drm/nouveau: remove quirk to fabricate DVI-A output on DCB 1.5 boards
There's a report of this quirk breaking modesetting on at least one board.
After discussion with Francisco Jerez, we've decided to remove it:
<darktama> it's not worth limiting the quirk to just where we know it can
work? i'm happy either way really :)
<curro> hmm, don't think so, most if not all DCB15 cards have just one DAC
<curro> and with that quirk there's no way to tell if the load comes from
the VGA or DVI port
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Acked-by: Francisco Jerez <currojerez@riseup.net>
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 5437c89..2297bbc 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -5739,13 +5739,6 @@
case OUTPUT_TV:
entry->tvconf.has_component_output = false;
break;
- case OUTPUT_TMDS:
- /*
- * Invent a DVI-A output, by copying the fields of the DVI-D
- * output; reported to work by math_b on an NV20(!).
- */
- fabricate_vga_output(dcb, entry->i2c_index, entry->heads);
- break;
case OUTPUT_LVDS:
if ((conn & 0x00003f00) != 0x10)
entry->lvdsconf.use_straps_for_mode = true;
