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 5437c896e10ae1cbcfa194fefc8f1c7a5576c290..2297bbc88c6f6c3b0cd0066becaaaf15d19d2323 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -5739,13 +5739,6 @@ parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb,
        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;