drivers/video/logo/Kconfig"
endif
-if SYSFS
- source "drivers/video/backlight/Kconfig"
-endif
-
endmenu
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 3feddf8..d44b4f9 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -2215,7 +2215,7 @@ static int aty128fb_blank(int blank, struct fb_info *fb)
return 0;
#ifdef CONFIG_FB_ATY128_BACKLIGHT
- if (machine_is(powermac) && blank)
+ if (blank)
aty128_bl_set_power(fb, FB_BLANK_POWERDOWN);
#endif
@@ -2234,7 +2234,7 @@ static int aty128fb_blank(int blank, struct fb_info *fb)
}
#ifdef CONFIG_FB_ATY128_BACKLIGHT
- if (machine_is(powermac) && !blank)
+ if (!blank)
aty128_bl_set_power(fb, FB_BLANK_UNBLANK);
#endif
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 176f9b8..e379cbd 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2818,7 +2818,7 @@ static int atyfb_blank(int blank, struct fb_info *info)
return 0;
#ifdef CONFIG_FB_ATY_BACKLIGHT
- if (machine_is(powermac) && blank > FB_BLANK_NORMAL)
+ if (blank > FB_BLANK_NORMAL)
aty_bl_set_power(info, FB_BLANK_POWERDOWN);
#elif defined(CONFIG_FB_ATY_GENERIC_LCD)
if (par->lcd_table && blank > FB_BLANK_NORMAL &&
@@ -2850,7 +2850,7 @@ static int atyfb_blank(int blank, struct fb_info *info)
aty_st_le32(CRTC_GEN_CNTL, gen_cntl, par);
#ifdef CONFIG_FB_ATY_BACKLIGHT
- if (machine_is(powermac) && blank <= FB_BLANK_NORMAL)
+ if (blank <= FB_BLANK_NORMAL)
aty_bl_set_power(info, FB_BLANK_UNBLANK);
#elif defined(CONFIG_FB_ATY_GENERIC_LCD)
if (par->lcd_table && blank <= FB_BLANK_NORMAL &&
-
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