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authorWink Saville <wink@saville.com>2006-11-10 12:27:52 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-11-13 07:40:42 -0800
commite40c67597eac7a0b0e676867517b01a5a57f7b4b (patch)
tree842f4cc8ad5739c9935e4ca1aca8ad0743de54da /drivers/video/nvidia/nv_setup.c
parent7947d2cc2c2e01125a393de83862d02b621999fe (diff)
downloadlinux-e40c67597eac7a0b0e676867517b01a5a57f7b4b.tar.gz
[PATCH] Patch for nvidia divide by zero error for 7600 pci-express card
The following patch resolves the divide by zero error I encountered on my
system:

	http://marc.10east.com/?l=linux-fbdev-devel&m=116058257024413&w=2

I accomplished this by merging what I thought was appropriate from:

	http://webcvs.freedesktop.org/xorg/driver/xf86-video-nv/src/

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/video/nvidia/nv_setup.c')
-rw-r--r--drivers/video/nvidia/nv_setup.c18
1 files changed, 17 insertions, 1 deletions
diff --git a/drivers/video/nvidia/nv_setup.c b/drivers/video/nvidia/nv_setup.c
index a18a9aebf05f..61dc46fecf2b 100644
--- a/drivers/video/nvidia/nv_setup.c
+++ b/drivers/video/nvidia/nv_setup.c
@@ -359,6 +359,7 @@ int NVCommonSetup(struct fb_info *info)
 	case 0x0186:
 	case 0x0187:
 	case 0x018D:
+	case 0x0228:
 	case 0x0286:
 	case 0x028C:
 	case 0x0316:
@@ -382,6 +383,10 @@ int NVCommonSetup(struct fb_info *info)
 	case 0x034C:
 	case 0x0160:
 	case 0x0166:
+	case 0x0169:
+	case 0x016B:
+	case 0x016C:
+	case 0x016D:
 	case 0x00C8:
 	case 0x00CC:
 	case 0x0144:
@@ -639,12 +644,23 @@ int NVCommonSetup(struct fb_info *info)
 		par->fpHeight = NV_RD32(par->PRAMDAC, 0x0800) + 1;
 		par->fpSyncs = NV_RD32(par->PRAMDAC, 0x0848) & 0x30000033;
 
-		printk("Panel size is %i x %i\n", par->fpWidth, par->fpHeight);
+		printk("nvidiafb: Panel size is %i x %i\n", par->fpWidth, par->fpHeight);
 	}
 
 	if (monA)
 		info->monspecs = *monA;
 
+	if (!par->FlatPanel || !par->twoHeads)
+		par->FPDither = 0;
+
+	par->LVDS = 0;
+	if (par->FlatPanel && par->twoHeads) {
+		NV_WR32(par->PRAMDAC0, 0x08B0, 0x00010004);
+		if (par->PRAMDAC0[0x08b4] & 1)
+			par->LVDS = 1;
+		printk("nvidiafb: Panel is %s\n", par->LVDS ? "LVDS" : "TMDS");
+	}
+
 	kfree(edidA);
 	kfree(edidB);
 done: