From 0dbaf60e90411a7242375db33b91f3e4628ddd4f Mon Sep 17 00:00:00 2001
From: "Antonino A. Daplas" <adaplas@gmail.com>
Date: Fri, 9 Sep 2005 13:04:34 -0700
Subject: [PATCH] --- yaml --- r: 8213 b: refs/heads/master c:
 5e518d7672dea4cd7c60871e40d0490c52f01d13 h: refs/heads/master i:   8211:
 2954dff712d71ddc8b4712ddf28961b713b074d1 v: v3

---
 [refs]                         |  2 +-
 trunk/arch/i386/boot/video.S   |  2 +-
 trunk/arch/i386/kernel/setup.c |  1 +
 trunk/drivers/video/fbmon.c    | 35 +++++++++++++++++++++++++++++++++-
 trunk/include/linux/fb.h       |  4 +++-
 5 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/[refs] b/[refs]
index 1fbe93521100..d0fdcae69905 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 53eed4ec8bcd8701b9135859ec46b10a0d88ba25
+refs/heads/master: 5e518d7672dea4cd7c60871e40d0490c52f01d13
diff --git a/trunk/arch/i386/boot/video.S b/trunk/arch/i386/boot/video.S
index 02bf625a681b..92f669470142 100644
--- a/trunk/arch/i386/boot/video.S
+++ b/trunk/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/trunk/arch/i386/kernel/setup.c b/trunk/arch/i386/kernel/setup.c
index a659d274914c..fa0c69eb937a 100644
--- a/trunk/arch/i386/kernel/setup.c
+++ b/trunk/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)
diff --git a/trunk/drivers/video/fbmon.c b/trunk/drivers/video/fbmon.c
index c2718bb94949..791bec3d672a 100644
--- a/trunk/drivers/video/fbmon.c
+++ b/trunk/drivers/video/fbmon.c
@@ -29,6 +29,7 @@
 #include <linux/tty.h>
 #include <linux/fb.h>
 #include <linux/module.h>
+#include <video/edid.h>
 #ifdef CONFIG_PPC_OF
 #include <linux/pci.h>
 #include <asm/prom.h>
@@ -1251,9 +1252,41 @@ int fb_validate_mode(const struct fb_var_screeninfo *var, struct fb_info *info)
 		-EINVAL : 0;
 }
 
+#if defined(__i386__)
+#include <linux/pci.h>
+
+/*
+ * We need to ensure that the EDID block is only returned for
+ * the primary graphics adapter.
+ */
+
+const unsigned char *fb_firmware_edid(struct device *device)
+{
+	struct pci_dev *dev = NULL;
+	struct resource *res = NULL;
+	unsigned char *edid = NULL;
+
+	if (device)
+		dev = to_pci_dev(device);
+
+	if (dev)
+		res = &dev->resource[PCI_ROM_RESOURCE];
+
+	if (res && res->flags & IORESOURCE_ROM_SHADOW)
+		edid = edid_info.dummy;
+
+	return edid;
+}
+#else
+const unsigned char *fb_firmware_edid(struct device *device)
+{
+	return NULL;
+}
+#endif /* _i386_ */
+
 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);
diff --git a/trunk/include/linux/fb.h b/trunk/include/linux/fb.h
index 70da819df0f5..e3e16f43b1bb 100644
--- a/trunk/include/linux/fb.h
+++ b/trunk/include/linux/fb.h
@@ -859,7 +859,9 @@ extern int fb_get_mode(int flags, u32 val, struct fb_var_screeninfo *var,
 extern int fb_validate_mode(const struct fb_var_screeninfo *var,
 			    struct fb_info *info);
 extern int fb_parse_edid(unsigned char *edid, struct fb_var_screeninfo *var);
-extern void fb_edid_to_monspecs(unsigned char *edid, struct fb_monspecs *specs);
+extern const unsigned char *fb_firmware_edid(struct device *device);
+extern void fb_edid_to_monspecs(unsigned char *edid,
+				struct fb_monspecs *specs);
 extern void fb_destroy_modedb(struct fb_videomode *modedb);
 
 /* drivers/video/modedb.c */