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-rw-r--r--arch/i386/boot/video.S2
-rw-r--r--arch/i386/kernel/setup.c1
-rw-r--r--drivers/video/fbmon.c35
-rw-r--r--include/linux/fb.h4
4 files changed, 39 insertions, 3 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)
diff --git a/drivers/video/fbmon.c b/drivers/video/fbmon.c
index c2718bb..791bec3 100644
--- a/drivers/video/fbmon.c
+++ b/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/include/linux/fb.h b/include/linux/fb.h
index 70da819..e3e16f4 100644
--- a/include/linux/fb.h
+++ b/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 */
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