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-rw-r--r--arch/i386/boot/video.S2
-rw-r--r--drivers/video/Kconfig16
-rw-r--r--drivers/video/fbmon.c6
3 files changed, 21 insertions, 3 deletions
diff --git a/arch/i386/boot/video.S b/arch/i386/boot/video.S
index 2ac40c8244c..0000a267453 100644
--- a/arch/i386/boot/video.S
+++ b/arch/i386/boot/video.S
@@ -1924,6 +1924,7 @@ skip10: movb %ah, %al
ret
store_edid:
+#ifdef CONFIG_FB_FIRMWARE_EDID
pushw %es # just save all registers
pushw %ax
pushw %bx
@@ -1954,6 +1955,7 @@ store_edid:
popw %bx
popw %ax
popw %es
+#endif
ret
# VIDEO_SELECT-only variables
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 3a890610ebe..22e9d696fdd 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -70,6 +70,22 @@ config FB_MACMODES
depends on FB
default n
+config FB_FIRMWARE_EDID
+ bool "Enable firmware EDID"
+ depends on FB
+ 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.
+
config FB_MODE_HELPERS
bool "Enable Video Mode Handling Helpers"
depends on FB
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index 7c74e7325d9..53beeb4a999 100644
--- a/drivers/video/fbmon.c
+++ b/drivers/video/fbmon.c
@@ -1281,7 +1281,7 @@ int fb_validate_mode(const struct fb_var_screeninfo *var, struct fb_info *info)
-EINVAL : 0;
}
-#if defined(__i386__)
+#if defined(CONFIG_FB_FIRMWARE_EDID) && defined(__i386__)
#include <linux/pci.h>
/*
@@ -1311,11 +1311,11 @@ const unsigned char *fb_firmware_edid(struct device *device)
{
return NULL;
}
-#endif /* _i386_ */
+#endif
+EXPORT_SYMBOL(fb_firmware_edid);
EXPORT_SYMBOL(fb_parse_edid);
EXPORT_SYMBOL(fb_edid_to_monspecs);
-EXPORT_SYMBOL(fb_firmware_edid);
EXPORT_SYMBOL(fb_get_mode);
EXPORT_SYMBOL(fb_validate_mode);
EXPORT_SYMBOL(fb_destroy_modedb);