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authorAntonino A. Daplas <adaplas@gmail.com>2005-09-10 00:04:36 +0400
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-10 00:57:59 +0400
commit094bb659f53b6d90aab6067268d6d14f1f352d30 (patch)
tree37f2e11d4c0345bb7b84ec99f50ff77bd2f395a3 /drivers/video/nvidia/nv_i2c.c
parent13776711ce4b234b5ad153e55e8b5d6703c6b1ef (diff)
downloadlinux-094bb659f53b6d90aab6067268d6d14f1f352d30.tar.xz
[PATCH] nvidiafb: Fallback to firmware EDID
If nvidiafb fails to probe the EDID block, get the EDID from the BIOS. 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 'drivers/video/nvidia/nv_i2c.c')
-rw-r--r--drivers/video/nvidia/nv_i2c.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/video/nvidia/nv_i2c.c b/drivers/video/nvidia/nv_i2c.c
index 1a91bffdda26..ace484fa61ce 100644
--- a/drivers/video/nvidia/nv_i2c.c
+++ b/drivers/video/nvidia/nv_i2c.c
@@ -194,8 +194,9 @@ static u8 *nvidia_do_probe_i2c_edid(struct nvidia_i2c_chan *chan)
return NULL;
}
-int nvidia_probe_i2c_connector(struct nvidia_par *par, int conn, u8 **out_edid)
+int nvidia_probe_i2c_connector(struct fb_info *info, int conn, u8 **out_edid)
{
+ struct nvidia_par *par = info->par;
u8 *edid = NULL;
int i;
@@ -205,10 +206,17 @@ int nvidia_probe_i2c_connector(struct nvidia_par *par, int conn, u8 **out_edid)
if (edid)
break;
}
+
+ if (!edid && conn == 1) {
+ /* try to get from firmware */
+ edid = kmalloc(EDID_LENGTH, GFP_KERNEL);
+ if (edid)
+ memcpy(edid, fb_firmware_edid(info->device),
+ EDID_LENGTH);
+ }
+
if (out_edid)
*out_edid = edid;
- if (!edid)
- return 1;
- return 0;
+ return (edid) ? 0 : 1;
}