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| author | Antonino A. Daplas <adaplas@gmail.com> | 2005-09-09 13:04:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-09-09 13:57:59 -0700 |
| commit | 5e518d7672dea4cd7c60871e40d0490c52f01d13 (patch) | |
| tree | a97dc33b2ce9a0553fb6b9b3206ee7674ae4d06a /arch | |
| parent | 53eed4ec8bcd8701b9135859ec46b10a0d88ba25 (diff) | |
| download | op-kernel-dev-5e518d7672dea4cd7c60871e40d0490c52f01d13.zip op-kernel-dev-5e518d7672dea4cd7c60871e40d0490c52f01d13.tar.gz | |
[PATCH] fbdev: Resurrect hooks to get EDID from firmware
For the i386, code is already present in video.S that gets the EDID from the
video BIOS. Make this visible so drivers can also use this data as fallback
when i2c does not work.
To ensure that the EDID block is returned for the primary graphics adapter
only, by check if the IORESOURCE_ROM_SHADOW flag is set.
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/boot/video.S | 2 | ||||
| -rw-r--r-- | arch/i386/kernel/setup.c | 1 |
2 files changed, 2 insertions, 1 deletions
diff --git a/arch/i386/boot/video.S b/arch/i386/boot/video.S index 02bf625a..92f6694 100644 --- a/arch/i386/boot/video.S +++ b/arch/i386/boot/video.S @@ -1949,7 +1949,7 @@ store_edid: movw $0x4f15, %ax # do VBE/DDC movw $0x01, %bx movw $0x00, %cx - movw $0x01, %dx + movw $0x00, %dx movw $0x140, %di int $0x10 diff --git a/arch/i386/kernel/setup.c b/arch/i386/kernel/setup.c index a659d27..fa0c69e 100644 --- a/arch/i386/kernel/setup.c +++ b/arch/i386/kernel/setup.c @@ -139,6 +139,7 @@ struct sys_desc_table_struct { unsigned char table[0]; }; struct edid_info edid_info; +EXPORT_SYMBOL_GPL(edid_info); struct ist_info ist_info; #if defined(CONFIG_X86_SPEEDSTEP_SMI) || \ defined(CONFIG_X86_SPEEDSTEP_SMI_MODULE) |
